7Baggers

CMS Energy Corporation
(NYSE:CMS) 

CMS stock logo

CMS Energy Corporation operates as an energy company primarily in Michigan. The company operates through four segments: Electric Utility, Gas Utility, Enterprises, and EnerBank. The Electric Utility segment is involved in the generation, purchase, transmission, distribution, and sale of electricity....

Founded: 1886
Full Time Employees: 8,128
Sector: Utilities
Industry: Utilities-Regulated Electric

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    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-09-30 2014-06-30 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 
                                                                         
      operating revenue
    2,730,000,000 2,233,000,000 2,021,000,000 1,838,000,000 2,447,000,000 1,989,000,000 1,743,000,000 1,607,000,000 2,176,000,000 1,950,000,000 1,673,000,000 1,555,000,000 2,284,000,000 2,278,000,000 2,024,000,000 1,920,000,000 2,374,000,000 2,033,000,000 1,725,000,000 1,558,000,000 2,083,000,000 1,798,000,000 1,575,000,000 1,443,000,000 1,864,000,000 1,795,000,000 1,546,000,000 1,445,000,000 2,059,000,000 1,829,000,000 1,599,000,000 1,492,000,000 1,953,000,000 1,778,000,000 1,527,000,000 1,449,000,000 1,829,000,000 1,640,000,000 1,587,000,000 1,371,000,000 1,801,000,000 1,509,000,000 1,486,000,000 1,350,000,000 2,111,000,000 1,430,000,000 1,468,000,000 1,736,000,000 1,445,000,000 1,406,000,000 1,979,000,000 1,464,000,000 1,364,000,000 2,055,000,000 1,682,000,000 1,443,000,000 1,340,000,000 1,967,000,000 1,597,000,000 1,274,000,000 1,228,000,000 2,106,000,000 1,844,000,000 1,428,000,000 1,365,000,000 2,184,000,000 1,674,000,000 1,282,000,000 1,319,000,000 
      operating expenses
                                                                         
      fuel for electric generation
    220,000,000 153,000,000 153,000,000 134,000,000 217,000,000 175,000,000 179,000,000 114,000,000 156,000,000 152,000,000 162,000,000 110,000,000 137,000,000 185,000,000 312,000,000 241,000,000 167,000,000 155,000,000 184,000,000 116,000,000 138,000,000 101,000,000 108,000,000 63,000,000 103,000,000 102,000,000 130,000,000 119,000,000 142,000,000 131,000,000 150,000,000 115,000,000 132,000,000 119,000,000 144,000,000 125,000,000 117,000,000 132,000,000 145,000,000 97,000,000 125,000,000 131,000,000 161,000,000 134,000,000 167,000,000 161,000,000 154,000,000 155,000,000 165,000,000 147,000,000 154,000,000 199,000,000 153,000,000 152,000,000 132,000,000 183,000,000 151,000,000 138,000,000 148,000,000 140,000,000 118,000,000 135,000,000 130,000,000 173,000,000 135,000,000 162,000,000 96,000,000 130,000,000 98,000,000 
      purchased and interchange power
    451,000,000 374,000,000 513,000,000 439,000,000 380,000,000 308,000,000 362,000,000 349,000,000 314,000,000 315,000,000 377,000,000 342,000,000 341,000,000 418,000,000 572,000,000 483,000,000 455,000,000 435,000,000 462,000,000 391,000,000 377,000,000 343,000,000 430,000,000 362,000,000 357,000,000 349,000,000 413,000,000 356,000,000 378,000,000 391,000,000 447,000,000 393,000,000 382,000,000 371,000,000 426,000,000 373,000,000 333,000,000 343,000,000 454,000,000 365,000,000 346,000,000 324,000,000 392,000,000 341,000,000 349,000,000 387,000,000 359,000,000 324,000,000 383,000,000 347,000,000 333,000,000 365,000,000 303,000,000 300,000,000 284,000,000 363,000,000 314,000,000 278,000,000 274,000,000 318,000,000 282,000,000 289,000,000 309,000,000 406,000,000 297,000,000 323,000,000 328,000,000 390,000,000 374,000,000 
      purchased power – related parties
    20,000,000 25,000,000 21,000,000 30,000,000 18,000,000 18,000,000 19,000,000 16,000,000 18,000,000 18,000,000 21,000,000 17,000,000 19,000,000 20,000,000 21,000,000 18,000,000 17,000,000 21,000,000 21,000,000 17,000,000 18,000,000 19,000,000 13,000,000 14,000,000 18,000,000 22,000,000 19,000,000 16,000,000 18,000,000 22,000,000 21,000,000 19,000,000 19,000,000 22,000,000 21,000,000 21,000,000 22,000,000 16,250,000 22,000,000 21,000,000 22,000,000 22,000,000 21,000,000 17,000,000 23,000,000 21,000,000 22,000,000 23,000,000 21,000,000 23,000,000 23,000,000                   
      cost of gas sold
    516,000,000 260,000,000 42,000,000 124,000,000 383,000,000 191,000,000 32,000,000 66,000,000 351,000,000 229,000,000 42,000,000 84,000,000 547,000,000 454,000,000 118,000,000 216,000,000 468,000,000 303,000,000 57,000,000 96,000,000 279,000,000 187,000,000 35,000,000 82,000,000 273,000,000 224,000,000 35,000,000 106,000,000 404,000,000 295,000,000 48,000,000 112,000,000 381,000,000 256,000,000 47,000,000 111,000,000 336,000,000 220,000,000 45,000,000 91,000,000 354,000,000 207,000,000 52,000,000 113,000,000 589,000,000 86,000,000 187,000,000 379,000,000 76,000,000 166,000,000 607,000,000 107,000,000 220,000,000 768,000,000 530,000,000 104,000,000 178,000,000 778,000,000 572,000,000 123,000,000 208,000,000 963,000,000 751,000,000 191,000,000 351,000,000 984,000,000 682,000,000 199,000,000 347,000,000 
      maintenance and other operating expenses
    448,000,000 509,000,000 416,000,000 397,000,000 405,000,000 420,000,000 412,000,000 404,000,000 402,000,000 403,000,000 447,000,000 406,000,000 431,000,000 530,000,000 413,000,000 392,000,000 334,000,000 534,000,000 410,000,000 355,000,000 323,000,000 420,000,000 317,000,000 351,000,000 315,000,000 438,000,000 313,000,000 343,000,000 354,000,000 415,000,000 366,000,000 326,000,000 310,000,000 327,000,000 304,000,000 315,000,000 290,000,000 348,000,000 290,000,000 276,000,000 293,000,000 332,000,000 311,000,000 312,000,000 283,000,000 329,000,000 304,000,000 365,000,000 285,000,000 304,000,000 282,000,000 301,000,000 288,000,000 279,000,000 362,000,000 273,000,000 296,000,000             
      depreciation and amortization
    412,000,000 342,000,000 288,000,000 288,000,000 388,000,000 326,000,000 273,000,000 273,000,000 368,000,000 310,000,000 262,000,000 255,000,000 353,000,000 296,000,000 243,000,000 242,000,000 345,000,000 282,000,000 250,000,000 244,000,000 340,000,000 281,000,000 228,000,000 223,000,000 316,000,000 263,000,000 215,000,000 216,000,000 298,000,000 244,000,000 206,000,000 204,000,000 279,000,000 229,000,000 193,000,000 197,000,000 262,000,000 214,000,000 183,000,000 176,000,000 238,000,000 186,000,000 173,000,000 169,000,000 222,000,000 153,000,000 151,000,000 165,000,000 145,000,000 137,000,000 181,000,000 120,000,000 122,000,000 162,000,000 140,000,000 133,000,000 131,000,000 172,000,000 148,000,000 128,000,000 121,000,000 173,000,000 153,000,000 135,000,000 128,000,000 173,000,000 138,000,000 121,000,000 121,000,000 
      general taxes
    173,000,000 135,000,000 107,000,000 109,000,000 162,000,000 126,000,000 99,000,000 102,000,000 155,000,000 117,000,000 91,000,000 97,000,000 142,000,000 104,000,000 87,000,000 89,000,000 132,000,000 99,000,000 81,000,000 87,000,000 123,000,000 95,000,000 75,000,000 75,000,000 114,000,000 86,000,000 70,000,000 71,000,000 106,000,000 81,000,000 67,000,000 68,000,000 87,000,000 75,000,000 62,000,000 66,000,000 81,000,000 72,000,000 62,000,000 60,000,000 87,000,000 62,000,000 59,000,000 60,000,000 81,000,000 57,000,000 56,000,000 60,000,000 54,000,000 50,000,000 70,000,000 33,000,000 51,000,000 67,000,000 54,000,000 49,000,000 41,000,000 66,000,000 53,000,000 51,000,000 48,000,000 65,000,000 49,000,000 47,000,000 48,000,000 60,000,000 46,000,000 53,000,000 55,000,000 
      total operating expenses
    2,240,000,000 1,798,000,000 1,540,000,000 1,521,000,000 1,953,000,000 1,564,000,000 1,376,000,000 1,324,000,000 1,764,000,000 1,544,000,000 1,402,000,000 1,311,000,000 1,970,000,000 2,007,000,000 1,766,000,000 1,681,000,000 1,918,000,000 1,829,000,000 1,465,000,000 1,306,000,000 1,598,000,000 1,446,000,000 1,206,000,000 1,170,000,000 1,496,000,000 1,484,000,000 1,195,000,000 1,227,000,000 1,700,000,000 1,579,000,000 1,305,000,000 1,237,000,000 1,590,000,000 1,399,000,000 1,197,000,000 1,208,000,000 1,441,000,000 1,350,000,000 1,201,000,000 1,086,000,000 1,465,000,000 1,264,000,000 1,169,000,000 1,146,000,000 1,714,000,000 1,194,000,000 1,233,000,000 1,472,000,000 1,128,000,000 1,174,000,000 1,650,000,000 1,148,000,000 1,157,000,000 1,749,000,000 1,524,000,000 1,124,000,000 1,078,000,000             
      operating income
    490,000,000 435,000,000 481,000,000 317,000,000 494,000,000 425,000,000 367,000,000 283,000,000 412,000,000 406,000,000 271,000,000 244,000,000 314,000,000 271,000,000 258,000,000 239,000,000 456,000,000 204,000,000 260,000,000 252,000,000 485,000,000 352,000,000 369,000,000 273,000,000 368,000,000 311,000,000 351,000,000 218,000,000 359,000,000 250,000,000 294,000,000 255,000,000 363,000,000 379,000,000 330,000,000 241,000,000 388,000,000 290,000,000 386,000,000 285,000,000 336,000,000 245,000,000 317,000,000 204,000,000 397,000,000 236,000,000 235,000,000 264,000,000 317,000,000 232,000,000 329,000,000 316,000,000 207,000,000 306,000,000 158,000,000 319,000,000 262,000,000 242,000,000 111,000,000 238,000,000 142,000,000 205,000,000 180,000,000 212,000,000 155,000,000 253,000,000 -178,000,000 194,000,000 21,000,000 
      yoy
    -0.81% 2.35% 31.06% 12.01% 19.90% 4.68% 35.42% 15.98% 31.21% 49.82% 5.04% 2.09% -31.14% 32.84% -0.77% -5.16% -5.98% -42.05% -29.54% -7.69% 31.79% 13.18% 5.13% 25.23% 2.51% 24.40% 19.39% -14.51% -1.10% -34.04% -10.91% 5.81% -6.44% 30.69% -14.51% -15.44% 15.48% 18.37% 21.77% 39.71% -15.37% 3.81% 34.89% -22.73% 25.24% 1.72% -28.57% -16.46% 53.14% -24.18% 108.23% -0.94% -20.99% 26.45% 42.34% 34.03% 84.51% 18.05% -38.33% 12.26% -8.39% -18.97% -201.12% 9.28% 638.10%     
      qoq
    12.64% -9.56% 51.74% -35.83% 16.24% 15.80% 29.68% -31.31% 1.48% 49.82% 11.07% -22.29% 15.87% 5.04% 7.95% -47.59% 123.53% -21.54% 3.17% -48.04% 37.78% -4.61% 35.16% -25.82% 18.33% -11.40% 61.01% -39.28% 43.60% -14.97% 15.29% -29.75% -4.22% 14.85% 36.93% -37.89% 33.79% -24.87% 35.44% -15.18% 37.14% -22.71% 55.39% -48.61% 68.22% 0.43% -10.98% -16.72% 36.64% -29.48% 4.11% 52.66% -32.35% 93.67% -50.47% 21.76% 8.26% 118.02% -53.36% 67.61% -30.73% 13.89% -15.09% 36.77% -38.74% -242.13% -191.75% 823.81%  
      other income
    28,000,000 23,000,000 19,000,000 95,000,000 14,000,000 40,000,000 46,000,000 77,000,000 44,000,000 43,000,000 34,000,000 103,000,000 15,000,000 16,000,000 2,000,000  1,000,000 2,000,000 1,000,000 5,000,000 1,000,000 3,000,000 1,000,000 2,000,000  1,000,000  2,000,000 1,000,000  1,000,000  1,000,000 2,000,000 2,000,000  2,000,000 1,000,000 2,000,000 2,000,000 3,000,000 2,000,000 2,000,000 3,000,000 3,000,000 2,000,000 3,000,000 3,000,000 2,000,000 2,000,000 3,000,000 3,000,000 5,000,000 4,000,000 5,000,000 9,000,000 9,000,000 9,000,000 12,000,000 4,000,000 33,000,000 5,000,000 6,000,000 3,000,000 3,000,000 3,000,000 25,000,000 4,000,000 8,000,000 
      non-operating retirement benefits
    51,000,000 49,000,000 48,000,000 47,000,000 42,000,000 42,000,000 42,000,000 41,000,000 44,000,000 45,000,000 45,000,000 45,000,000 45,000,000 51,000,000 54,000,000 52,000,000 48,000,000 44,000,000 40,000,000 40,000,000 41,000,000                                                 
      other expense
    -4,000,000 -11,000,000 -5,000,000 -5,000,000 -6,000,000 -21,000,000 -4,000,000 -5,000,000 -2,000,000 -5,000,000 -2,000,000 -2,000,000 -4,000,000     -1,750,000 -3,000,000 -2,000,000 -2,000,000                                                 
      total other income
    75,000,000 61,000,000 62,000,000 137,000,000 50,000,000 61,000,000 84,000,000 113,000,000 86,000,000 83,000,000 77,000,000 146,000,000 56,000,000 52,000,000 54,000,000 43,000,000 48,000,000 41,000,000 44,000,000 48,000,000 44,000,000 -15,000,000 28,000,000 32,000,000 39,000,000 28,000,000 31,000,000 27,000,000 23,000,000 -3,000,000 22,000,000 22,000,000 29,000,000 8,250,000 10,000,000 9,000,000 14,000,000 4,750,000 5,000,000 6,000,000 8,000,000 13,000,000 7,000,000 3,000,000 6,000,000 6,000,000  -1,000,000  5,000,000 8,000,000 9,000,000 8,000,000 9,000,000 -3,000,000 16,000,000 14,000,000             
      interest charges
                                                                         
      interest on long-term debt
    209,000,000 208,000,000 204,000,000 199,000,000 187,000,000 181,000,000 176,000,000 171,000,000 172,000,000 162,000,000 158,000,000 152,000,000 144,000,000 139,000,000 127,000,000 122,000,000 121,000,000 122,000,000 120,000,000 120,000,000 119,000,000 122,000,000 124,000,000 121,000,000 116,000,000 112,000,000 111,000,000 110,000,000 106,000,000 108,000,000 101,000,000 103,000,000 100,000,000 102,000,000 101,000,000 103,000,000 100,000,000 105,000,000 103,000,000 103,000,000 100,000,000 98,000,000 95,000,000 97,000,000 96,000,000 98,000,000 99,000,000 96,000,000 96,000,000 99,000,000 94,000,000 99,000,000 99,000,000 100,000,000 101,000,000 97,000,000 98,000,000 98,000,000 103,000,000 96,000,000 95,000,000 89,000,000 92,000,000 86,000,000 84,000,000 87,000,000 87,000,000 96,000,000 100,000,000 
      interest expense – related parties
    3,000,000 3,000,000 2,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000                                          
      other interest expense
    -1,000,000 -8,000,000   -1,000,000 3,000,000 4,000,000 5,000,000 2,000,000 8,000,000 4,000,000 6,000,000  500,000  1,000,000 1,000,000 2,000,000 3,000,000 2,000,000 15,000,000 15,000,000 17,000,000 17,000,000 19,000,000 20,000,000 20,000,000 19,000,000 16,000,000 14,000,000 14,000,000 10,000,000 11,000,000 8,000,000 10,000,000 8,000,000 8,000,000 7,000,000 8,000,000 7,000,000 7,000,000 -6,000,000 7,000,000 7,000,000 6,000,000 4,000,000 3,000,000 4,000,000 3,000,000 4,000,000 5,000,000 6,000,000 6,000,000                 
      allowance for borrowed funds used during construction
    -8,000,000 -2,000,000 -3,000,000 -3,000,000 -3,000,000 -7,000,000 -5,000,000 -6,000,000  -1,000,000 -1,000,000 -1,000,000  -1,000,000   -1,000,000 -1,000,000 -1,000,000  -1,000,000  -1,000,000  -1,000,000 -1,000,000 -1,000,000 -1,000,000 -1,000,000 -1,000,000 -1,000,000 -1,000,000                    -1,000,000 -1,000,000 -1,000,000  -1,000,000 -1,000,000 -1,000,000            
      total interest charges
    203,000,000 201,000,000 203,000,000 199,000,000 186,000,000 180,000,000 178,000,000 173,000,000 177,000,000 172,000,000 164,000,000 160,000,000 147,000,000 139,000,000 130,000,000 126,000,000 124,000,000 126,000,000 125,000,000 125,000,000 136,000,000 140,000,000 143,000,000 141,000,000 137,000,000 134,000,000 133,000,000 131,000,000 121,000,000 121,000,000 114,000,000 112,000,000 111,000,000 110,000,000 111,000,000 110,000,000 107,000,000 111,000,000 110,000,000 108,000,000 106,000,000 91,000,000 101,000,000 103,000,000 101,000,000 101,000,000 101,000,000 99,000,000 99,000,000 102,000,000 98,000,000 104,000,000 104,000,000 105,000,000 107,000,000 102,000,000 117,000,000             
      income before income taxes
    362,000,000 295,000,000 340,000,000 255,000,000 358,000,000 306,000,000 273,000,000 223,000,000 321,000,000 317,000,000 184,000,000 230,000,000 223,000,000 184,000,000 182,000,000 156,000,000 380,000,000 119,000,000 179,000,000 175,000,000 393,000,000 197,000,000 254,000,000 164,000,000 270,000,000 205,000,000 249,000,000 114,000,000 261,000,000 126,000,000 202,000,000 165,000,000 281,000,000 222,000,000 229,000,000 140,000,000 295,000,000 124,000,000 281,000,000 183,000,000 238,000,000 167,000,000 223,000,000 104,000,000 302,000,000 141,000,000 127,000,000 164,000,000 218,000,000 135,000,000 239,000,000 221,000,000 111,000,000 210,000,000 48,000,000 233,000,000 159,000,000 150,000,000 3,000,000 132,000,000 79,000,000 121,000,000 81,000,000 119,000,000 76,000,000 172,000,000 -248,000,000 130,000,000 -84,000,000 
      income tax expense
    85,000,000 53,000,000 68,000,000 62,000,000 63,000,000 51,000,000 26,000,000 41,000,000 58,000,000 66,000,000 11,000,000 41,000,000 29,000,000 21,000,000 19,000,000 14,000,000 39,000,000 5,000,000 26,000,000 22,000,000 51,000,000 35,000,000 44,000,000 27,000,000 27,000,000 37,000,000 42,000,000 20,000,000 48,000,000 17,000,000 33,000,000 25,000,000 40,000,000 224,000,000 57,000,000 47,000,000 96,000,000 46,000,000 95,000,000 58,000,000 74,000,000 60,000,000 75,000,000 36,000,000 100,000,000 47,000,000 43,000,000 62,000,000 91,000,000 54,000,000 95,000,000 81,000,000 10,000,000 77,000,000 17,000,000 87,000,000 59,000,000 61,000,000 32,000,000 51,000,000 29,000,000 48,000,000        
      net income
    277,000,000 242,000,000 272,000,000 193,000,000 295,000,000 255,000,000 247,000,000 182,000,000 263,000,000 251,000,000 173,000,000 190,000,000 194,000,000 163,000,000 163,000,000 142,000,000 345,000,000 634,000,000 183,000,000 171,000,000 342,000,000 162,000,000 210,000,000 137,000,000  168,000,000 207,000,000 94,000,000  109,000,000 169,000,000 140,000,000  -2,000,000 172,000,000 93,000,000  78,000,000 186,000,000 125,000,000  107,000,000 148,000,000 68,000,000  94,000,000 84,000,000 102,000,000 127,000,000 81,000,000  140,000,000 101,000,000 135,000,000 25,000,000 146,000,000 84,000,000 88,000,000 7,000,000 81,000,000 79,000,000 73,000,000 64,000,000 81,000,000 49,000,000 106,000,000 -124,000,000 84,000,000 36,000,000 
      yoy
    -6.10% -5.10% 10.12% 6.04% 12.17% 1.59% 42.77% -4.21% 35.57% 53.99% 6.13% 33.80% -43.77% -74.29% -10.93% -16.96% 0.88% 291.36% -12.86% 24.82%  -3.57% 1.45% 45.74%  54.13% 22.49% -32.86%  -5550.00% -1.74% 50.54%  -102.56% -7.53% -25.60%  -27.10% 25.68% 83.82%  13.83% 76.19% -33.33%  16.05%  -27.14% 25.74% -40.00%  -4.11% 20.24% 53.41% 257.14% 80.25% 6.33% 20.55% -89.06% 0.00% 61.22% -31.13% -151.61% -3.57% 36.11%     
      qoq
    14.46% -11.03% 40.93% -34.58% 15.69% 3.24% 35.71% -30.80% 4.78% 45.09% -8.95% -2.06% 19.02% 0.00% 14.79% -58.84% -45.58% 246.45% 7.02% -50.00% 111.11% -22.86% 53.28%   -18.84% 120.21%   -35.50% 20.71%   -101.16% 84.95%   -58.06% 48.80%   -27.70% 117.65%   11.90% -17.65% -19.69% 56.79%   38.61% -25.19% 440.00% -82.88% 73.81% -4.55% 1157.14% -91.36% 2.53% 8.22% 14.06% -20.99% 65.31% -53.77% -185.48% -247.62% 133.33%  
      loss attributable to noncontrolling interests
    -63,000,000 -47,000,000 -5,000,000 -8,000,000 -9,000,000 -10,000,000 -6,000,000 -16,000,000 -24,000,000 -58,000,000 -3,000,000 -8,000,000 -10,000,000 -8,000,000 -2,000,000 -6,000,000 -8,000,000 -4,500,000 -6,000,000  -7,000,000                                                 
      net income attributable to cms energy
    340,000,000 289,000,000 277,000,000 201,000,000 304,000,000 265,000,000 253,000,000 198,000,000 287,000,000 309,000,000 176,000,000 198,000,000 204,000,000 171,000,000 165,000,000 148,000,000 353,000,000                                   139,000,000 100,000,000  25,000,000 145,000,000 82,000,000 88,000,000 5,000,000 75,000,000 77,000,000 72,000,000        
      preferred stock dividends
    2,000,000 3,000,000 2,000,000 3,000,000 2,000,000 3,000,000 2,000,000 3,000,000 2,000,000 3,000,000 2,000,000 3,000,000 2,000,000 3,000,000 2,000,000 3,000,000 2,000,000                                       3,000,000 2,000,000 3,000,000 3,000,000 2,000,000 3,000,000 3,000,000        
      net income available to common stockholders
    338,000,000 286,000,000 275,000,000 198,000,000 302,000,000 262,000,000 251,000,000 195,000,000 285,000,000 306,000,000 174,000,000 195,000,000 202,000,000 168,000,000 163,000,000 145,000,000 351,000,000   176,000,000 349,000,000 158,000,000 218,000,000 136,000,000 243,000,000 167,000,000 207,000,000 93,000,000 213,000,000 108,000,000 169,000,000 139,000,000 241,000,000 -3,000,000 172,000,000 92,000,000 199,000,000 77,000,000 186,000,000 124,000,000 164,000,000 106,000,000 148,000,000 67,000,000 202,000,000 94,000,000 83,000,000 102,000,000 126,000,000 80,000,000 144,000,000 139,000,000 100,000,000 135,000,000 25,000,000 134,000,000 80,000,000 85,000,000 2,000,000 73,000,000 74,000,000 69,000,000 61,000,000 79,000,000 46,000,000 103,000,000 -127,000,000 82,000,000 33,000,000 
      basic earnings per average common share
    1,100,000 940,000 920,000 670,000 1,010,000 612,500 840,000 650,000 960,000            1,210,000 550,000 760,000 480,000 860,000 590,000 730,000 330,000 750,000 380,000 600,000 490,000 860,000 -10,000 610,000 330,000 710,000 280,000 670,000 450,000 590,000 390,000 530,000 250,000 730,000 340,000 310,000                       
      diluted earnings per average common share
    1,100,000 940,000 920,000 660,000 1,010,000 612,500 840,000 650,000 960,000            1,210,000 550,000 760,000 480,000 850,000 580,000 730,000 330,000 750,000 380,000 590,000 490,000 860,000 -10,000 610,000 330,000 710,000 280,000 670,000 450,000 590,000 380,000 530,000 250,000 730,000 340,000 300,000                       
      income from continuing operations
         255,000,000 247,000,000 182,000,000  251,000,000 173,000,000 189,000,000 194,000,000 163,000,000 163,000,000 142,000,000 341,000,000 114,000,000 153,000,000 153,000,000                            102,000,000 127,000,000 81,000,000 144,000,000 140,000,000 101,000,000 133,000,000 31,000,000 146,000,000 100,000,000 89,000,000 16,000,000 81,000,000 50,000,000  64,000,000 80,000,000 50,000,000 106,000,000 -122,000,000 84,000,000 -55,000,000 
      income from discontinued operations, net of tax of — for all periods
                                                                         
      income from discontinued operations, net of tax of —, —, —, and 1
             250,000  1,000,000                                                          
      income from discontinued operations, net of tax of — and 1
                                                                         
      interest income
                 750,000 1,000,000 1,000,000 1,000,000 1,000,000  1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 2,000,000 2,000,000 2,000,000 1,000,000 3,000,000 2,000,000 4,000,000 2,000,000 2,000,000 3,000,000 2,000,000 5,000,000 2,000,000 1,000,000 2,000,000 1,000,000 9,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000  1,000,000 2,000,000  4,000,000 2,000,000                 
      allowance for equity funds used during construction
                 1,000,000 1,000,000 1,000,000 2,000,000 3,000,000 2,000,000 2,000,000 1,000,000 2,000,000 1,000,000 2,000,000 1,000,000 3,000,000 2,000,000 3,000,000 2,000,000 2,000,000 2,000,000 1,000,000 1,000,000  1,000,000 2,000,000 2,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 2,000,000 2,000,000 2,000,000 2,000,000 1,000,000 1,000,000 1,000,000 3,000,000 1,000,000 2,000,000 1,000,000 1,000,000 1,000,000 2,000,000 1,000,000            
      income from equity method investees
                 250,000 1,000,000   2,000,000 4,000,000 2,000,000 2,000,000 4,000,000  -2,000,000 3,000,000 4,000,000 5,000,000 2,000,000 -1,000,000 3,000,000 -1,000,000 4,000,000 3,000,000 5,000,000 3,000,000 3,000,000 4,000,000 1,000,000 5,000,000 3,000,000 4,000,000 5,000,000 4,000,000 1,000,000 4,000,000 4,000,000 3,000,000 2,000,000 3,000,000 3,000,000 5,000,000 4,000,000 2,000,000 4,000,000 3,000,000 3,000,000 2,000,000 3,000,000  -1,000,000  -1,000,000        
      income from discontinued operations, net of tax of —, 9, 1, and 25
                 1,000,000                                                        
      income from discontinued operations, net of tax of —, 7, 1, and 16
                                                                         
      income from discontinued operations, net of tax of 1 and 9
                    4,000,000                                                     
      interest income – related parties
                            7,000,000                                             
      income from discontinued operations, net of tax of 9, 4, 25, and 10
                     20,500,000 30,000,000                                                   
      income from discontinued operations, net of tax of 7, 3, 16, and 6
                       18,000,000                                                  
      income attributable to noncontrolling interests
                       -5,000,000  4,000,000 -8,000,000 1,000,000  1,000,000  1,000,000  1,000,000  1,000,000  1,000,000  1,000,000  1,000,000  1,000,000  1,000,000  1,000,000   1,000,000  1,000,000 1,000,000  1,000,000 1,000,000   1,000,000 2,000,000  2,000,000 6,000,000 2,000,000 1,000,000        
      nonoperating retirement benefits
                         28,000,000 29,000,000 30,000,000 31,000,000 23,000,000 22,000,000 23,000,000 23,000,000 22,000,000 22,000,000 22,000,000 24,000,000 14,000,000 3,000,000 4,000,000 3,000,000                                 
      dividends declared per common share
                                 268,125 357,500 357,500 357,500 249,375 332,500 332,500 330,000 232,500 310,000 310,000 310,000 217,500 290,000 290,000 290,000 270,000 270,000    0.255   210,000         359,999.73 0.09   50,000 50,000 50,000 
      gain on asset sales
                                                           -2,000,000 -4,000,000   -5,000,000 -8,000,000  -1,000,000  -8,000,000  -37,000,000 18,000,000  
      income from discontinued operations, net of tax of -, -, -, and 4
                                                                         
      income from discontinued operations, net of tax of - and 4
                                                                         
      in millions, except per share amounts
                                                                         
      three months ended march 31
                                                      2,013   2,011,000,000                
      net income attributable to common stockholders
                                                                         
      amounts attributable to continuing operations
                                                      144   133,000,000                
      amounts attributable to discontinued operations
                                                         2,000,000                
      basic earnings from continuing operations
                                                      0.55   530,000                
      basic earnings from discontinued operations
                                                         10,000                
      basic earnings attributable to common stock
                                                      0.55   540,000                
      diluted earnings from continuing operations
                                                      0.53   510,000                
      diluted earnings from discontinued operations
                                                         10,000                
      diluted earnings attributable to common stock
                                                      0.53   520,000                
      purchased power — related parties
                                                       23,000,000 20,000,000 21,000,000 22,000,000 21,000,000 21,000,000             
      insurance settlement
                                                            -50,000,000             
      income from discontinued operations, net of tax
                                                                         
      expense of -, -, 1 and 5
                                                                         
      charge for deferred issuance costs on preferred stock
                                                           8,000,000              
      income from discontinued operations, net of tax expense of —, 6, 1, and 5
                                                                         
      interest
                                                         2,000,000                
      other interest
                                                         6,000,000 6,000,000 6,000,000 20,000,000 8,000,000 33,000,000 7,000,000 8,000,000 8,000,000 7,000,000 8,000,000 7,000,000 11,000,000 12,000,000 14,000,000 17,000,000 
      income from discontinued operations, net of tax benefit of 1 and
                                                         2,000,000                
      interest and dividends
                                                          5,000,000 5,000,000 4,000,000 5,000,000 7,000,000 6,000,000 6,000,000 5,000,000 7,000,000 5,000,000 9,000,000 9,000,000 18,000,000 33,000,000 30,000,000 
      income from discontinued operations, net of tax (tax benefit) of -, , 5 and 15
                                                          -4,250,000               
      income from discontinued operations, net of tax expense of 6, 17, 5 and 16
                                                            -16,000,000             
      purchased and interchange power — related parties
                                                             21,000,000            
      other operating expenses
                                                             233,000,000 234,000,000 228,000,000 254,000,000 227,000,000 222,000,000 218,000,000 209,000,000 188,000,000 262,000,000 226,000,000 233,000,000 
      maintenance
                                                             42,000,000 57,000,000 52,000,000 63,000,000 48,000,000 53,000,000 51,000,000 49,000,000 40,000,000 46,000,000 45,000,000 49,000,000 
      income from discontinued operations, net of tax benefit of and
                                                             -1,000,000            
      regulatory return on capital expenditures
                                                              5,000,000 7,000,000 6,000,000 7,000,000 8,000,000 9,000,000 8,000,000 8,000,000 7,000,000 9,000,000 7,000,000 
      interest on long-term debt — related parties
                                                              1,750,000 1,000,000 3,000,000 3,000,000 4,000,000 3,000,000 4,000,000 3,000,000 4,000,000 3,000,000  
      capitalized interest
                                                              -750,000 -1,000,000 -1,000,000 -1,000,000  -1,000,000 -1,000,000 -2,000,000 -1,000,000 -1,000,000 -1,000,000 
      income from discontinued operations, net of tax of —, 1, 19 and —
                                                              7,250,000           
      income from discontinued operations, net of tax (tax benefit) of 19, , 19 and
                                                                29,000,000         
      earnings from equity method investees
                                                                  2,000,000 5,000,000 -1,000,000 -1,000,000 4,000,000  17,000,000 
      asset impairment charges, net of insurance recoveries
                                                                       -76,000,000  
      foreign currency gain
                                                                  250,000 1,000,000     1,000,000 
      fixed charges
                                                                         
      income tax benefit
                                                                  16,000,000 37,000,000 25,000,000 64,000,000 -137,000,000 46,000,000 -29,000,000 
      income before minority interests
                                                                  60,500,000 82,000,000 51,000,000 108,000,000   -81,000,000 
      minority interests
                                                                  1,500,000 2,000,000 1,000,000 2,000,000    
      income from discontinued operations, net of tax (tax benefit) of 1, -, - and
                                                                   1,000,000      
      preferred dividends
                                                                  3,000,000 2,000,000 3,000,000 3,000,000 3,000,000 2,000,000 3,000,000 
      redemption premium on preferred stock
                                                                         
      september 30
                                                                  502 2,008   501,750,000 2,007,000,000  
      cms energy
                                                                         
      income from discontinued operations
                                                                   0.01      
      net income available to common stock
                                                                  0.255 0.36      
      asset impairment charges
                                                                        38,000,000 
      preferred dividends of subsidiaries
                                                                     1,000,000  1,000,000  
      income from discontinued operations, net of tax (tax benefit) of , 62, and
                                                                    -1,000,000     
      june 30
                                                                        2,007,000,000 
      income from discontinued operations, net of tax benefit of 63 in 2007
                                                                         
      fuel costs mark-to-market at the mcv partnership
                                                                         
      income before minority interests (obligations)
                                                                      -61,000,000 133,000,000  
      minority interests (obligations)
                                                                      3,000,000 3,000,000 3,000,000 
      income from discontinued operations, net of tax (tax benefit) of -, 11, , and 24
                                                                      -21,750,000   
      gain from discontinued operations
                                                                      -10,000  410,000 
      net income attributable to common stock
                                                                      -570,000 370,000 150,000 
      loss on asset sales
                                                                        -14,000,000 
      interest on long-term debt - related parties
                                                                        4,000,000 
      income from discontinued operations, net of tax (tax benefit) of 62, 14, , and 13
                                                                        91,000,000 
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-06-30 2016-03-31 2015-09-30 2014-06-30 2014-03-31 2013-09-30 2013-06-30 2013-03-31 2009-12-31 2009-06-30 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 
                                                            
        current assets
                                                            
        cash and cash equivalents
      175,000,000 509,000,000 362,000,000 844,000,000 465,000,000 103,000,000 412,000,000 699,000,000 802,000,000 227,000,000 157,000,000 389,000,000 571,000,000  168,000,000 77,000,000 446,000,000 452,000,000 102,000,000 153,000,000 496,000,000 168,000,000 519,000,000 1,587,000,000 834,000,000 140,000,000 403,000,000 312,000,000 234,000,000 153,000,000 323,000,000 477,000,000 195,000,000 182,000,000 142,000,000 418,000,000 433,000,000 385,000,000 177,000,000        1,025,000,000        
        restricted cash and cash equivalents
      88,000,000 106,000,000 70,000,000 81,000,000 61,000,000 75,000,000 55,000,000 90,000,000 59,000,000 21,000,000 27,000,000 17,000,000 27,000,000  27,000,000 19,000,000 28,000,000 24,000,000 30,000,000 18,000,000 28,000,000 17,000,000 39,000,000 17,000,000 27,000,000 17,000,000 29,000,000 22,000,000 33,000,000 21,000,000 42,000,000 17,000,000 26,000,000 17,000,000 27,000,000 17,000,000 30,000,000 18,000,000 28,000,000        31,000,000        
        accounts receivable and accrued revenue, less allowance of 32 in 2026 and 27 in 2025
      1,402,000,000                                                      
        accounts receivable – related parties
      14,000,000 17,000,000 12,000,000 12,000,000 12,000,000 14,000,000 9,000,000 8,000,000 9,000,000 11,000,000 9,000,000 13,000,000 13,000,000  14,000,000 13,000,000 10,000,000 12,000,000 17,000,000 16,000,000 17,000,000 19,000,000    17,000,000 16,000,000 15,000,000 14,000,000 14,000,000 15,000,000 14,000,000 13,000,000 12,000,000 12,000,000 12,000,000 12,000,000 12,000,000 11,000,000                
        inventories at average cost
                                                            
        gas in underground storage
      257,000,000 427,000,000 566,000,000 402,000,000 247,000,000 435,000,000 536,000,000 419,000,000 326,000,000 587,000,000 725,000,000 570,000,000 437,000,000  1,057,000,000 606,000,000 233,000,000 462,000,000 556,000,000 318,000,000 195,000,000 353,000,000 420,000,000 285,000,000 225,000,000 399,000,000 505,000,000 353,000,000 256,000,000 450,000,000 551,000,000 367,000,000 244,000,000 458,000,000 584,000,000 395,000,000 243,000,000 377,000,000 314,000,000        887,000,000  1,476,000,000 993,000,000 623,000,000  1,301,000,000  
        materials and supplies
      338,000,000 329,000,000 307,000,000 305,000,000 310,000,000 299,000,000 294,000,000 280,000,000 273,000,000 267,000,000 255,000,000 244,000,000 228,000,000  196,000,000 184,000,000 174,000,000 168,000,000 173,000,000 172,000,000 162,000,000 155,000,000 154,000,000 150,000,000 143,000,000 140,000,000 142,000,000 147,000,000 148,000,000 143,000,000 140,000,000 143,000,000 136,000,000 133,000,000 126,000,000 121,000,000 118,000,000 119,000,000 120,000,000        115,000,000  110,000,000 95,000,000 97,000,000  83,000,000  
        generating plant fuel stock
      47,000,000 35,000,000 30,000,000 29,000,000 23,000,000 35,000,000 54,000,000 80,000,000 78,000,000 84,000,000 80,000,000 73,000,000 61,000,000  51,000,000 55,000,000 47,000,000 37,000,000 31,000,000 49,000,000 50,000,000 68,000,000 65,000,000 71,000,000 66,000,000 66,000,000 52,000,000 52,000,000 38,000,000 57,000,000 50,000,000 60,000,000 65,000,000 81,000,000 77,000,000 66,000,000 64,000,000 77,000,000 64,000,000        136,000,000  140,000,000 106,000,000 88,000,000  125,000,000  
        deferred property taxes
      385,000,000 479,000,000 294,000,000 324,000,000 360,000,000 448,000,000 277,000,000 309,000,000 344,000,000 426,000,000 255,000,000 282,000,000 310,000,000  234,000,000 258,000,000 287,000,000 356,000,000 215,000,000 243,000,000 267,000,000 332,000,000 199,000,000 223,000,000 246,000,000 305,000,000 184,000,000 204,000,000 226,000,000 279,000,000 167,000,000 187,000,000 207,000,000 257,000,000 157,000,000 179,000,000 203,000,000 174,000,000 193,000,000        128,000,000  111,000,000 124,000,000 136,000,000  103,000,000  
        regulatory assets
      94,000,000 104,000,000 84,000,000 132,000,000 173,000,000 229,000,000 180,000,000 183,000,000 201,000,000 203,000,000 169,000,000 182,000,000 203,000,000  15,000,000 23,000,000 34,000,000 46,000,000 11,000,000 21,000,000 30,000,000 42,000,000 9,000,000 16,000,000 24,000,000 33,000,000 7,000,000 18,000,000 26,000,000 37,000,000 10,000,000 14,000,000 15,000,000 20,000,000 19,000,000 9,000,000 12,000,000 7,000,000 11,000,000                
        prepayments and other current assets
      225,000,000 160,000,000 98,000,000 140,000,000 115,000,000 103,000,000 92,000,000 100,000,000 110,000,000 80,000,000 91,000,000 125,000,000 130,000,000  103,000,000 167,000,000 158,000,000 120,000,000 130,000,000 139,000,000 145,000,000 112,000,000 148,000,000 162,000,000 101,000,000 86,000,000 86,000,000 83,000,000 97,000,000 101,000,000 103,000,000 93,000,000 101,000,000 83,000,000 118,000,000 117,000,000 120,000,000 102,000,000 91,000,000                
        total current assets
      3,025,000,000 3,472,000,000 2,745,000,000 3,193,000,000 2,782,000,000 2,790,000,000 2,703,000,000 2,985,000,000 3,091,000,000 2,839,000,000 2,449,000,000 2,603,000,000 2,989,000,000  3,026,000,000 2,393,000,000 2,459,000,000 2,627,000,000 2,477,000,000 2,322,000,000 2,513,000,000 2,404,000,000 2,494,000,000 3,532,000,000 2,817,000,000 2,331,000,000 2,305,000,000 2,254,000,000 2,376,000,000 2,468,000,000 2,374,000,000 2,286,000,000 2,207,000,000 2,475,000,000 2,121,000,000 2,211,000,000 2,215,000,000 2,031,000,000 1,890,000,000                
        plant, property, and equipment
      27,939,000,000 27,628,000,000 26,532,000,000 26,097,000,000 25,483,000,000 25,363,000,000 24,844,000,000 24,520,000,000 24,230,000,000 24,128,000,000 23,068,000,000 22,856,000,000 21,740,000,000  21,262,000,000 20,715,000,000 21,656,000,000 21,391,000,000 20,961,000,000 20,701,000,000 20,279,000,000 19,954,000,000 19,191,000,000 18,214,000,000 18,112,000,000 18,030,000,000 17,381,000,000 17,133,000,000 17,493,000,000 17,363,000,000 16,842,000,000 16,450,000,000 16,196,000,000 15,996,000,000 15,563,000,000 15,317,000,000 15,059,000,000 14,575,000,000 13,456,000,000                
        plant, property, and equipment, gross
      38,323,000,000 37,763,000,000 36,583,000,000 35,962,000,000 35,281,000,000 34,932,000,000 34,156,000,000 33,680,000,000 33,236,000,000 33,135,000,000 31,997,000,000 31,592,000,000 30,866,000,000  30,125,000,000 29,426,000,000 30,199,000,000 29,893,000,000 29,450,000,000 29,027,000,000 28,457,000,000 27,907,000,000 27,036,000,000 25,911,000,000 25,675,000,000 25,390,000,000 24,645,000,000 24,263,000,000 24,729,000,000 24,400,000,000 23,751,000,000 23,258,000,000 22,878,000,000 22,506,000,000 21,966,000,000 21,628,000,000 21,265,000,000 20,497,000,000 19,334,000,000                
        less accumulated depreciation and amortization
      10,384,000,000 10,135,000,000 10,051,000,000 9,865,000,000 9,798,000,000 9,569,000,000 9,312,000,000 9,160,000,000 9,006,000,000 9,007,000,000 8,929,000,000 8,736,000,000 9,126,000,000  8,863,000,000 8,711,000,000 8,543,000,000 8,502,000,000 8,489,000,000 8,326,000,000 8,178,000,000 7,953,000,000 7,845,000,000 7,697,000,000 7,563,000,000 7,360,000,000 7,264,000,000 7,130,000,000 7,236,000,000 7,037,000,000 6,909,000,000 6,808,000,000 6,682,000,000 6,510,000,000 6,403,000,000 6,311,000,000 6,206,000,000 5,922,000,000 5,878,000,000                
        construction work in progress
      3,594,000,000 3,052,000,000 3,158,000,000 2,750,000,000 2,420,000,000 2,098,000,000 1,827,000,000 1,357,000,000 1,050,000,000 944,000,000 1,626,000,000 1,408,000,000 1,263,000,000  1,078,000,000 912,000,000 884,000,000 961,000,000 973,000,000 832,000,000 928,000,000 1,085,000,000 1,439,000,000 1,222,000,000 1,032,000,000 896,000,000 1,143,000,000 973,000,000 822,000,000 763,000,000 948,000,000 787,000,000 708,000,000 765,000,000 881,000,000 802,000,000 798,000,000 612,000,000 1,451,000,000        553,000,000        
        total plant, property, and equipment
      31,533,000,000 30,680,000,000 29,690,000,000 28,847,000,000 27,903,000,000 27,461,000,000 26,671,000,000 25,877,000,000 25,280,000,000 25,072,000,000 24,694,000,000 24,264,000,000 23,003,000,000  22,340,000,000 21,627,000,000 22,540,000,000 22,352,000,000 21,934,000,000 21,533,000,000 21,207,000,000 21,039,000,000 20,630,000,000 19,436,000,000 19,144,000,000 18,926,000,000 18,524,000,000 18,106,000,000 18,315,000,000 18,126,000,000 17,790,000,000 17,237,000,000 16,904,000,000 16,761,000,000 16,444,000,000 16,119,000,000 15,857,000,000 15,187,000,000 14,907,000,000                
        other non‑current assets
                                                            
        accounts receivable
      18,000,000 18,000,000 18,000,000 68,000,000 20,000,000 20,000,000 20,000,000 22,000,000 22,000,000 22,000,000 30,000,000 24,000,000 23,000,000  28,000,000 29,000,000 30,000,000 30,000,000 18,000,000 18,000,000                                   
        investments
      65,000,000 61,000,000 64,000,000 62,000,000 71,000,000 69,000,000 74,000,000 73,000,000 73,000,000 76,000,000 74,000,000 72,000,000 72,000,000  70,000,000 69,000,000 71,000,000 71,000,000 73,000,000 71,000,000 72,000,000 70,000,000 68,000,000 68,000,000 72,000,000 71,000,000 68,000,000 64,000,000 62,000,000 69,000,000 72,000,000 74,000,000 67,000,000 64,000,000 71,000,000 68,000,000 66,000,000 66,000,000 64,000,000                
        postretirement benefits
      2,005,000,000 1,957,000,000 1,744,000,000 1,705,000,000 1,666,000,000 1,627,000,000 1,591,000,000 1,550,000,000 1,509,000,000 1,468,000,000 1,307,000,000 1,274,000,000 1,241,000,000  136,000,000 137,000,000 140,000,000 142,000,000 147,000,000 149,000,000 151,000,000 152,000,000 382,000,000 140,000,000 141,000,000 674,000,000 447,000,000 443,000,000 440,000,000 436,000,000 797,000,000 787,000,000 778,000,000 766,000,000 760,000,000 770,000,000 781,000,000 570,000,000 581,000,000        1,386,000,000  849,000,000 867,000,000 883,000,000  1,032,000,000  
        other
      341,000,000 398,000,000 202,000,000 254,000,000 310,000,000 384,000,000 198,000,000 263,000,000 318,000,000 357,000,000 166,000,000 221,000,000 254,000,000  1,481,000,000 1,555,000,000 1,502,000,000 1,414,000,000 817,000,000 819,000,000 873,000,000 869,000,000 688,000,000 707,000,000 723,000,000 739,000,000 492,000,000 519,000,000 538,000,000 478,000,000 629,000,000 779,000,000 789,000,000 799,000,000 269,000,000 294,000,000 321,000,000 285,000,000 315,000,000        33,000,000  34,000,000 34,000,000 34,000,000  34,000,000  
        total other non‑current assets
      5,727,000,000 5,789,000,000 5,573,000,000 5,659,000,000 5,610,000,000 5,669,000,000 5,443,000,000 5,493,000,000 5,530,000,000 5,606,000,000 5,370,000,000 5,398,000,000 5,394,000,000  5,006,000,000 5,020,000,000 3,741,000,000 3,774,000,000 6,102,000,000 6,098,000,000 6,003,000,000 6,223,000,000    5,580,000,000                             
        total assets
      40,285,000,000 39,941,000,000 38,008,000,000 37,699,000,000 36,295,000,000 35,920,000,000 34,817,000,000 34,355,000,000 33,901,000,000 33,517,000,000 32,513,000,000 32,265,000,000 31,386,000,000  30,372,000,000 29,040,000,000 28,740,000,000 28,753,000,000 30,513,000,000 29,953,000,000 29,723,000,000 29,666,000,000 29,280,000,000 28,581,000,000 27,447,000,000 26,837,000,000 26,009,000,000 25,292,000,000 24,793,000,000 24,529,000,000 23,913,000,000 23,312,000,000 22,868,000,000 23,050,000,000 22,120,000,000 21,867,000,000 21,623,000,000 20,463,000,000 20,037,000,000        15,277,000,000  14,077,000,000 13,890,000,000 14,242,000,000  14,304,000,000  
        liabilities and equity
                                                            
        in millions
                                                            
        current liabilities
                                                            
        current portion of long-term debt and finance leases
      1,360,000,000 956,000,000 1,162,000,000 1,125,000,000 707,000,000 1,195,000,000 507,000,000 772,000,000 772,000,000 980,000,000 1,043,000,000 1,132,000,000 1,433,000,000                                          
        accounts payable
      1,231,000,000 1,395,000,000 1,141,000,000 1,139,000,000 943,000,000 1,085,000,000 947,000,000 789,000,000 644,000,000 802,000,000 839,000,000 752,000,000 679,000,000  949,000,000 906,000,000 687,000,000 875,000,000 787,000,000 659,000,000 538,000,000 671,000,000 662,000,000 629,000,000 490,000,000 622,000,000 598,000,000 627,000,000 544,000,000 723,000,000 680,000,000 623,000,000 534,000,000 725,000,000 624,000,000 599,000,000 479,000,000 559,000,000 534,000,000        406,000,000  417,000,000 478,000,000 396,000,000  392,000,000  
        accounts payable – related parties
      7,000,000 9,000,000 8,000,000 7,000,000 8,000,000 8,000,000 7,000,000 7,000,000 7,000,000 7,000,000 7,000,000 7,000,000 8,000,000  7,000,000 8,000,000 8,000,000 11,000,000 8,000,000 7,000,000 7,000,000 7,000,000 5,000,000 6,000,000 7,000,000 13,000,000 9,000,000 9,000,000 6,000,000 10,000,000 9,000,000 6,000,000 6,000,000 15,000,000 8,000,000 9,000,000 9,000,000 9,000,000 9,000,000                
        accrued rate refunds
       28,000,000 9,000,000 4,000,000 2,000,000 38,000,000 53,000,000 50,000,000 28,000,000 54,000,000 29,000,000 21,000,000 28,000,000     12,000,000 9,000,000 21,000,000 2,000,000 20,000,000 28,000,000 44,000,000 42,000,000 35,000,000 18,000,000 34,000,000 25,000,000 4,000,000 14,000,000 45,000,000 46,000,000 33,000,000 35,000,000 77,000,000 73,000,000 41,000,000 34,000,000        58,000,000  11,000,000 66,000,000 24,000,000  29,000,000  
        accrued interest
      207,000,000 182,000,000 204,000,000 170,000,000 168,000,000 156,000,000 161,000,000 155,000,000 169,000,000 142,000,000 157,000,000 145,000,000 125,000,000  117,000,000 107,000,000 112,000,000 107,000,000 112,000,000 103,000,000 113,000,000 106,000,000 108,000,000 109,000,000 100,000,000 104,000,000 99,000,000 95,000,000 109,000,000 94,000,000 83,000,000 102,000,000 77,000,000 103,000,000 79,000,000 104,000,000 73,000,000 107,000,000 72,000,000        113,000,000  78,000,000 99,000,000 82,000,000  96,000,000  
        accrued taxes
      516,000,000 708,000,000 200,000,000 461,000,000 474,000,000 654,000,000 183,000,000 449,000,000 455,000,000 612,000,000 159,000,000 405,000,000 408,000,000  178,000,000 392,000,000 389,000,000 515,000,000 146,000,000 357,000,000 360,000,000 457,000,000 128,000,000 326,000,000 330,000,000 437,000,000 125,000,000 295,000,000 295,000,000 398,000,000 107,000,000 267,000,000 265,000,000 360,000,000 90,000,000 256,000,000 260,000,000 252,000,000 254,000,000        225,000,000  119,000,000 226,000,000 245,000,000  155,000,000  
        regulatory liabilities
      87,000,000 85,000,000 89,000,000 93,000,000 99,000,000 111,000,000 120,000,000 120,000,000 72,000,000 56,000,000 75,000,000 88,000,000 107,000,000  67,000,000 76,000,000 92,000,000 146,000,000 191,000,000 214,000,000 204,000,000 151,000,000 69,000,000 84,000,000 88,000,000 87,000,000 72,000,000 67,000,000 107,000,000 155,000,000 165,000,000 159,000,000 134,000,000 80,000,000 85,000,000 85,000,000 85,000,000 78,000,000 76,000,000        114,000,000  159,000,000 204,000,000 126,000,000  176,000,000  
        other current liabilities
      184,000,000 185,000,000 239,000,000 197,000,000 226,000,000 209,000,000 213,000,000 186,000,000 148,000,000 149,000,000 163,000,000 187,000,000 154,000,000  170,000,000 181,000,000 144,000,000 156,000,000 183,000,000 174,000,000 155,000,000 156,000,000 193,000,000 181,000,000 162,000,000 186,000,000 170,000,000 182,000,000 148,000,000 147,000,000 134,000,000 117,000,000 134,000,000 195,000,000 130,000,000 145,000,000 135,000,000 127,000,000 118,000,000                
        total current liabilities
      3,592,000,000 3,548,000,000 3,052,000,000 3,196,000,000 2,627,000,000 3,521,000,000 2,191,000,000 2,528,000,000 2,295,000,000 2,895,000,000 2,719,000,000 2,737,000,000 2,942,000,000  2,488,000,000 2,389,000,000 1,814,000,000 2,204,000,000 3,254,000,000 3,114,000,000 2,885,000,000 3,074,000,000 2,992,000,000 3,123,000,000 2,940,000,000 2,704,000,000 2,165,000,000 2,386,000,000 2,106,000,000 2,624,000,000 3,442,000,000 2,535,000,000 2,482,000,000 2,784,000,000 2,261,000,000 2,115,000,000 1,926,000,000 2,091,000,000 2,047,000,000                
        non‑current liabilities
                                                            
        long-term debt
      17,456,000,000 17,807,000,000 16,774,000,000 16,781,000,000 16,148,000,000 15,194,000,000 15,548,000,000 14,917,000,000 14,973,000,000 14,508,000,000 14,114,000,000 13,925,000,000 12,985,000,000  12,685,000,000 11,667,000,000 12,045,000,000 12,046,000,000 12,027,000,000 11,728,000,000 13,561,000,000 13,634,000,000 13,275,000,000 13,414,000,000 12,545,000,000 11,951,000,000 12,040,000,000 11,236,000,000 11,105,000,000 10,615,000,000 8,869,000,000 9,272,000,000 8,996,000,000 9,123,000,000 9,024,000,000 9,091,000,000 9,129,000,000 8,486,000,000 8,170,000,000        6,356,000,000  5,718,000,000 5,520,000,000 5,544,000,000  5,390,000,000  
        non-current portion of finance leases
      262,000,000 135,000,000 137,000,000 139,000,000 111,000,000 112,000,000 112,000,000 79,000,000 61,000,000 62,000,000 63,000,000 65,000,000 66,000,000                                          
        aros
      797,000,000 792,000,000                                                     
        deferred investment tax credit
      117,000,000 118,000,000 119,000,000 120,000,000 121,000,000 122,000,000 123,000,000 124,000,000 125,000,000 126,000,000 127,000,000 127,000,000 128,000,000  130,000,000 131,000,000 111,000,000 112,000,000 113,000,000 113,000,000 114,000,000 115,000,000 116,000,000 118,000,000 119,000,000 120,000,000 116,000,000 117,000,000 98,000,000 99,000,000 101,000,000 102,000,000 86,000,000 87,000,000 88,000,000 89,000,000 72,000,000 73,000,000 55,000,000        53,000,000  56,000,000 56,000,000 57,000,000  59,000,000  
        deferred income taxes
      3,345,000,000 3,252,000,000 3,172,000,000 3,079,000,000 3,002,000,000 2,925,000,000 2,837,000,000 2,785,000,000 2,679,000,000 2,615,000,000 2,541,000,000 2,503,000,000 2,451,000,000  2,367,000,000 2,326,000,000 2,315,000,000 2,210,000,000 2,014,000,000 1,966,000,000 1,926,000,000 1,863,000,000 1,821,000,000 1,763,000,000 1,722,000,000 1,655,000,000 1,588,000,000 1,548,000,000 1,544,000,000 1,487,000,000 1,382,000,000 1,344,000,000 1,326,000,000 1,269,000,000 2,501,000,000 2,422,000,000 2,390,000,000 2,127,000,000 2,078,000,000        129,000,000  48,000,000 78,000,000 186,000,000    
        other non‑current liabilities
      417,000,000 392,000,000 396,000,000 409,000,000 370,000,000 407,000,000 427,000,000 429,000,000 413,000,000 415,000,000 429,000,000 415,000,000 407,000,000  383,000,000 382,000,000 371,000,000 375,000,000 377,000,000 382,000,000 397,000,000 398,000,000    383,000,000                             
        total non‑current liabilities
      26,642,000,000 26,682,000,000 25,525,000,000 25,532,000,000 24,745,000,000 23,651,000,000 23,985,000,000 23,286,000,000 23,100,000,000 22,497,000,000 22,036,000,000 21,822,000,000 20,792,000,000  20,380,000,000 19,180,000,000 19,521,000,000 19,361,000,000 20,606,000,000 20,473,000,000 20,536,000,000 20,515,000,000    19,078,000,000                             
        commitments and contingencies
                                                            
        equity
                                                            
        common stockholders’ equity
                                                            
        common stock
      3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000  3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000        2,000,000  2,000,000 2,000,000 2,000,000  2,000,000  
        other paid-in capital
      6,669,000,000 6,510,000,000 6,355,000,000 5,998,000,000 5,975,000,000 6,009,000,000 6,001,000,000 5,991,000,000 5,975,000,000 5,705,000,000 5,515,000,000 5,506,000,000 5,494,000,000  5,423,000,000 5,417,000,000 5,406,000,000 5,406,000,000 5,397,000,000 5,389,000,000 5,371,000,000 5,365,000,000 5,225,000,000 5,217,000,000 5,207,000,000 5,113,000,000 5,104,000,000 5,097,000,000 5,087,000,000 5,088,000,000 5,083,000,000 5,076,000,000 5,037,000,000 5,019,000,000 5,013,000,000 5,006,000,000 4,927,000,000 4,906,000,000 4,897,000,000        4,552,000,000  4,491,000,000 4,488,000,000 4,483,000,000  4,476,000,000  
        accumulated other comprehensive loss
      -35,000,000 -36,000,000 -41,000,000 -41,000,000 -41,000,000 -41,000,000 -45,000,000 -45,000,000 -45,000,000 -46,000,000 -51,000,000 -51,000,000 -51,000,000  -52,000,000 -52,000,000 -54,000,000 -59,000,000 -81,000,000 -82,000,000 -84,000,000 -86,000,000 -79,000,000 -76,000,000 -76,000,000 -73,000,000 -67,000,000 -67,000,000 -66,000,000 -65,000,000 -59,000,000 -61,000,000               -27,000,000  -17,000,000 -22,000,000 -149,000,000  -136,000,000  
        retained earnings
      2,605,000,000 2,443,000,000 2,323,000,000 2,210,000,000 2,174,000,000 2,035,000,000 1,928,000,000 1,830,000,000 1,789,000,000 1,658,000,000 1,495,000,000 1,463,000,000 1,410,000,000  1,315,000,000 1,286,000,000 1,275,000,000 1,057,000,000 547,000,000 487,000,000 437,000,000 214,000,000 171,000,000 70,000,000 51,000,000                              
        total common stockholders’ equity
      9,242,000,000 8,920,000,000 8,640,000,000 8,170,000,000 8,111,000,000 8,006,000,000 7,887,000,000 7,779,000,000 7,722,000,000 7,320,000,000 6,962,000,000 6,921,000,000 6,856,000,000  6,689,000,000 6,654,000,000 6,630,000,000 6,407,000,000 5,866,000,000 5,797,000,000 5,727,000,000 5,496,000,000 5,320,000,000 5,214,000,000 5,185,000,000 5,018,000,000 4,957,000,000 4,851,000,000 4,858,000,000 4,755,000,000 4,749,000,000 4,672,000,000 4,596,000,000 4,441,000,000 4,535,000,000 4,449,000,000 4,370,000,000 4,156,000,000 4,109,000,000                
        cumulative redeemable perpetual preferred stock, series c, authorized 9.2 depositary shares; outstanding 9.2 depositary shares in both periods
      224,000,000 224,000,000 224,000,000 224,000,000 224,000,000 224,000,000 224,000,000 224,000,000 224,000,000 224,000,000 224,000,000 224,000,000 224,000,000  224,000,000 224,000,000 224,000,000                                      
        total stockholders’ equity
      9,466,000,000 9,144,000,000 8,864,000,000 8,394,000,000 8,335,000,000 8,230,000,000 8,111,000,000 8,003,000,000 7,946,000,000 7,544,000,000 7,186,000,000 7,145,000,000 7,080,000,000  6,913,000,000 6,878,000,000 6,854,000,000 6,631,000,000 6,090,000,000                                    
        noncontrolling interests
      585,000,000 567,000,000 567,000,000 577,000,000 588,000,000 518,000,000 530,000,000 538,000,000 560,000,000 581,000,000 572,000,000 561,000,000 572,000,000  591,000,000 593,000,000 551,000,000 557,000,000 563,000,000 569,000,000 575,000,000 581,000,000 578,000,000 37,000,000 37,000,000 37,000,000 37,000,000 37,000,000 37,000,000 37,000,000 37,000,000 37,000,000 37,000,000 37,000,000 37,000,000 37,000,000 37,000,000 37,000,000 37,000,000        51,000,000        
        total equity
      10,051,000,000 9,711,000,000 9,431,000,000 8,971,000,000 8,923,000,000 8,748,000,000 8,641,000,000 8,541,000,000 8,506,000,000 8,125,000,000 7,758,000,000 7,706,000,000 7,652,000,000  7,504,000,000 7,471,000,000 7,405,000,000 7,188,000,000 6,653,000,000 6,366,000,000 6,302,000,000 6,077,000,000 5,898,000,000 5,251,000,000 5,222,000,000 5,055,000,000 4,994,000,000 4,888,000,000 4,895,000,000 4,792,000,000 4,786,000,000 4,709,000,000 4,633,000,000 4,478,000,000 4,572,000,000 4,486,000,000 4,407,000,000 4,193,000,000 4,146,000,000        2,920,000,000        
        total liabilities and equity
      40,285,000,000 39,941,000,000 38,008,000,000 37,699,000,000 36,295,000,000 35,920,000,000 34,817,000,000 34,355,000,000 33,901,000,000 33,517,000,000 32,513,000,000 32,265,000,000 31,386,000,000  30,372,000,000 29,040,000,000 28,740,000,000 28,753,000,000 30,513,000,000 29,953,000,000 29,723,000,000 29,666,000,000 29,280,000,000 28,581,000,000 27,447,000,000 26,837,000,000 26,009,000,000 25,292,000,000 24,793,000,000 24,529,000,000 23,913,000,000 23,312,000,000 22,868,000,000 23,050,000,000 22,120,000,000 21,867,000,000 21,623,000,000 20,463,000,000 20,037,000,000                
        accounts receivable and accrued revenue, less allowance of 27 in 2025 and 23 in 2024
       1,306,000,000                                                     
        december 31
       2,025,000,000    2,024,000,000    2,023,000,000        2,021,000,000    2,020,000,000    2,019,000,000    2,018,000,000    2,017,000,000                     
        notes payable
           65,000,000    93,000,000 247,000,000     45,000,000          90,000,000   30,000,000 97,000,000 279,000,000   170,000,000 230,000,000            19,000,000      1,000,000  
        accounts receivable and accrued revenue, less allowance of 28 in 2025 and 23 in 2024
        922,000,000                                                    
        asset retirement obligations
        731,000,000 747,000,000 725,000,000 728,000,000 761,000,000 769,000,000 777,000,000 771,000,000 768,000,000 759,000,000 762,000,000  747,000,000 620,000,000 619,000,000 628,000,000 599,000,000 607,000,000 564,000,000 553,000,000 510,000,000 483,000,000 485,000,000 477,000,000 451,000,000 438,000,000 433,000,000 432,000,000 421,000,000 426,000,000 427,000,000 430,000,000 443,000,000 452,000,000 451,000,000 442,000,000 440,000,000                
        accounts receivable and accrued revenue, less allowance of 30 in 2025 and 23 in 2024
         924,000,000                                                   
        accounts receivable and accrued revenue, less allowance of 29 in 2025 and 23 in 2024
          1,016,000,000                                                  
        accounts receivable and accrued revenue, less allowance of 23 in 2024 and 21 in 2023
           1,049,000,000  817,000,000 889,000,000                                              
        accounts receivable and accrued revenue, less allowance of 22 in 2024 and 21 in 2023
            794,000,000                                                
        accounts receivable and accrued revenue, less allowance of 21 in 2023 and 27 in 2022
               933,000,000                                             
        accounts receivable and accrued revenue, less allowance of 26 in 2023 and 27 in 2022
                681,000,000  1,009,000,000                                          
        accounts receivable and accrued revenue, less allowance of 27 in both periods
                 708,000,000                                           
        cash flows from operating activities
                                                            
        net income
                   813,000,000                                240,000,000  300,000,000    -215,000,000   
        adjustments to reconcile net income to net cash from operating activities
                                                            
        depreciation and amortization
                   1,126,000,000                                570,000,000         
        deferred income taxes and investment tax credits
                   89,000,000                                         
        bad debt expense
                   50,000,000                                54,000,000  51,000,000    37,000,000   
        postretirement benefits contributions
                   -12,000,000                                -262,000,000  -51,000,000    -184,000,000   
        gain from sale of enerbank
                   -5,000,000                                         
        other non‑cash operating activities and reconciling adjustments
                   -93,000,000                                         
        net cash from discontinued operations
                                                            
        changes in assets and liabilities
                                                            
        accounts receivable and accrued revenue
                   -677,000,000                                         
        inventories
                   -450,000,000                                         
        accounts payable and accrued rate refunds
                   4,000,000                                         
        other current assets and liabilities
                   14,000,000                                         
        other non‑current assets and liabilities
                   -4,000,000                                         
        net cash from operating activities
                   855,000,000                                848,000,000  559,000,000    27,000,000   
        cash flows from investing activities
                                                            
        capital expenditures
                   -2,374,000,000                                -818,000,000  -792,000,000    -1,263,000,000   
        net proceeds from sale of enerbank
                   5,000,000                                         
        proceeds from sale of transmission equipment
                                                            
        cost to retire property and other investing activities
                   -107,000,000                                         
        net cash from investing activities
                   -2,476,000,000                                -935,000,000  -839,000,000    658,000,000   
        cash flows from financing activities
                                                            
        proceeds from issuance of debt
                   1,899,000,000                                         
        retirement of debt
                   -106,000,000                                         
        increase in notes payable
                   20,000,000                                40,000,000         
        issuance of common stock
                   69,000,000                                9,000,000  9,000,000    15,000,000   
        issuance of preferred stock, net of issuance costs
                                                            
        payment of dividends on common and preferred stock
                   -546,000,000                                         
        debt prepayment costs
                                                            
        proceeds from the sale of membership interest in vie to tax equity investor
                   49,000,000                                         
        contribution from noncontrolling interest
                   2,000,000                                         
        other financing costs
                   -60,000,000                                         
        net cash from financing activities
                   1,327,000,000                                -35,000,000  145,000,000    -690,000,000   
        accounts receivable and accrued revenue, less allowance of 26 in 2022 and 20 in 2021
                    1,161,000,000                                        
        current portion of long-term debt, finance leases, and other financing
                    1,000,000,000 674,000,000 382,000,000 382,000,000 585,000,000 589,000,000 1,506,000,000 1,506,000,000 1,799,000,000 1,744,000,000 1,721,000,000 1,130,000,000 1,074,000,000 1,077,000,000 842,000,000                          
        non-current portion of finance leases and other financing
                    70,000,000 44,000,000 46,000,000 46,000,000 48,000,000 50,000,000 51,000,000 56,000,000 61,000,000 67,000,000 71,000,000 76,000,000 81,000,000 86,000,000 91,000,000                          
        accounts receivable and accrued revenue, less allowance of 24 in 2022 and 20 in 2021
                     991,000,000                                       
        accounts receivable and accrued revenue, less allowance of 20 in both periods
                      1,042,000,000           749,000,000 997,000,000  710,000,000 708,000,000                       
        accounts receivable and accrued revenue, less allowance of 20 in 2021 and 29 in 2020
                       931,000,000                                     
        assets held for sale
                       19,000,000 494,000,000 448,000,000        40,000,000 39,000,000                          
        liabilities held for sale
                        1,233,000,000 990,000,000                                   
        cumulative preferred stock, series c, authorized 9.2 depositary shares in 2021; outstanding 9.2 depositary shares in 2021
                       224,000,000 224,000,000                                    
        accounts receivable and accrued revenue, less allowance of 24 in 2021 and 29 in 2020
                        713,000,000                                    
        accrued gas revenue
                        5,000,000      1,000,000  6,000,000 10,000,000 18,000,000 16,000,000                         
        accounts receivable and accrued revenue, less allowance of 27 in 2021 and 29 in 2020
                         745,000,000 839,000,000                                  
        notes receivable, less allowance of 29 in 2021 and 32 in 2020
                          284,000,000                                  
        accounts and notes receivable
                          2,445,000,000 2,631,000,000 21,000,000 20,000,000 25,000,000 2,281,000,000 2,253,000,000 2,005,000,000 1,791,000,000 1,645,000,000 1,393,000,000 1,246,000,000 1,183,000,000 1,187,000,000 1,177,000,000 1,125,000,000 1,092,000,000 1,098,000,000 1,034,000,000                
        accounts receivable and accrued revenue, less allowance of 29 in 2020 and 20 in 2019
                           863,000,000                                 
        notes receivable, less allowance of 32 in 2020 and 33 in 2019
                           275,000,000                                 
        accounts receivable and accrued revenue, less allowance of 30 in 2020 and 20 in 2019
                            648,000,000                                
        notes receivable, less allowance of 35 in 2020 and 33 in 2019
                            272,000,000 264,000,000                               
        other non-current assets
                                                            
        total other non-current assets
                            6,156,000,000 5,613,000,000 5,486,000,000  5,180,000,000 4,932,000,000 4,102,000,000 3,935,000,000 3,749,000,000 3,789,000,000 3,757,000,000 3,814,000,000 3,555,000,000 3,537,000,000 3,551,000,000 3,245,000,000 3,240,000,000                
        non-current liabilities
                                                            
        other non-current liabilities
                            429,000,000 413,000,000 395,000,000  373,000,000 364,000,000 345,000,000 294,000,000 295,000,000 305,000,000 307,000,000 307,000,000 308,000,000 289,000,000 295,000,000 301,000,000 314,000,000                
        total non-current liabilities
                            20,390,000,000 20,207,000,000 19,285,000,000  18,850,000,000 18,018,000,000 17,792,000,000 17,113,000,000 15,685,000,000 16,068,000,000 15,753,000,000 15,788,000,000 15,287,000,000 15,266,000,000 15,290,000,000 14,179,000,000 13,844,000,000                
        accounts receivable and accrued revenue, less allowance of 33 in 2020 and 20 in 2019
                             737,000,000                               
        accounts receivable and accrued revenue, less allowance of 22 in 2020 and 20 in 2019
                              884,000,000                              
        notes receivable, less allowance of 33 in both periods
                              241,000,000                              
        notes receivable held for sale
                               19,000,000     26,000,000  2,000,000 2,000,000 31,000,000 18,000,000 19,000,000 15,000,000 16,000,000                
        accounts receivable and accrued revenue, less allowances of 20 in both periods
                               886,000,000    964,000,000                         
        notes receivable, less allowances of 33 in 2019 and 24 in 2018
                               223,000,000                             
        accumulated deficit
                               -25,000,000 -83,000,000 -182,000,000 -166,000,000 -271,000,000 -278,000,000 -346,000,000               -1,945,000,000  -2,047,000,000      
        accounts receivable and accrued revenue, less allowance of 21 in 2019 and 20 in 2018
                                641,000,000                            
        notes receivable, less allowance of 33 in 2019 and 24 in 2018
                                234,000,000                            
        notes receivable, less allowance of 28 in 2019 and 24 in 2018
                                 249,000,000                           
        notes receivable, less allowance of 26 in 2019 and 24 in 2018
                                  250,000,000                          
        notes receivable, less allowances of 24 in 2018 and 20 in 2017
                                   233,000,000                         
        current portion of long-term debt, capital leases, and financing obligation
                                   996,000,000 1,971,000,000 1,216,000,000 1,286,000,000 1,103,000,000 980,000,000 840,000,000 812,000,000 918,000,000 950,000,000                
        non-current portion of capital leases and financing obligation
                                   69,000,000 75,000,000 81,000,000 86,000,000 91,000,000 97,000,000 99,000,000 104,000,000 110,000,000 114,000,000                
        notes receivable, less allowance of 23 in 2018 and 20 in 2017
                                    237,000,000 206,000,000                       
        accounts receivable and accrued revenue, less allowance of 19 in 2018 and 20 in 2017
                                      1,002,000,000                      
        notes receivable, less allowance of 21 in 2018 and 20 in 2017
                                      201,000,000                      
        accounts receivable and accrued revenue, less allowances of 20 in 2017 and 24 in 2016
                                       1,032,000,000                     
        notes receivable, less allowances of 20 in 2017 and 16 in 2016
                                       198,000,000                     
        accounts receivable and accrued revenue, less allowance of 22 in 2017 and 24 in 2016
                                        631,000,000 666,000,000                   
        notes receivable, less allowance of 19 in 2017 and 16 in 2016
                                        197,000,000                    
        notes receivable, less allowance of 18 in 2017 and 16 in 2016
                                         193,000,000                   
        accounts receivable and accrued revenue, less allowance of 24 for both periods
                                          775,000,000                  
        notes receivable, less allowance of 17 in 2017 and 16 in 2016
                                          186,000,000                  
        accounts receivable and accrued revenue, less allowances of 27 in 2016 and 28 in 2015
                                           603,000,000                 
        notes receivable, less allowances of 10 in 2016 and 9 in 2015
                                           142,000,000 135,000,000                
        accounts receivable and accrued revenue, less allowances of 29 in 2016 and 28 in 2015
                                            730,000,000                
        assets1
                                                            
        cash equivalents
                                             52,000,000 218,000,000  100,100,000,000 339,339,000,000 485,485,000,000          
        restricted cash equivalents
                                             52,000,000 32,000,000  1,414,000,000 1,313,000,000 1,313,000,000          
        cms energy common stock
                                                2,929,000,000 3,030,000,000 3,030,000,000          
        nonqualified deferred compensation plan assets
                                             9,000,000 7,000,000  66,000,000 55,000,000 55,000,000          
        db serp
                                                            
        mutual funds
                                             147,000,000 134,000,000  137,137,000,000 137,137,000,000 141,141,000,000          
        derivative instruments
                                                            
        commodity contracts
                                             3,000,000 6,000,000  9,000,000 12,000,000 1,000,000          
        total
                                             264,000,000 397,000,000  26,625,727,000,000 507,495,210,000,000 646,645,000,000          
        liabilities1
                                                            
        nonqualified deferred compensation plan liabilities
                                             9,000,000 7,000,000  66,000,000 55,000,000 55,000,000          
        september 30
                                             2,015,000,000               
        cms energy, including consumers
                                                            
        balance at beginning of period
                                             3,000,000               
        total gains offset through regulatory accounting
                                              1,000,000              
        purchases
                                                            
        settlements
                                                            
        balance at end of period
                                             2,000,000 1,000,000              
        unrealized losses included in earnings relating to assets and liabilities still held at end of period1
                                             -1,000,000               
        consumers
                                                            
        june 30
                                              2,014,000,000              
        total losses included in earnings1
                                                            
        march 2014
                                               1,070,080,000,000             
        assets
                                                            
        liabilities
                                                            
        securities held to maturity
                                                1,010,000,000 1,010,000,000 99,000,000          
        notes receivable1
                                                597,629,000,000 543,582,000,000 541,576,000,000          
        long-term debt2
                                                76,008,354,000,000 74,328,278,000,000 74,528,656,000,000          
        long-term debt3
                                                46,335,046,000,000 43,184,731,000,000 43,275,002,000,000          
        deferred income taxes and investment tax credit
                                                   122,000,000  129,000,000    -221,000,000   
        postretirement benefits expense
                                                   181,000,000  144,000,000    131,000,000   
        electric sales contract termination
                                                         279,000,000   
        asset impairment charges
                                                            
        allowance for equity funds used during construction
                                                   -26,000,000         
        capital lease and other amortization
                                                   42,000,000  36,000,000    55,000,000   
        gain due to expiration of indemnification
                                                   -50,000,000         
        gain on sale of assets
                                                   -8,000,000         
        gain on extinguishment of long-term debt
                                                   -10,000,000         
        loss (income) from equity method investees
                                                   2,000,000         
        cash distributions from equity method investees
                                                     4,000,000    18,000,000   
        electric sales contract termination payment
                                                     -275,000,000       
        shareholder class action settlement payment
                                                         -125,000,000   
        changes in other assets and liabilities:
                                                            
        increase in accounts receivable and accrued revenues
                                                   -91,000,000         
        decrease (increase) in accrued power supply and gas revenue
                                                   -41,000,000  35,000,000    99,000,000   
        decrease (increase) in inventories
                                                   86,000,000         
        decrease in accounts payable
                                                   -50,000,000  -5,000,000       
        decrease in accrued expenses
                                                   -6,000,000         
        decrease in other current and non-current assets
                                                   59,000,000  12,000,000       
        increase in current and non-current regulatory liabilities
                                                   102,000,000         
        decrease in other current and non-current liabilities
                                                   -66,000,000  -10,000,000       
        cost to retire property
                                                   -49,000,000  -34,000,000    -28,000,000   
        proceeds from nuclear decommissioning trust funds
                                                         333,000,000   
        proceeds from sale of assets
                                                   7,000,000  3,000,000    1,717,000,000   
        cash relinquished from sale of assets
                                                         -113,000,000   
        decrease in restricted cash and cash equivalents
                                                   4,000,000         
        increase in non-current notes receivable
                                                   -83,000,000  -19,000,000       
        other investing activities
                                                   4,000,000         
        proceeds from issuance of notes, bonds, and other long-term debt
                                                   1,218,000,000         
        proceeds from enerbank notes
                                                   39,000,000         
        retirement of bonds and other long-term debt, including related parties
                                                   -1,120,000,000         
        payments on securitization bonds
                                                   -34,000,000         
        redemption of preferred stock
                                                   -4,000,000  -1,000,000    -32,000,000   
        payment of common stock dividends
                                                   -114,000,000  -82,000,000    -45,000,000   
        payment of preferred stock dividends
                                                   -11,000,000  -13,000,000    -11,000,000   
        payment of capital lease and finance lease obligations
                                                   -23,000,000         
        debt issuance costs, financing fees, and other
                                                   -35,000,000  -8,000,000    -17,000,000   
        effect of exchange rates on cash
                                                         2,000,000   
        changes in cash and cash equivalents included in assets held for sale
                                                   5,000,000         
        net decrease in cash and cash equivalents
                                                   -122,000,000  -135,000,000       
        cash and cash equivalents, beginning of period
                                                   207,000,000  348,000,000    351,000,000   
        cash and cash equivalents, end of period
                                                   90,000,000  213,000,000    348,000,000   
        other cash flow activities and non-cash investing and financing activities were:
                                                            
        cash transactions
                                                            
        interest paid
                                                   422,000,000  364,000,000    432,000,000   
        income taxes paid
                                                   17,000,000  3,000,000    14,000,000   
        non-cash transactions
                                                            
        other assets placed under capital lease
                                                   16,000,000  5,000,000    229,000,000   
        plant and property
                                                            
        electric utility
                                                    9,235,000,000  8,885,000,000 8,695,000,000 8,651,000,000  7,945,000,000  
        gas utility
                                                    3,667,000,000  3,598,000,000 3,511,000,000 3,492,000,000  3,327,000,000  
        enterprises
                                                    395,000,000  392,000,000 392,000,000 391,000,000  391,000,000  
        less accumulated depreciation, depletion and amortization
                                                    4,462,000,000  4,360,000,000 4,294,000,000 4,245,000,000  4,117,000,000  
        accounts receivable and accrued revenue, less allowances of 31 in 2009 and 26 in 2008
                                                    701,000,000        
        notes receivable
                                                    87,000,000  99,000,000 75,000,000   80,000,000  
        accrued power supply and gas revenue
                                                    2,000,000      104,000,000  
        regulatory assets — postretirement benefits
                                                    19,000,000  19,000,000 19,000,000 19,000,000  19,000,000  
        prepayments and other
                                                    25,000,000  39,000,000 31,000,000 35,000,000  51,000,000  
        non-current assets
                                                            
        securitized costs
                                                    392,000,000  429,000,000 443,000,000 454,000,000  479,000,000  
        customer choice act
                                                    68,000,000  104,000,000 121,000,000 135,000,000  158,000,000  
        notes receivable, less allowances of 5 in 2009 and 34 in 2008
                                                    196,000,000        
        capitalization
                                                            
        preferred stock of subsidiary
                                                    44,000,000  44,000,000 44,000,000 44,000,000  44,000,000  
        preferred stock
                                                    243,000,000  249,000,000 249,000,000 250,000,000  250,000,000  
        long-term debt — related parties
                                                    34,000,000  178,000,000 178,000,000 178,000,000  178,000,000  
        non-current portion of capital and finance lease obligations
                                                    197,000,000      226,000,000  
        current portion of long-term debt, capital and finance lease obligations
                                                    604,000,000  649,000,000 517,000,000 856,000,000    
        cost of removal
                                                    1,227,000,000        
        income taxes
                                                    532,000,000  561,000,000 572,000,000 575,000,000  554,000,000  
        asset retirement obligation
                                                    211,000,000  204,000,000 202,000,000 200,000,000  97,000,000  
        total stockholders’ investment and liabilities
                                                    15,277,000,000  14,077,000,000 13,890,000,000 14,242,000,000  14,304,000,000  
        depreciation and amortization, net of nuclear decommissioning of -, 4, and 6
                                                     589,000,000       
        minority interests (obligations)
                                                     7,000,000       
        asset impairment charges, net of insurance recoveries
                                                         204,000,000   
        shareholder class action settlement expense
                                                            
        fuel costs mark-to-market at the mcv partnership
                                                            
        regulatory return on capital expenditures
                                                     -33,000,000    -31,000,000   
        gain on the sale of assets
                                                     -9,000,000    112,000,000   
        earnings from equity method investees
                                                     -5,000,000    -40,000,000   
        decrease (increase) in accounts receivable and accrued revenues
                                                     -80,000,000    -451,000,000   
        increase in inventories
                                                     -71,000,000    -10,000,000   
        increase in accrued expenses
                                                     -31,000,000    -31,000,000   
        decrease in the mcv partnership gas supplier funds on deposit
                                                            
        increase in other current and non-current regulatory liabilities
                                                     -178,000,000       
        restricted cash and restricted short-term investments
                                                     1,000,000    49,000,000   
        investments in nuclear decommissioning trust funds
                                                         -1,000,000   
        maturity of the mcv partnership restricted investment securities held-to-maturity
                                                            
        purchase of the mcv partnership restricted investment securities held-to-maturity
                                                            
        other investing
                                                     2,000,000       
        proceeds from notes, bonds, and other long-term debt
                                                     1,396,000,000    515,000,000   
        retirement of bonds and other long-term debt
                                                     -1,130,000,000    -1,095,000,000   
        payment of capital lease and financial lease obligations
                                                     -26,000,000    -20,000,000   
        construction work-in-progress
                                                      446,000,000 557,000,000 463,000,000  381,000,000  
        cash and cash equivalents at cost, which approximates market
                                                      162,000,000 527,000,000 841,000,000  1,245,000,000  
        restricted cash at cost, which approximates market
                                                      31,000,000 28,000,000 123,000,000  48,000,000  
        accounts receivable and accrued revenue, less allowances of 20 in 2008 and 21 in 2007
                                                      638,000,000      
        accrued power supply revenue
                                                      4,000,000 2,000,000 4,000,000    
        accounts receivable — related parties
                                                      1,000,000 2,000,000 1,000,000    
        notes receivable, less allowances of 30 in 2008 and 31 in 2007
                                                      180,000,000      
        stockholders’ investment and liabilities
                                                          2,007,000,000  
        non-current portion of capital lease obligations
                                                      212,000,000 216,000,000 221,000,000    
        minority interests
                                                      53,000,000 52,000,000 53,000,000  50,000,000  
        accounts payable — related parties
                                                            
        electric sales contract termination liability
                                                      2,000,000 3,000,000 4,000,000    
        argentine currency impairment reserve
                                                        197,000,000  197,000,000  
        regulatory liabilities for cost of removal
                                                      1,184,000,000 1,172,000,000 1,159,000,000  1,250,000,000  
        other regulatory liabilities
                                                      147,000,000 150,000,000 293,000,000  213,000,000  
        accounts receivable and accrued revenue, less allowances of 22 in 2008 and 21 in 2007
                                                       645,000,000     
        notes receivable, less allowances of 31 in 2008 and 2007
                                                       169,000,000     
        retained deficit
                                                       -2,106,000,000 -2,131,000,000  -2,070,000,000  
        accounts receivable, notes receivable and accrued revenue, less allowances of 21 in 2008 and 21 in 2007
                                                        920,000,000    
        notes receivable, less allowances of 31 in 2008 and 31 in 2007
                                                        167,000,000    
        adjustments to reconcile net income to net cash from operating activities depreciation and amortization, net of nuclear decommissioning of 4, 6, and 6
                                                         545,000,000   
        minority obligations
                                                         -10,000,000   
        increase in accounts payable
                                                         -45,000,000   
        increase in the mcv partnership gas supplier funds on deposit
                                                            
        decrease (increase) in other current and non-current assets
                                                         41,000,000   
        increase in other current and non-current liabilities
                                                         -131,000,000   
        purchases of available-for-sale serp investments
                                                         -68,000,000   
        proceeds from available-for-sale serp investments
                                                         64,000,000   
        proceeds from short-term investments
                                                            
        purchase of short-term investments
                                                            
        decrease (increase) in non-current notes receivable
                                                         -32,000,000   
        net increase in cash and cash equivalents
                                                         -3,000,000   
        accounts receivable and accrued revenue, less allowances of 20 in 2007 and 25 in 2006
                                                          531,000,000  
        accounts receivable and notes receivable — related parties
                                                          2,000,000  
        price risk management assets
                                                          4,000,000  
        nuclear decommissioning trust funds
                                                            
        notes receivable — related parties
                                                            
        current portion of long-term debt, capital and finance leases
                                                          997,000,000  
        legal settlement liability
                                                            
        price risk management liabilities
                                                          17,000,000  
        revenues
                                                           72,000,000 
        pretax income from discontinued operations
                                                           153,000,000 
        income tax expense
                                                           62,000,000 
        income from discontinued operations
                                                           91,000,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-06-30 2015-03-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-03-31 2012-09-30 2012-06-30 2012-03-31 2011-09-30 2011-06-30 2011-03-31 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 
                                                                      
          cash flows from operating activities
                                                                      
          net income
        277,000,000 242,000,000 272,000,000 193,000,000 295,000,000 255,000,000 247,000,000 182,000,000 263,000,000 251,000,000 173,000,000 190,000,000 194,000,000 163,000,000 163,000,000 142,000,000 345,000,000 634,000,000 183,000,000 171,000,000 342,000,000 162,000,000 210,000,000 137,000,000 243,000,000 168,000,000 207,000,000 94,000,000 213,000,000 109,000,000 169,000,000 140,000,000 241,000,000 -2,000,000 172,000,000 93,000,000 199,000,000 78,000,000 186,000,000 125,000,000 164,000,000 84,000,000 215,000,000 119,000,000 109,000,000 221,000,000 37,000,000 144,000,000  101,000,000 67,000,000 140,000,000     64,000,000 81,000,000 49,000,000 106,000,000 -214,909,000,000 84,000,000 
          adjustments to reconcile net income to net cash from operating activities
                                                                      
          depreciation and amortization
        412,000,000 342,000,000 288,000,000 288,000,000 388,000,000 326,000,000 273,000,000 273,000,000 368,000,000 310,000,000 262,000,000 255,000,000 353,000,000 296,000,000 243,000,000 242,000,000 345,000,000 282,000,000 250,000,000 242,000,000 340,000,000 281,000,000 228,000,000 223,000,000 316,000,000 263,000,000 215,000,000 216,000,000 298,000,000 244,000,000 206,000,000 204,000,000 279,000,000 229,000,000 193,000,000 197,000,000 262,000,000 214,000,000 183,000,000 176,000,000 238,000,000 168,000,000 220,000,000 152,000,000 149,000,000 197,000,000  181,000,000       121,000,000 173,000,000       
          deferred income taxes and investment tax credits
        82,000,000 31,000,000 47,000,000 64,000,000 60,000,000 39,000,000 24,000,000 28,000,000 51,000,000 61,000,000 25,000,000 42,000,000 29,000,000 31,000,000 19,000,000 6,000,000 33,000,000 139,000,000 35,000,000 27,000,000 48,000,000 30,000,000 45,000,000 28,000,000 67,000,000 61,000,000                                     
          other non‑cash operating activities and reconciling adjustments
        -55,000,000 -57,000,000 -37,000,000 -98,000,000 -46,000,000 -89,000,000 -45,000,000 -71,000,000 -36,000,000 -103,000,000 -49,000,000 -103,000,000 -19,000,000 -33,000,000 -27,000,000 -11,000,000 -22,000,000 1,000,000 -42,000,000 -12,000,000 -17,000,000                                          
          changes in assets and liabilities
                                                                      
          accounts receivable and accrued revenue
        -24,000,000 -365,000,000 34,000,000 85,000,000 -5,000,000 -340,000,000 32,000,000 126,000,000 27,000,000 -256,000,000 23,000,000 300,000,000 174,000,000 -420,000,000 -177,000,000 41,000,000 -121,000,000 -232,000,000                                             
          inventories
        148,000,000 106,000,000 -168,000,000 -156,000,000 190,000,000 113,000,000 -107,000,000 -101,000,000 259,000,000 122,000,000 -173,000,000 -155,000,000 391,000,000 187,000,000 -458,000,000 -392,000,000 213,000,000 92,000,000 -221,000,000 -132,000,000 168,000,000 62,000,000 -133,000,000 -72,000,000 171,000,000 93,000,000 -147,000,000 -111,000,000 209,000,000 90,000,000 -177,000,000 -127,000,000 228,000,000   -157,000,000 201,000,000 111,000,000 -163,000,000 -76,000,000 274,000,000 -141,000,000 374,000,000  -237,000,000 338,000,000  447,000,000               
          accounts payable and accrued rate refunds
        -137,000,000 202,000,000 -30,000,000 11,000,000 13,000,000 17,000,000 67,000,000 -69,000,000 -13,000,000 66,000,000 -36,000,000 -153,000,000 -21,000,000 -28,000,000 182,000,000 -129,000,000 69,000,000   -103,000,000 25,000,000 6,000,000 77,000,000 -54,000,000 13,000,000 -34,000,000 41,000,000 -89,000,000                                  
          other current assets and liabilities
        -63,000,000 -25,000,000 -14,000,000 76,000,000 41,000,000 45,000,000 -132,000,000 130,000,000 -1,000,000 35,000,000 -148,000,000 143,000,000 -51,000,000 -4,000,000 -99,000,000 110,000,000 7,000,000 43,000,000 -108,000,000                                            
          other non‑current assets and liabilities
        65,000,000 -22,000,000 -49,000,000 -49,000,000 64,000,000 34,000,000 -5,000,000 73,000,000 94,000,000 -24,000,000 20,000,000 29,000,000 122,000,000 -49,000,000 -28,000,000 32,000,000 41,000,000 -45,000,000 -5,000,000                                            
          net cash from operating activities
        705,000,000 478,000,000 343,000,000 414,000,000 1,000,000,000 403,000,000 304,000,000 707,000,000 956,000,000 405,000,000 199,000,000 665,000,000 1,040,000,000 188,000,000 -392,000,000 352,000,000 707,000,000 336,000,000 116,000,000 535,000,000 832,000,000 132,000,000 348,000,000 595,000,000 201,000,000 395,000,000 210,000,000 568,000,000 617,000,000 138,000,000 149,000,000 708,000,000 708,000,000 506,000,000 80,000,000 473,000,000 646,000,000 388,000,000 140,000,000 469,000,000 632,000,000 465,000,000 786,000,000 32,000,000 270,000,000 646,000,000 -700,000,000 725,000,000 -305,000,000 308,000,000 635,000,000 -21,000,000 375,000,000 841,000,000 197,000,000 606,000,000 376,000,000 -468,000,000 177,000,000 474,000,000  -517,000,000 
          cash flows from investing activities
                                                                      
          capital expenditures
        -1,039,000,000 -1,074,000,000 -978,000,000 -884,000,000 -888,000,000 -918,000,000 -806,000,000 -681,000,000 -613,000,000 -608,000,000 -612,000,000 -570,000,000 -617,000,000 -636,000,000 -650,000,000 -568,000,000 -520,000,000 -634,000,000 -564,000,000 -441,000,000 -437,000,000 -620,000,000 -751,000,000 -423,000,000 -523,000,000 -534,000,000 -597,000,000 -492,000,000 -481,000,000 -502,000,000 -700,000,000 -302,000,000 -232,000,000 -180,000,000 -281,000,000 -171,000,000 -185,000,000 -155,000,000  -145,000,000 
          free cash flows
        -334,000,000 -596,000,000 -635,000,000 -470,000,000 112,000,000 -515,000,000 -502,000,000 26,000,000 343,000,000 -203,000,000 -413,000,000 95,000,000 423,000,000 -448,000,000 -1,042,000,000 -216,000,000 187,000,000 -298,000,000 -448,000,000 94,000,000 395,000,000 -488,000,000 -403,000,000 172,000,000 -322,000,000 -139,000,000 -387,000,000 76,000,000 136,000,000 -364,000,000 -551,000,000 708,000,000 708,000,000 506,000,000 80,000,000 473,000,000 646,000,000 388,000,000 140,000,000 469,000,000 632,000,000 465,000,000 786,000,000 32,000,000 270,000,000 344,000,000 -700,000,000 725,000,000 -305,000,000 308,000,000 635,000,000 -21,000,000 375,000,000 841,000,000 -35,000,000 426,000,000 95,000,000 -639,000,000 -8,000,000 319,000,000  -662,000,000 
          cost to retire property and other investing activities
        -34,000,000 -38,000,000 -68,000,000 -78,000,000 -30,000,000 -35,000,000 -49,000,000 -52,000,000 -24,000,000 -41,000,000 -44,000,000 -48,000,000 -34,000,000 -32,000,000 -19,000,000 -32,000,000 -24,000,000 -37,000,000 -33,000,000 -32,000,000 -31,000,000 -27,000,000 -45,000,000 -35,000,000 -24,000,000 -29,000,000 -56,000,000 -20,000,000 -27,000,000 -44,000,000 -46,000,000                                
          net cash from investing activities
        -1,073,000,000 -1,112,000,000 -1,046,000,000 -962,000,000 -918,000,000 -953,000,000 -855,000,000 -609,000,000 -637,000,000 -649,000,000 -658,000,000 -1,428,000,000 -651,000,000 -668,000,000 -669,000,000 -600,000,000 -539,000,000 227,000,000 -609,000,000 -568,000,000 -283,000,000 -569,000,000 -1,130,000,000 -609,000,000 -559,000,000 -604,000,000 -802,000,000 -735,000,000 -675,000,000 -791,000,000 -807,000,000               -315,000,000         -244,000,000 -192,000,000 -301,000,000 -194,000,000 -192,000,000 -152,000,000  -85,000,000 
          cash flows from financing activities
                                                                      
          proceeds from issuance of debt
        258,000,000 1,098,000,000 62,000,000 1,249,000,000 1,200,000,000 515,000,000 743,000,000 105,000,000 599,000,000 646,000,000 500,000,000 1,200,000,000 1,205,000,000 550,000,000    35,000,000    826,000,000 1,155,000,000 1,198,000,000 75,000,000 621,000,000 462,000,000 993,000,000 1,723,000,000 250,000,000 544,000,000 250,000,000 525,000,000 185,000,000 923,000,000  446,000,000 299,000,000 30,000,000                      
          retirement of debt
        -204,000,000 -266,000,000 -43,000,000 -124,000,000 -717,000,000 -163,000,000 -356,000,000 -114,000,000 -319,000,000 -286,000,000 -381,000,000 -465,000,000 -1,000,000,000 -14,000,000 -89,000,000 -3,000,000 -217,000,000 -16,000,000 -2,000,000 -716,000,000 -902,000,000 -390,000,000 -2,000,000 -115,000,000 -66,000,000 -314,000,000 -790,000,000 -1,165,000,000 -45,000,000                                
          decrease in notes payable
          -65,000,000   -93,000,000    -20,000,000         -90,000,000   -30,000,000 -67,000,000                 -170,000,000                 
          issuance of common stock
        166,000,000 152,000,000 356,000,000 14,000,000 3,000,000 3,000,000 4,000,000 7,000,000 272,000,000 182,000,000 3,000,000 3,000,000 4,000,000 59,000,000 3,000,000 3,000,000 4,000,000         3,000,000 3,000,000 3,000,000 3,000,000 2,000,000 3,000,000 33,000,000 3,000,000 3,000,000 4,000,000 73,000,000 3,000,000 3,000,000 3,000,000 3,000,000 63,000,000       24,000,000       2,000,000 3,000,000 3,000,000 2,000,000 2,000,000 2,000,000  2,000,000 
          payment of dividends on common and preferred stock
        -178,000,000 -167,000,000 -165,000,000 -165,000,000 -166,000,000 -156,000,000 -156,000,000 -158,000,000 -156,000,000 -144,000,000 -145,000,000 -145,000,000 -145,000,000 -136,000,000 -137,000,000 -137,000,000 -136,000,000 -129,000,000 -127,000,000   -116,000,000 -117,000,000   -110,000,000 -108,000,000   -102,000,000 -101,000,000                                
          proceeds from the sale of membership interests in vies
         44,000,000                                                          
          other financing costs
        -26,000,000 -5,000,000 -27,000,000 -33,000,000 4,000,000 -6,000,000 -10,000,000 -9,000,000 -5,000,000 -4,000,000 -22,000,000 -23,000,000 -14,000,000 -10,000,000 -1,000,000 -35,000,000 -15,000,000 -18,000,000 -2,000,000 -18,000,000 23,000,000 -20,000,000 -32,000,000 -22,000,000 -11,000,000                                     
          net cash from financing activities
        16,000,000 817,000,000 210,000,000 947,000,000 266,000,000 261,000,000 229,000,000 -170,000,000 294,000,000 308,000,000 237,000,000 571,000,000 27,000,000 467,000,000 1,160,000,000 -130,000,000 -170,000,000 -323,000,000 437,000,000 -199,000,000 -210,000,000 64,000,000 -264,000,000 757,000,000 1,062,000,000 -67,000,000 691,000,000 234,000,000 150,000,000 462,000,000 523,000,000   39,000,000    18,000,000        -171,000,000  61,000,000       246,000,000 199,000,000 -24,000,000 297,000,000 -299,000,000 171,000,000  -44,000,000 
          net increase in cash and cash equivalents, including restricted amounts
        -352,000,000 183,000,000 -493,000,000 399,000,000 348,000,000 -289,000,000 -322,000,000 -72,000,000 613,000,000 64,000,000 -222,000,000 -192,000,000 416,000,000 -13,000,000 99,000,000 -378,000,000 -2,000,000 240,000,000 -56,000,000 -232,000,000 339,000,000 -373,000,000 -1,046,000,000 743,000,000 704,000,000  99,000,000 67,000,000 92,000,000  -135,000,000 274,000,000 23,000,000   -22,000,000 206,000,000                          
          cash and cash equivalents, including restricted amounts, beginning of period
        615,000,000 178,000,000 248,000,000 182,000,000 476,000,000 185,000,000 157,000,000 175,000,000 204,000,000 257,000,000                          
          cash and cash equivalents, including restricted amounts, end of period
        263,000,000 183,000,000 -493,000,000 399,000,000 526,000,000 -289,000,000 -322,000,000 -72,000,000 861,000,000 64,000,000 -222,000,000 -192,000,000 598,000,000 -13,000,000 99,000,000 -378,000,000 474,000,000 240,000,000 -56,000,000 -232,000,000 524,000,000 -373,000,000 -1,046,000,000 743,000,000 861,000,000 -276,000,000 99,000,000 67,000,000 267,000,000 -191,000,000 -135,000,000 274,000,000 227,000,000 31,000,000 -268,000,000 -22,000,000 463,000,000                          
          other cash flow activities and non‑cash investing and financing activities
                                                                      
          non‑cash transactions
                                                                      
          capital expenditures not paid
        601,000,000  49,000,000 222,000,000 315,000,000 130,000,000 128,000,000 103,000,000 156,000,000 -3,000,000 27,000,000 84,000,000 157,000,000 1,000,000 65,000,000 34,000,000 128,000,000   51,000,000 87,000,000 1,000,000 -27,000,000 72,000,000 95,000,000  -15,000,000 51,000,000 99,000,000  19,000,000 38,000,000 102,000,000  7,000,000 34,000,000 112,000,000  -19,000,000 5,000,000 173,000,000 31,000,000 117,000,000                    
          deemed contribution from sale of membership interest
        82,000,000                                                              
          bad debt expense
                                                              14,000,000 20,000,000       
          postretirement benefits contributions
                                                         -18,000,000 -19,000,000 -17,000,000   -219,000,000 -13,000,000 -13,000,000 -13,000,000 -13,000,000 -12,000,000   
          covert generating station acquisition
                                                                      
          proceeds from sale of asp business
                                                                    
          increase in notes payable
             65,000,000    -154,000,000 247,000,000                   -183,000,000                                 
          proceeds from the sale of membership interest in vie to tax equity investor
                 69,000,000                                                  
          contributions from noncontrolling interests
                                                                      
          distributions to noncontrolling interests
                                                                      
          other non‑cash investing and financing activities
                                                                      
          gain from sale of enerbank
                     -5,000,000                                              
          net proceeds from sale of enerbank
                     5,000,000                                              
          in millions
                                                                      
          years ended december 31
                                                                      
          cash transactions
                                                                      
          interest paid
                                                                      
          income taxes paid (proceeds from sale of renewable energy tax credits)
                                                                      
          net cash from discontinued operations
                         -88,000,000                                            
          issuance of preferred stock, net of issuance costs
                                                                     
          contribution from noncontrolling interest
                 6,000,000                                                
          income taxes paid
                                                                      
          covert generating facility acquisition
                  -2,000,000                                                    
          proceeds from sale of transmission equipment
                                 1,000,000                                     
          debt prepayment costs
                                                                      
          income taxes paid (refunds received)
                                                                      
          issuance of common stock, net of issuance costs
                         3,000,000 3,000,000 11,000,000 9,000,000 146,000,000 3,000,000 3,000,000 101,000,000                                      
          pension contributions
                              -531,000,000                                      
          accounts and notes receivable and accrued revenue
                           71,000,000 30,000,000 -230,000,000 88,000,000 147,000,000 -17,000,000 -252,000,000 107,000,000 251,000,000 -61,000,000 -284,000,000 1,000,000 291,000,000 7,000,000  31,000,000 117,000,000 37,000,000                          
          other current and non‑current assets and liabilities
                            24,000,000                                          
          increase in enerbank notes receivable
                            -76,000,000 -177,000,000 -332,000,000 -144,000,000 -4,000,000 -73,000,000 -158,000,000 -124,000,000 -46,000,000 -107,000,000 -120,000,000                                
          purchase of notes receivable by enerbank
                            -2,000,000 -2,000,000 -7,000,000 -8,000,000 -36,000,000 -87,000,000 -99,000,000 -121,000,000 -138,000,000                                 
          proceeds from sale of enerbank notes receivable
                            263,000,000                                          
          decrease in enerbank certificates of deposit
                            -73,000,000                                          
          payment of dividends on common stock
                            -126,000,000    -116,000,000    -108,000,000                                  
          cash from changes in assets and liabilities
                                                                      
          proceeds from db serp investments
                                                                     
          increase in enerbank certificates of deposit
                             -40,000,000 324,000,000 139,000,000 -7,000,000 9,000,000 251,000,000 220,000,000 151,000,000 225,000,000 152,000,000                                
          other non-cash operating activities and reconciling adjustments
                              4,000,000 11,000,000 9,000,000  -20,000,000 -7,000,000 16,000,000 -25,000,000 25,000,000 12,000,000 10,000,000 4,000,000 31,000,000 26,000,000 21,000,000                          
          other current and non-current assets and liabilities
                              -100,000,000 44,000,000 -3,000,000  -147,000,000 67,000,000 -12,000,000 42,000,000 -100,000,000           96,000,000 3,000,000  -22,000,000 49,000,000  47,000,000               
          other non-cash investing and financing activities
                                                                      
          non-cash transactions
                                                                      
          net decrease in cash and cash equivalents, including restricted amounts
                                                                      
          deferred income taxes and investment tax credit
                                   17,000,000 43,000,000 92,000,000 30,000,000 23,000,000 37,000,000 219,000,000 66,000,000 42,000,000 90,000,000 45,000,000 92,000,000 59,000,000 68,000,000 -15,000,000 39,000,000 -2,000,000 20,000,000 46,000,000  87,000,000       45,000,000 49,000,000 12,000,000 34,000,000 16,000,000 67,000,000  49,000,000 
          payment of finance lease obligations and other financing costs
                                   3,000,000 -32,000,000                                  
          proceeds from the sale of enerbank notes receivable
                                         31,000,000 19,000,000                          
          payment of capital lease obligations and other financing costs
                                     -2,000,000 -16,000,000                                
          accounts payable and accrued refunds
                                      -5,000,000                                
          decrease (increase) in enerbank notes receivable
                                            14,000,000                          
          jackson plant acquisition
                                                                      
          net increase in enerbank certificates of deposit
                                         7,000,000                             
          change in notes payable
                                                                      
          retirement of long-term debt
                                                     -11,000,000                 
          note receivable recorded for future refund of use taxes paid and capitalized
                                                                      
          proceeds from issuance of long-term debt
                                                      -475,000,000 250,000,000               
          other non-cash operating activities
                                              21,000,000 12,000,000 21,000,000 16,000,000 17,000,000 22,000,000 16,000,000 16,000,000  19,000,000               
          accounts receivable, notes receivable, and accrued revenue
                                              -46,000,000 81,000,000 16,000,000     -303,000,000                 
          proceeds from enerbank certificates of deposit
                                              52,000,000 -2,000,000 14,000,000                      
          net increase in cash and cash equivalents
                                              -46,000,000   -28,000,000 354,000,000 102,000,000 -80,000,000 160,000,000  493,000,000       199,000,000 613,000,000  -365,000,000 -314,000,000 493,000,000  -646,000,000 
          cash and cash equivalents, beginning of period
                                              266,000,000 71,000,000 18,000,000 -3,000,000 93,000,000       213,000,000 348,000,000  
          cash and cash equivalents, end of period
                                              -46,000,000 208,000,000 177,000,000 -28,000,000 425,000,000 102,000,000 -80,000,000 178,000,000  586,000,000       199,000,000 826,000,000 51,000,000 -365,000,000 -314,000,000 841,000,000  -646,000,000 
          refund of capitalized sales and use tax not received
                                                                      
          adjustments to reconcile net income to net cash provided
                                                                      
          by operating activities
                                                                      
          postretirement benefits expense
                                                 22,000,000 23,000,000 6,000,000 6,000,000 6,000,000  47,000,000       45,000,000 46,000,000   45,000,000 31,000,000   
          cost to retire property
                                                     -14,000,000         -8,000,000 -17,000,000 -12,000,000 -10,000,000 -6,000,000 -6,000,000  -13,000,000 
          other investing activities
                                                   1,000,000 1,000,000 1,000,000                 
          stockholder contribution
                                                 150,000,000 2,000,000 165,000,000 150,000,000                 
          proceeds from government grant
                                                       69,000,000               
          payment of common and preferred stock dividends
                                                                      
          accounts payable
                                                     120,000,000 -5,000,000                
          accrued expenses
                                                     -43,000,000                 
          payment of common stock dividends
                                                     -135,000,000         -28,000,000 -29,000,000 -21,000,000 -20,000,000 -21,000,000 -20,000,000  -12,000,000 
          equity earnings of subsidiaries
                                                                      
          dividends received from subsidiaries
                                                                      
          deferred income taxes
                                                                      
          accounts and notes receivable
                                                                      
          accrued taxes
                                                                      
          investment in subsidiaries
                                                                      
          debt issuance costs and financing fees
                                                                      
          deferred property taxes
                                                                      
          redemption of preferred stock
                                                                     
          proceeds from enerbank notes
                                                                      
          •
                                                                      
          cms energy, including consumers
                                                                      
          nine months ended september 30
                                                                      
          • net income
                                                             135,000,000         
          • non-cash transactions
                                                                      
          • sale of gas purchased in prior year
                                                                      
          • purchase of gas in current year
                                                                      
          • electric sales contract termination payment
                                                                      
          • accounts receivable sales
                                                                      
          • pension contribution
                                                                      
          • change in other core working capital
                                                                      
          • other changes in assets and liabilities
                                                             -33,000,000         
          non-cash transactions1
                                                         253,000,000 280,000,000 262,000,000           
          decrease in core working capital2
                                                         -31,000,000 322,000,000            
          other changes in assets and liabilities
                                                         3,000,000 -15,000,000 -137,000,000           
          consumers
                                                                      
          six months ended june 30
                                                                      
          costs to retire property and other
                                                                      
          1
                                                                      
          sale of gas purchased in the prior year
                                                                     
          purchase of gas in the current year
                                                           -330,000,000           
          accounts receivable sales
                                                                      
          change in other core working capital2
                                                           61,000,000           
          cash effect of deconsolidation of partnerships
                                                                      
          increase in enerbank loans receivable
                                                                      
          2
                                                                      
          • non-cash transactions1
                                                             296,000,000         
          • sale of gas purchased in the prior year
                                                             477,000,000         
          • change in other core working capital2
                                                             -15,000,000         
          • postretirement benefits contributions
                                                             -19,000,000         
          operating revenue
                                                                      
          income
                                                                      
          average common shares outstanding
                                                                      
          earnings from continuing operations per average common share
                                                                      
          cms energy — basic
                                                                      
          - diluted
                                                                      
          earnings per average common share
                                                                      
          cash from operations
                                                                      
          capital expenditures, excluding assets placed under capital lease
                                                                      
          total assets
                                                                    14,181,696,000,000  
          long-term debt, excluding current portion
                                                                      
          non-current portion of capital and finance lease obligations
                                                                      
          total preferred stock
                                                                      
          cash dividends declared per common share
                                                                      
          market price of common stock at year-end
                                                                      
          book value per common share at year-end
                                                                      
          number of employees at year-end
                                                                      
          electric utility statistics
                                                                      
          sales
                                                                      
          customers
                                                                      
          average sales rate per kwh
                                                                      
          gas utility statistics
                                                                      
          sales and transportation deliveries
                                                                      
          average sales rate per mcf
                                                                      
          net income from continuing operations per average common share
                                                                      
          net income per average common share
                                                                      
          long-term debt-related parties, excluding current portion
                                                                      
          net income attributable to cms energy
                                                              77,000,000 72,000,000       
          adjustments to reconcile net income attributable to cms energy to net cash from operating activities
                                                                      
          income attributable to noncontrolling interests
                                                              2,000,000 1,000,000       
          regulatory return on capital expenditures
                                                              -6,000,000 -7,000,000 -8,000,000 -9,000,000 -8,000,000 -8,000,000  -9,000,000 
          capital lease and other amortization
                                                              9,000,000 10,000,000 8,000,000 9,000,000 10,000,000 9,000,000  17,000,000 
          gain on indemnification
                                                                      
          gain on sale of assets
                                                                      
          gain on extinguishment of long-term debt — related parties
                                                                      
          increase in environmental remediation accrual
                                                                      
          income from equity method investees
                                                              1,000,000       
          electric sales contract termination payment
                                                                -275,000,000   
          changes in other assets and liabilities:
                                                                      
          decrease in accounts receivable and accrued revenue
                                                                      
          decrease in accrued power supply and gas revenue
                                                              4,000,000 1,000,000  -1,000,000 2,000,000 38,000,000   
          decrease in inventories
                                                              -299,000,000 566,000,000   -387,000,000 526,000,000   
          increase in accounts payable
                                                                      
          decrease in accrued expenses
                                                                 7,000,000 -25,000,000 -24,000,000   
          decrease in other current and non-current assets
                                                              75,000,000 35,000,000 -35,000,000 -81,000,000 65,000,000 63,000,000  -30,000,000 
          decrease in other current and non-current liabilities
                                                              4,000,000 -59,000,000 130,000,000 -28,000,000 -47,000,000 -65,000,000   
          proceeds for sale of assets
                                                                      
          restricted cash and cash equivalents
                                                              7,000,000 -1,000,000       
          other investing
                                                              -18,000,000 6,000,000 12,000,000 -11,000,000 -3,000,000 4,000,000  -11,000,000 
          retirement of bonds and other long-term debt, including related parties
                                                                      
          payment of preferred stock dividends
                                                              -3,000,000 -3,000,000 -3,000,000 -4,000,000 -3,000,000 -3,000,000  -2,000,000 
          payment of capital and finance lease obligations
                                                                      
          debt issuance costs, financing fees, and other
                                                              -15,000,000 -4,000,000 2,000,000 -5,000,000 -5,000,000   
          increase in accounts receivable and accrued revenues
                                                               -161,000,000    -58,000,000   
          decrease in accounts payable
                                                               -75,000,000 16,000,000   -35,000,000  -84,000,000 
          decrease in accrued taxes
                                                               -62,000,000    -65,000,000   
          increase in accrued expenses
                                                               9,000,000      -10,000,000 
          proceeds from notes, bonds, and other long-term debt
                                                               538,000,000 466,000,000 404,000,000 33,000,000 493,000,000  429,000,000 
          retirement of bonds and other long-term debt
                                                               -300,000,000 -462,000,000 -74,000,000 -304,000,000 -290,000,000  -437,000,000 
          payment of capital lease and financial lease obligations
                                                               -6,000,000 -8,000,000 -6,000,000 -6,000,000 -6,000,000  -6,000,000 
          depreciation and amortization, net of nuclear decommissioning of -, 4, and 6
                                                                      
          minority interests (obligations)
                                                                1,000,000 3,000,000 1,000,000 2,000,000  3,000,000 
          asset impairment charges, net of insurance recoveries
                                                                      
          electric sales contract termination
                                                                      
          shareholder class action settlement expense
                                                                      
          fuel costs mark-to-market at the mcv partnership
                                                                      
          gain on the sale of assets
                                                                -1,000,000     
          earnings from equity method investees
                                                                -2,000,000    40,036,000,000 
          cash distributions from equity method investees
                                                                2,000,000     1,000,000 
          shareholder class action settlement payment
                                                                      
          decrease (increase) in accounts receivable and accrued revenues
                                                                -258,000,000 -9,000,000    50,000,000 
          decrease (increase) in accrued power supply and gas revenue
                                                                     11,000,000 
          increase in inventories
                                                                322,000,000      
          decrease in the mcv partnership gas supplier funds on deposit
                                                                      
          increase in other current and non-current regulatory liabilities
                                                                      
          restricted cash and restricted short-term investments
                                                                     4,000,000 
          investments in nuclear decommissioning trust funds
                                                                     
          proceeds from nuclear decommissioning trust funds
                                                                     16,000,000 
          maturity of the mcv partnership restricted investment securities held-to-maturity
                                                                      
          purchase of the mcv partnership restricted investment securities held-to-maturity
                                                                      
          proceeds from sale of assets
                                                                2,000,000     80,000,000 
          cash relinquished from sale of assets
                                                                     
          increase in non-current notes receivable
                                                                      
          effect of exchange rates on cash
                                                                     
          net decrease in cash and cash equivalents
                                                                      
          other cash flow activities and non-cash investing and financing activities were:
                                                                      
          other assets placed under capital lease
                                                                      
          depreciation and amortization, net of nuclear decomissioning of - and 4
                                                                      
          postretirement benefits costs
                                                                      
          shareholder class action settlement
                                                                      
          decrease in deferred property taxes
                                                                      
          restricted cash
                                                                 -3,000,000 2,000,000 5,000,000   
          depreciation and amortization, net of nuclear decomissioning of - and 2
                                                                      
          asset impairment charges
                                                                      
          loss (earnings) from equity method investees
                                                                  1,000,000 1,000,000   
          deposit on pending asset sale
                                                                      
          depreciation and amortization, net of nuclear decomissioning of - and 1
                                                                   173,000,000   
          loss on the sale of assets
                                                                     -18,000,000 
          cumulative effect of change in accounting
                                                                      
          — diluted
                                                                      
          cumulative effect of change in accounting per average common share
                                                                      
          capital expenditures, excluding acquisitions and capital lease additions
                                                                      
          non-current portion of capital leases and finance lease obligations
                                                                      
          depreciation and amortization, net of nuclear decommissioning of 4 and 3
                                                                      
          pension contribution
                                                                      
          increase in other current and non-current liabilities
                                                                     -15,000,000 
          assets
                                                                      
          plant and property
                                                                      
          electric utility
                                                                      
          gas utility
                                                                      
          enterprises
                                                                      
          other
                                                                      
          less accumulated depreciation, depletion and amortization
                                                                      
          construction work-in-progress
                                                                      
          investments
                                                                      
          current assets
                                                                      
          cash and cash equivalents at cost, which approximates market
                                                                      
          restricted cash at cost, which approximates market
                                                                      
          accounts receivable and accrued revenue, less allowances of 20 in 2007 and 25 in 2006
                                                                      
          notes receivable
                                                                      
          accrued power supply and gas revenue
                                                                      
          accounts receivable and notes receivable — related parties
                                                                      
          inventories at average cost
                                                                      
          gas in underground storage
                                                                      
          materials and supplies
                                                                      
          generating plant fuel stock
                                                                      
          regulatory assets — postretirement benefits
                                                                      
          assets held for sale
                                                                      
          price risk management assets
                                                                      
          prepayments and other
                                                                      
          non-current assets
                                                                      
          regulatory assets
                                                                      
          securitized costs
                                                                      
          postretirement benefits
                                                                      
          customer choice act
                                                                      
          nuclear decommissioning trust funds
                                                                      
          notes receivable — related parties
                                                                      
          depreciation and amortization, net of nuclear decommissioning of 2 and 3
                                                                      
          increase in accrued taxes