7Baggers

The Southern Company
(NYSE:SO) 

SO stock logo

The Southern Company, through its subsidiaries, engages in the generation, transmission, and distribution of electricity. It operates in four segments: Gas Distribution Operations, Gas Pipeline Investments, Wholesale Gas Services, and Gas Marketing Services. The company also constructs, acquires, ow...

Founded: 1945
Full Time Employees: 27,943
Sector: Utilities
Industry: Utilities-Regulated Electric

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At a glance:
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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 2023-09-30 2023-06-30 2023-03-31 2022-09-30 2022-06-30 2022-03-31 2021-09-30 2021-06-30 2021-03-31 2020-09-30 2020-06-30 2020-03-31 2019-09-30 2019-06-30 2018-09-30 2018-06-30 2018-03-31 2017-09-30 2017-06-30 2017-03-31 2016-09-30 2016-06-30 2016-03-31 2015-09-30 2015-06-30 2015-03-31 2014-09-30 2014-03-31 
                                         
      operating revenues:
                                         
      retail electric revenues
    4,640,000,000 4,266,000,000 5,707,000,000 4,758,000,000 4,601,000,000 3,997,000,000 5,366,000,000 4,486,000,000 3,941,000,000 5,139,000,000 3,859,000,000 3,599,000,000 5,961,000,000 4,789,000,000 3,613,000,000 4,551,000,000 3,599,000,000 3,342,000,000 4,243,000,000 3,182,000,000 3,078,000,000 4,512,000,000 3,540,000,000 4,605,000,000 3,740,000,000 3,568,000,000 4,615,000,000 3,777,000,000 3,394,000,000 4,808,000,000        
      wholesale electric revenues
    965,000,000 684,000,000 832,000,000 681,000,000 744,000,000 512,000,000 721,000,000 627,000,000 571,000,000 727,000,000 605,000,000 599,000,000 1,197,000,000 937,000,000 664,000,000 731,000,000 546,000,000 545,000,000 584,000,000 472,000,000 418,000,000 625,000,000 542,000,000 693,000,000 611,000,000 619,000,000 718,000,000 618,000,000 531,000,000 613,000,000        
      other electric revenues
    265,000,000 229,000,000 262,000,000 220,000,000 242,000,000 265,000,000 222,000,000 210,000,000 199,000,000 203,000,000 209,000,000 190,000,000 185,000,000 192,000,000 177,000,000 179,000,000 175,000,000 170,000,000 164,000,000 168,000,000 151,000,000 163,000,000 161,000,000 170,000,000 175,000,000 165,000,000 168,000,000 167,000,000 175,000,000 181,000,000 166,000,000 181,000,000 169,000,000 162,000,000 163,000,000 169,000,000  
      natural gas revenues
    2,191,000,000 1,492,000,000 734,000,000 979,000,000 1,839,000,000 1,236,000,000 682,000,000 831,000,000 1,707,000,000 689,000,000 852,000,000 1,875,000,000 857,000,000 1,083,000,000 2,058,000,000 623,000,000 677,000,000 1,694,000,000 477,000,000 636,000,000 1,249,000,000 498,000,000 689,000,000 492,000,000 706,000,000 1,607,000,000 532,000,000 684,000,000 1,530,000,000 518,000,000        
      other revenues
    336,000,000 310,000,000 288,000,000 335,000,000 349,000,000 331,000,000 283,000,000 309,000,000 228,000,000 222,000,000 223,000,000 217,000,000 178,000,000 205,000,000 136,000,000 154,000,000 201,000,000 159,000,000 152,000,000 162,000,000 122,000,000 197,000,000 166,000,000 199,000,000 395,000,000 413,000,000 168,000,000 184,000,000 141,000,000 144,000,000 99,000,000 11,000,000 11,000,000 13,000,000 11,000,000 12,000,000 653,000 
      total operating revenues
    8,397,000,000 6,981,000,000 7,823,000,000 6,973,000,000 7,775,000,000 6,341,000,000 7,274,000,000 6,463,000,000 6,646,000,000 6,980,000,000 5,748,000,000 6,480,000,000 8,378,000,000 7,206,000,000 6,648,000,000 6,238,000,000 5,198,000,000 5,910,000,000 5,620,000,000 4,620,000,000 5,018,000,000 5,995,000,000 5,098,000,000 6,159,000,000 5,627,000,000 6,372,000,000 6,201,000,000 5,430,000,000 5,771,000,000 6,264,000,000 4,459,000,000 3,965,000,000 5,401,000,000 4,337,000,000 4,183,000,000 5,339,000,000 350,854,000 
      operating expenses:
                                         
      fuel
    1,491,000,000 1,144,000,000 1,345,000,000 1,116,000,000 1,292,000,000 922,000,000 1,146,000,000 1,032,000,000 996,000,000 1,367,000,000 959,000,000 1,050,000,000 2,423,000,000 1,715,000,000 1,111,000,000 1,234,000,000 848,000,000 848,000,000 933,000,000 621,000,000 636,000,000 1,072,000,000 914,000,000 1,310,000,000 1,103,000,000 1,101,000,000 1,285,000,000 1,092,000,000 996,000,000 1,400,000,000 1,023,000,000 911,000,000 1,520,000,000 1,200,000,000 1,212,000,000 1,656,000,000 124,562,000 
      purchased power
    244,000,000 211,000,000 259,000,000 260,000,000 250,000,000 214,000,000 249,000,000 222,000,000 198,000,000 207,000,000 231,000,000 242,000,000 645,000,000 408,000,000 232,000,000 288,000,000 217,000,000 207,000,000 230,000,000 200,000,000 181,000,000 254,000,000 201,000,000 257,000,000 236,000,000 267,000,000 256,000,000 211,000,000 179,000,000 227,000,000 189,000,000 165,000,000 193,000,000 171,000,000 144,000,000 194,000,000  
      cost of natural gas
    926,000,000 553,000,000 116,000,000 255,000,000 674,000,000 344,000,000 98,000,000 149,000,000 605,000,000 102,000,000 199,000,000 898,000,000 294,000,000 452,000,000 1,095,000,000 129,000,000 231,000,000 583,000,000 71,000,000 144,000,000 439,000,000 79,000,000 191,000,000 104,000,000 228,000,000 720,000,000 134,000,000 232,000,000 719,000,000 133,000,000        
      cost of other sales
    181,000,000 165,000,000 156,000,000 167,000,000 199,000,000 204,000,000 166,000,000 167,000,000 131,000,000 126,000,000 128,000,000 127,000,000 92,000,000 114,000,000 69,000,000 71,000,000 103,000,000 82,000,000 72,000,000 74,000,000 55,000,000 114,000,000 84,000,000 120,000,000 279,000,000 289,000,000 90,000,000 114,000,000 88,000,000 84,000,000        
      other operations and maintenance
    1,653,000,000 2,118,000,000 1,643,000,000 1,685,000,000 1,619,000,000 1,996,000,000 1,662,000,000 1,409,000,000 1,472,000,000 1,424,000,000 1,489,000,000 1,482,000,000 1,547,000,000 1,558,000,000 1,516,000,000 1,446,000,000 1,438,000,000 1,372,000,000 1,286,000,000 1,203,000,000 1,296,000,000 1,292,000,000 1,316,000,000 1,404,000,000 1,559,000,000 1,451,000,000 1,287,000,000 1,301,000,000 1,329,000,000 1,411,000,000 1,099,000,000 1,106,000,000 1,097,000,000 1,100,000,000 1,122,000,000 1,021,000,000 52,715,000 
      depreciation and amortization
    1,420,000,000 1,471,000,000 1,422,000,000 1,323,000,000 1,286,000,000 1,218,000,000 1,210,000,000 1,182,000,000 1,145,000,000 1,143,000,000 1,112,000,000 1,111,000,000 922,000,000 913,000,000 892,000,000 896,000,000 891,000,000 871,000,000 889,000,000 873,000,000 857,000,000 760,000,000 755,000,000 787,000,000 783,000,000 769,000,000 767,000,000 754,000,000 716,000,000 695,000,000 569,000,000 541,000,000 528,000,000 500,000,000 487,000,000 514,000,000 51,457,000 
      taxes other than income taxes
    464,000,000 402,000,000 288,000,000 403,000,000 445,000,000 385,000,000 375,000,000 384,000,000 396,000,000 341,000,000 340,000,000 394,000,000 352,000,000 349,000,000 372,000,000 312,000,000 313,000,000 345,000,000 304,000,000 298,000,000 330,000,000 303,000,000 299,000,000 319,000,000 316,000,000 355,000,000 303,000,000 308,000,000 330,000,000 309,000,000 255,000,000 256,000,000 264,000,000 245,000,000 252,000,000 258,000,000 5,683,000 
      total operating expenses
    6,379,000,000 6,064,000,000 5,229,000,000 5,209,000,000 5,765,000,000 5,283,000,000 4,906,000,000 4,524,000,000 4,943,000,000 4,870,000,000 4,458,000,000 5,262,000,000 6,185,000,000 5,551,000,000 5,264,000,000 4,515,000,000 4,490,000,000 4,312,000,000 3,785,000,000 3,562,000,000 3,755,000,000 3,982,000,000 3,756,000,000 3,985,000,000 5,564,000,000 4,996,000,000 4,156,000,000 7,024,000,000 4,465,000,000 4,347,000,000 3,274,000,000 3,032,000,000 3,752,000,000 3,239,000,000 3,226,000,000 4,061,000,000 291,496,000 
      operating income
    2,018,000,000 917,000,000 2,594,000,000 1,764,000,000 2,010,000,000 1,058,000,000 2,368,000,000 1,939,000,000 1,703,000,000 2,110,000,000 1,290,000,000 1,218,000,000 2,193,000,000 1,655,000,000 1,384,000,000 1,723,000,000 708,000,000 1,598,000,000 1,835,000,000 1,058,000,000 1,263,000,000 2,013,000,000 1,342,000,000 2,174,000,000 63,000,000 1,376,000,000 2,045,000,000 -1,594,000,000 1,306,000,000 1,917,000,000 1,185,000,000 933,000,000 1,649,000,000 1,098,000,000 957,000,000 1,278,000,000 59,358,000 
      yoy
    0.40% -13.33% 9.54% -9.03% 18.03% -49.86% 83.57% 59.20% -22.34% 27.49% -6.79% -29.31% 209.75% 3.57% -24.58% 62.85% -43.94% -20.62% 36.74% -51.33% 1904.76% 46.29% -34.38% -236.39% -95.18% -28.22% 72.57% -270.85% -20.80% 74.59% 23.82% -27.00% 2678.06%     
      qoq
    120.07% -64.65% 47.05% -12.24% 89.98% -55.32% 22.12% 13.86% -19.29% 63.57% 5.91% -44.46% 32.51% 19.58% -19.67% 143.36% -55.69% -12.92% 73.44% -16.23% -37.26% 50.00% -38.27% 3350.79% -95.42% -32.71% -228.29% -222.05% -31.87% 61.77% 27.01% -43.42% 50.18% 14.73% -25.12% 2053.04%  
      other income and
                                         
      allowance for equity funds used during construction
    121,000,000 97,000,000 90,000,000 80,000,000 73,000,000 68,000,000 58,000,000 51,000,000 58,000,000 66,000,000 70,000,000 65,000,000 59,000,000 53,000,000 51,000,000 49,000,000 45,000,000 46,000,000 38,000,000 35,000,000 34,000,000 33,000,000 31,000,000 36,000,000 32,000,000 30,000,000 18,000,000 58,000,000 57,000,000 52,000,000 45,000,000 53,000,000 60,000,000 39,000,000 63,000,000 63,000,000  
      earnings from equity method investments
    50,000,000 36,000,000 33,000,000 10,000,000 32,000,000 32,000,000 31,000,000 31,000,000 45,000,000 32,000,000 29,000,000 48,000,000 28,000,000 34,000,000 46,000,000 30,000,000 -40,000,000 45,000,000 33,000,000 30,000,000 42,000,000 39,000,000 33,000,000 36,000,000 31,000,000 41,000,000 32,000,000 28,000,000 39,000,000         
      interest expense, net of amounts capitalized
    -778,000,000 -895,000,000 -755,000,000 -874,000,000 -714,000,000 -693,000,000 -692,000,000 -694,000,000 -665,000,000 -620,000,000 -610,000,000 -582,000,000 -511,000,000 -488,000,000 -462,000,000 -451,000,000 -450,000,000 -450,000,000 -443,000,000 -444,000,000 -456,000,000 -434,000,000 -429,000,000 -458,000,000 -470,000,000 -458,000,000 -407,000,000 -424,000,000 -416,000,000 -374,000,000 -293,000,000 -246,000,000 -218,000,000 -180,000,000 -213,000,000 -207,000,000 -22,003,000 
      other income
    155,000,000 41,000,000 149,000,000 162,000,000 149,000,000 80,000,000 147,000,000 151,000,000 153,000,000 141,000,000 142,000,000 147,000,000 132,000,000 139,000,000 145,000,000 131,000,000 108,000,000 58,000,000 113,000,000 101,000,000 103,000,000 61,000,000 99,000,000 57,000,000 78,000,000 60,000,000 11,000,000 -3,000,000 -6,000,000 21,000,000 -29,000,000 -21,000,000 -21,000,000 -12,000,000 -8,000,000 -7,000,000 118,000 
      total other income and
    -452,000,000 -721,000,000 -483,000,000 -622,000,000 -460,000,000 -513,000,000 -456,000,000 -461,000,000 -409,000,000 -381,000,000 -369,000,000 -322,000,000 -292,000,000 -262,000,000 -220,000,000 -241,000,000 -344,000,000 -301,000,000 -259,000,000 -432,000,000 -277,000,000 -301,000,000 -266,000,000 -329,000,000 -329,000,000 -327,000,000 -346,000,000 -341,000,000 -326,000,000 -301,000,000 -277,000,000 -214,000,000 -179,000,000 -153,000,000 -158,000,000 -151,000,000 -21,885,000 
      earnings before income taxes
    1,566,000,000 196,000,000 2,111,000,000 1,142,000,000 1,550,000,000 545,000,000 1,912,000,000 1,478,000,000 1,294,000,000 1,729,000,000 921,000,000 896,000,000 1,901,000,000 1,393,000,000 1,164,000,000 1,482,000,000 364,000,000 1,297,000,000 1,576,000,000 626,000,000 986,000,000 1,712,000,000 1,076,000,000 1,845,000,000 -266,000,000 1,049,000,000 1,699,000,000 -1,935,000,000 980,000,000 1,616,000,000 908,000,000 719,000,000 1,470,000,000 945,000,000 799,000,000 1,127,000,000 37,473,000 
      income taxes
    228,000,000 -145,000,000 404,000,000 289,000,000 280,000,000 79,000,000 377,000,000 290,000,000 223,000,000 297,000,000 98,000,000 97,000,000 414,000,000 304,000,000 173,000,000 372,000,000 -12,000,000 190,000,000 293,000,000 5,000,000 145,000,000 367,000,000 145,000,000 623,000,000 -139,000,000 113,000,000 590,000,000 -587,000,000 315,000,000 448,000,000 272,000,000 222,000,000 500,000,000 302,000,000 274,000,000 392,000,000 3,186,000 
      consolidated net income
    1,338,000,000 341,000,000 1,707,000,000 853,000,000 1,270,000,000 466,000,000 1,535,000,000 1,188,000,000 1,071,000,000 1,432,000,000 823,000,000 799,000,000 1,487,000,000 1,089,000,000 991,000,000 1,110,000,000 376,000,000 1,107,000,000 1,283,000,000 621,000,000 841,000,000 1,345,000,000 931,000,000 1,222,000,000 -127,000,000 936,000,000 1,109,000,000 -1,348,000,000 665,000,000 1,168,000,000 636,000,000 497,000,000 970,000,000 643,000,000 525,000,000 735,000,000  
      net loss attributable to noncontrolling interests
    -18,000,000 -75,000,000 -4,000,000 -27,000,000 -64,000,000   -15,000,000 -58,000,000            -31,000,000                 
      consolidated net income attributable to southern company
    1,356,000,000 416,000,000 1,711,000,000 880,000,000 1,334,000,000 534,000,000 1,535,000,000 1,203,000,000 1,129,000,000 1,422,000,000 838,000,000 862,000,000 1,472,000,000 1,107,000,000 1,032,000,000 1,101,000,000 372,000,000 1,135,000,000 1,251,000,000 612,000,000 868,000,000 1,316,000,000 899,000,000 1,164,000,000 -154,000,000 938,000,000 1,069,000,000 -1,381,000,000 658,000,000 1,130,000,000 612,000,000 485,000,000      
      common stock data:
                                         
      earnings per share -
                                         
      basic
    1.21 0.38 1.55 0.8 1.21 0.49 1.4 1.1 1.03 1.3 0.77 0.79 1.36 1.04 0.97 1.04 0.35 1.07 1.18 0.58 0.82 1.26 0.86 1.14 -0.15 0.93 1.07 -1.38          
      diluted
    1.2 0.38 1.54 0.79 1.21 0.48 1.39 1.09 1.03 1.29 0.76 0.79 1.35 1.03 0.97 1.03 0.35 1.06 1.18 0.58 0.81 1.25 0.85 1.13 -0.15 0.92 1.06 -1.37          
      average number of shares of common stock outstanding
                                         
      basic
    1,124 1,102 1,101 1,100  1,097 1,096 1,094 1,092 1,092 1,091 1,082 1,065 1,063 1,061 1,061 1,060 1,058 1,058 1,057 1,048 1,044 1,023 1,014 1,011 1,003 998 993 968 934 916 910 909 910 898  
      diluted
    1,128 1,110 1,108 1,105  1,103 1,102 1,100 1,099 1,098 1,098 1,088 1,072 1,069 1,068 1,067 1,066 1,064 1,063 1,067 1,057 1,052 1,029 1,014 1,016 1,010 1,005 1,000 975 940 922 912 912 915 902  
      estimated loss on plant vogtle units 3 and 4
           -21,000,000  160,000,000   -70,000,000 52,000,000  264,000,000 460,000,000 48,000,000  149,000,000                  
      net income attributable to noncontrolling interests
         -18,250,000    10,000,000 -15,000,000 -63,000,000 12,000,000 -22,000,000 -45,000,000 5,000,000  -32,000,000 28,000,000 5,000,000  25,000,000 29,000,000 54,000,000 23,000,000 -6,000,000 30,000,000 22,000,000 -4,000,000 27,000,000 12,000,000 1,000,000      
      dividends on preferred stock of subsidiaries
                3,000,000 4,000,000 4,000,000 4,000,000 4,000,000 4,000,000 4,000,000 4,000,000 4,000,000 4,000,000 3,000,000               
      gain on dispositions
               -42,000,000 -20,000,000 -10,000,000 -23,000,000         -353,000,000              
      (gain) loss on dispositions
                   -125,000,000 -11,000,000 -44,000,000    -6,000,000 -8,000,000               
      impairment of leveraged leases
                    -7,000,000                     
      impairment charges
                         110,000,000  36,000,000              
      loss on dispositions
                        -39,000,000                 
      impairment of leveraged lease
                       -154,000,000                  
      estimated loss on plants under construction
                         4,000,000 4,000,000 1,000,000 1,060,000,000             
      dividends on preferred and preference stock of subsidiaries
                           4,000,000 4,000,000 4,000,000 10,000,000 11,000,000 11,000,000 11,000,000 12,000,000 11,000,000 11,000,000 14,000,000 17,000,000 17,000,000  
      cash dividends paid per share of common stock
                           0.6 0.6 0.58 0.58 0.58 0.56 0.56 0.56 0.543 0.543 0.543 0.525 0.525  
      earnings per share —
                                         
      basic
    1.21 0.38 1.55 0.8 1.21 0.49 1.4 1.1 1.03 1.3 0.77 0.79 1.36 1.04 0.97 1.04 0.35 1.07 1.18 0.58 0.82 1.26 0.86 1.14 -0.15 0.93 1.07 -1.38          
      diluted
    1.2 0.38 1.54 0.79 1.21 0.48 1.39 1.09 1.03 1.29 0.76 0.79 1.35 1.03 0.97 1.03 0.35 1.06 1.18 0.58 0.81 1.25 0.85 1.13 -0.15 0.92 1.06 -1.37          
      estimated loss on kemper igcc
                             44,000,000 34,000,000 3,012,000,000 108,000,000 88,000,000 81,000,000 53,000,000 150,000,000 23,000,000 9,000,000 418,000,000  
      less:
                                         
      earnings per share (eps) —
                                         
      basic eps
                                0.66 1.17 0.65 0.53 1.05 0.69 0.56 0.8  
      diluted eps
                                0.66 1.16 0.65 0.53 1.05 0.69 0.56 0.8  
      retail revenues
                                  3,748,000,000 3,377,000,000 4,701,000,000 3,714,000,000 3,542,000,000 4,558,000,000  
      wholesale revenues
                                  446,000,000 396,000,000 520,000,000 448,000,000 467,000,000 600,000,000  
      cost of sales
                                  58,000,000       
      consolidated net income after dividends on preferred and preference stock of subsidiaries
                                    959,000,000 629,000,000 508,000,000 718,000,000  
      earnings per share (eps) -
                                         
      wholesale revenues, non-affiliates
                                        277,868,000 
      wholesale revenues, affiliates
                                        72,333,000 
      purchased power, non-affiliates
                                        27,893,000 
      purchased power, affiliates
                                        29,186,000 
      net income
                                        34,287,000 
      yoy
                                         
      qoq
                                         
      less: net income attributable to noncontrolling interest
                                        816,000 
      net income attributable to southern power company
                                        33,471,000 
    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 2023-09-30 2023-06-30 2023-03-31 2022-09-30 2022-06-30 2022-03-31 2021-09-30 2021-06-30 2021-03-31 2020-09-30 2020-06-30 2020-03-31 2019-09-30 2019-06-30 2018-09-30 2018-06-30 2018-03-31 2017-09-30 2017-06-30 2017-03-31 2016-09-30 2016-06-30 2016-03-31 2015-06-30 2014-09-30 2014-03-31 
                                         
        current assets:
                                         
        cash and cash equivalents
      981,000,000 1,639,000,000 3,341,000,000 1,264,000,000 2,327,000,000 1,070,000,000 1,018,000,000 1,152,000,000 713,000,000 1,676,000,000 2,123,000,000 1,053,000,000 2,009,000,000 1,724,000,000 1,662,000,000 2,078,000,000 1,582,000,000 1,770,000,000 3,379,000,000 1,879,000,000 2,164,000,000 2,931,000,000 1,383,000,000 1,847,000,000 1,980,000,000 2,284,000,000 1,841,000,000 1,433,000,000 1,094,000,000 2,669,000,000 1,897,000,000 754,000,000 813,000,000 1,414,000,000 590,000,000 
        receivables —
                                         
        customer accounts
      2,405,000,000 2,251,000,000 2,304,000,000 2,301,000,000 2,463,000,000 2,228,000,000 2,327,000,000 2,239,000,000 2,191,000,000 2,230,000,000 1,852,000,000 1,890,000,000 2,223,000,000 2,277,000,000 2,006,000,000 1,831,000,000 1,683,000,000 1,716,000,000                  
        unbilled revenues
      740,000,000 931,000,000 685,000,000 895,000,000 684,000,000 825,000,000 556,000,000 876,000,000 620,000,000 547,000,000 682,000,000 596,000,000 593,000,000 807,000,000 638,000,000 535,000,000 643,000,000 544,000,000 503,000,000 553,000,000 522,000,000 591,000,000 583,000,000 738,000,000 769,000,000 777,000,000 595,000,000 593,000,000 589,000,000 639,000,000 590,000,000 380,000,000 579,000,000 476,000,000 382,000,000 
        under recovered fuel clause revenues
      299,000,000 316,000,000 517,000,000 684,000,000 707,000,000 713,000,000 689,000,000 689,000,000 701,000,000 757,000,000 728,000,000 484,000,000           69,000,000 105,000,000 159,000,000 156,000,000 62,000,000         
        other accounts and notes
      524,000,000 655,000,000 476,000,000 553,000,000 501,000,000 597,000,000 909,000,000 549,000,000 512,000,000 553,000,000 568,000,000 510,000,000 533,000,000 534,000,000 509,000,000 611,000,000 488,000,000 478,000,000                  
        accumulated provision for uncollectible accounts
      -95,000,000 -84,000,000 -79,000,000 -83,000,000 -81,000,000 -74,000,000 -64,000,000 -77,000,000 -78,000,000          -99,000,000 -89,000,000 -53,000,000               
        materials and supplies
      2,297,000,000 2,202,000,000 2,158,000,000 2,138,000,000 2,167,000,000 2,178,000,000 2,169,000,000 2,129,000,000 2,063,000,000 1,913,000,000 1,846,000,000 1,756,000,000 1,657,000,000 1,641,000,000 1,571,000,000 1,504,000,000 1,469,000,000 1,504,000,000 1,522,000,000 1,490,000,000 1,405,000,000 1,412,000,000 1,440,000,000 1,418,000,000 1,397,000,000 1,430,000,000 1,499,000,000 1,461,000,000 1,477,000,000 1,268,000,000      
        fossil fuel for generation
      727,000,000 735,000,000 682,000,000 740,000,000 738,000,000 803,000,000 799,000,000 935,000,000 995,000,000 829,000,000 883,000,000 778,000,000 526,000,000 431,000,000 411,000,000 386,000,000 475,000,000 494,000,000 506,000,000 609,000,000 577,000,000 437,000,000 435,000,000 390,000,000 462,000,000 565,000,000 571,000,000 624,000,000 687,000,000 664,000,000      
        natural gas for sale
      145,000,000 396,000,000 415,000,000 197,000,000 149,000,000 388,000,000 417,000,000 223,000,000 210,000,000 406,000,000 234,000,000 216,000,000 498,000,000 209,000,000 121,000,000 368,000,000 178,000,000 197,000,000 448,000,000 282,000,000 233,000,000 475,000,000 268,000,000 486,000,000 292,000,000 235,000,000 631,000,000 477,000,000 346,000,000 627,000,000      
        prepaid expenses
      411,000,000 327,000,000 324,000,000 482,000,000 441,000,000 294,000,000 391,000,000 422,000,000 474,000,000 321,000,000 504,000,000 626,000,000 373,000,000 528,000,000 739,000,000 329,000,000 538,000,000 657,000,000 299,000,000 502,000,000 667,000,000 279,000,000 543,000,000 354,000,000 398,000,000 432,000,000 365,000,000 361,000,000 401,000,000 459,000,000 563,000,000 486,000,000 564,000,000 387,000,000 525,000,000 
        assets from risk management activities, net of collateral
      35,000,000 63,000,000 56,000,000 70,000,000 134,000,000 39,000,000    36,000,000 51,000,000 53,000,000 289,000,000 247,000,000 405,000,000 365,000,000 175,000,000 100,000,000 135,000,000 120,000,000 134,000,000 116,000,000 107,000,000             
        regulatory assets – asset retirement obligations
      353,000,000 353,000,000 353,000,000 389,000,000 371,000,000 353,000,000 390,000,000 351,000,000 313,000,000 358,000,000 352,000,000 342,000,000 284,000,000 263,000,000 241,000,000 233,000,000 224,000,000 214,000,000 246,000,000 252,000,000 272,000,000 4,436,000,000 4,062,000,000             
        other regulatory assets
      706,000,000 709,000,000 793,000,000 732,000,000 699,000,000 804,000,000 877,000,000 980,000,000 1,066,000,000 996,000,000 930,000,000 936,000,000 746,000,000 641,000,000 576,000,000 792,000,000 728,000,000 788,000,000 813,000,000 846,000,000 876,000,000 657,000,000 607,000,000             
        other current assets
      433,000,000 424,000,000 602,000,000 439,000,000 517,000,000 476,000,000 562,000,000 525,000,000 763,000,000 544,000,000 310,000,000 395,000,000 322,000,000 212,000,000 201,000,000 282,000,000 184,000,000 232,000,000 210,000,000 190,000,000 179,000,000 208,000,000 138,000,000 232,000,000 172,000,000 286,000,000 209,000,000 206,000,000 249,000,000 168,000,000 71,000,000 90,000,000 76,000,000 47,000,000 70,000,000 
        total current assets
      9,961,000,000 10,917,000,000 12,627,000,000 10,801,000,000 11,817,000,000 10,694,000,000 11,040,000,000 10,993,000,000 10,543,000,000 11,088,000,000 10,979,000,000 9,555,000,000 10,363,000,000 9,781,000,000 9,297,000,000 9,674,000,000 9,551,000,000 9,469,000,000 10,574,000,000 9,069,000,000 9,430,000,000 9,917,000,000 8,352,000,000 9,384,000,000 11,619,000,000 9,524,000,000 9,202,000,000 8,837,000,000 8,427,000,000 9,658,000,000 15,149,000,000 5,461,000,000 6,605,000,000 6,258,000,000 5,140,000,000 
        property, plant, and equipment:
                                         
        in service
      149,086,000,000 146,114,000,000 143,189,000,000 140,888,000,000 138,749,000,000 137,143,000,000 134,889,000,000 134,354,000,000 129,228,000,000 125,573,000,000 119,852,000,000 118,690,000,000 116,236,000,000 117,418,000,000 116,259,000,000 114,166,000,000 112,783,000,000 111,579,000,000 108,831,000,000 107,320,000,000 105,931,000,000 103,529,000,000 103,428,000,000 100,672,000,000 99,626,000,000 104,499,000,000 102,014,000,000 101,021,000,000 99,774,000,000 94,174,000,000 78,112,000,000 76,553,000,000 71,462,000,000 68,545,000,000 66,369,000,000 
        less: accumulated depreciation
      45,186,000,000 43,483,000,000 42,793,000,000 41,703,000,000 40,909,000,000 40,126,000,000 39,536,000,000 38,995,000,000 38,347,000,000 37,199,000,000 36,500,000,000 35,990,000,000 34,922,000,000 35,203,000,000 34,645,000,000 33,723,000,000 33,240,000,000 32,887,000,000 32,099,000,000 31,477,000,000 31,180,000,000 30,469,000,000 30,693,000,000 30,739,000,000 30,255,000,000 31,920,000,000 31,164,000,000 30,667,000,000 30,330,000,000       
        plant in service, net of depreciation
      103,900,000,000 102,631,000,000 100,396,000,000 99,185,000,000 97,840,000,000 97,017,000,000 95,353,000,000 95,359,000,000 90,881,000,000 88,374,000,000 83,352,000,000 82,700,000,000 81,314,000,000 82,215,000,000 81,614,000,000 80,443,000,000 79,543,000,000 78,692,000,000 76,732,000,000 75,843,000,000 74,751,000,000 73,060,000,000 72,735,000,000 69,933,000,000 69,371,000,000 72,579,000,000 70,850,000,000 70,354,000,000 69,444,000,000 64,584,000,000 53,334,000,000 51,987,000,000 47,544,000,000 44,699,000,000 43,040,000,000 
        other utility plant
       307,000,000 331,000,000 363,000,000 378,000,000 410,000,000 426,000,000 450,000,000 483,000,000 522,000,000 546,000,000 571,000,000 602,000,000                  174,000,000 218,000,000 87,000,000 218,000,000 234,000,000 
        nuclear fuel, at amortized cost
      920,000,000 897,000,000 914,000,000 907,000,000 890,000,000 873,000,000 886,000,000 848,000,000 881,000,000 862,000,000 877,000,000 849,000,000 840,000,000 837,000,000 839,000,000 805,000,000 816,000,000 820,000,000 804,000,000 835,000,000 854,000,000 849,000,000 871,000,000 844,000,000 874,000,000 908,000,000 865,000,000 892,000,000 902,000,000 901,000,000 934,000,000 941,000,000 889,000,000 840,000,000 874,000,000 
        construction work in progress
      11,282,000,000 10,534,000,000 9,239,000,000 7,686,000,000 7,221,000,000 6,389,000,000 6,232,000,000 5,231,000,000 8,225,000,000 8,496,000,000 11,992,000,000 11,510,000,000 10,773,000,000 9,770,000,000 9,337,000,000 9,611,000,000 9,264,000,000 9,525,000,000 8,861,000,000 8,351,000,000 8,360,000,000 7,804,000,000 7,568,000,000 7,655,000,000 6,947,000,000 7,460,000,000 8,026,000,000 7,440,000,000 9,465,000,000 10,069,000,000 9,451,000,000 9,406,000,000 8,487,000,000 7,410,000,000 7,425,000,000 
        total property, plant, and equipment
      116,102,000,000 114,369,000,000 110,880,000,000 108,141,000,000 106,329,000,000 104,689,000,000 102,897,000,000 101,888,000,000 100,470,000,000 98,254,000,000 96,767,000,000 95,630,000,000 93,529,000,000 92,822,000,000 91,790,000,000 90,859,000,000 89,623,000,000 89,037,000,000 86,397,000,000 85,029,000,000 83,965,000,000 81,713,000,000 81,174,000,000 78,432,000,000 77,192,000,000 80,947,000,000 79,741,000,000 78,686,000,000 79,811,000,000 75,554,000,000 63,893,000,000 62,552,000,000 57,007,000,000 53,167,000,000 51,573,000,000 
        other property and investments:
                                         
        goodwill
      5,161,000,000 5,161,000,000 5,161,000,000 5,161,000,000 5,161,000,000 5,161,000,000 5,161,000,000 5,161,000,000 5,161,000,000 5,161,000,000 5,161,000,000 5,161,000,000 5,280,000,000 5,280,000,000 5,280,000,000 5,280,000,000 5,280,000,000 5,280,000,000 5,280,000,000 5,280,000,000 5,280,000,000 5,280,000,000 5,282,000,000 5,315,000,000 5,315,000,000 6,226,000,000 6,267,000,000 6,271,000,000 6,251,000,000 6,223,000,000 264,000,000     
        nuclear decommissioning trusts, at fair value
      2,888,000,000 2,947,000,000 2,884,000,000 2,762,000,000 2,611,000,000 2,621,000,000 2,650,000,000 2,549,000,000 2,512,000,000 2,207,000,000 2,298,000,000 2,245,000,000 2,031,000,000 2,150,000,000 2,403,000,000 2,446,000,000 2,457,000,000 2,346,000,000 2,109,000,000 2,014,000,000 1,787,000,000 1,965,000,000 1,942,000,000 1,872,000,000 1,829,000,000 1,827,000,000 1,783,000,000 1,722,000,000 1,678,000,000 1,616,000,000 1,578,000,000 1,540,000,000 1,572,000,000 1,510,000,000 1,513,000,000 
        equity investments in unconsolidated subsidiaries
      1,365,000,000 1,318,000,000 1,303,000,000 1,425,000,000 1,439,000,000 1,416,000,000 1,414,000,000 1,385,000,000 1,395,000,000 1,376,000,000 1,382,000,000 1,408,000,000 1,292,000,000 1,305,000,000 1,293,000,000 1,278,000,000 1,287,000,000 1,368,000,000 1,358,000,000 1,363,000,000 1,386,000,000 1,540,000,000 1,557,000,000 1,569,000,000 1,546,000,000 1,542,000,000 1,637,000,000 1,632,000,000 1,615,000,000 1,541,000,000      
        other intangible assets, net of amortization of 450 and 444, respectively
      294,000,000                                   
        miscellaneous property and investments
      706,000,000 714,000,000 696,000,000 699,000,000 690,000,000 668,000,000 657,000,000 684,000,000 673,000,000 651,000,000 618,000,000 616,000,000 590,000,000 576,000,000 633,000,000 586,000,000 494,000,000 463,000,000 403,000,000 379,000,000 407,000,000 394,000,000 505,000,000 258,000,000 247,000,000 250,000,000 236,000,000 230,000,000 293,000,000 249,000,000 230,000,000 488,000,000 232,000,000 245,000,000 224,000,000 
        total other property and investments
      10,414,000,000 10,440,000,000 10,352,000,000 10,363,000,000 10,225,000,000 10,198,000,000 10,223,000,000 10,129,000,000 10,100,000,000 9,772,000,000 9,845,000,000 9,827,000,000 9,608,000,000 9,736,000,000 10,044,000,000 10,620,000,000 10,553,000,000 10,496,000,000 10,302,000,000 10,194,000,000 10,178,000,000 10,528,000,000 10,649,000,000 10,482,000,000 10,427,000,000 11,474,000,000 11,613,000,000 11,566,000,000 11,552,000,000 11,340,000,000 3,325,000,000 2,789,000,000 2,555,000,000 2,435,000,000 2,407,000,000 
        deferred charges and other assets:
                                         
        operating lease right-of-use assets, net of amortization
      1,351,000,000 1,358,000,000 1,378,000,000 1,405,000,000 1,426,000,000 1,386,000,000 1,415,000,000 1,430,000,000 1,400,000,000 1,467,000,000 1,481,000,000 1,505,000,000 1,560,000,000 1,623,000,000 1,693,000,000 1,724,000,000 1,775,000,000 1,821,000,000 1,791,000,000 1,776,000,000 1,770,000,000 1,818,000,000 1,862,000,000             
        deferred charges related to income taxes
      1,026,000,000 948,000,000 911,000,000 899,000,000 895,000,000 889,000,000 874,000,000 874,000,000 888,000,000 889,000,000 892,000,000 876,000,000 854,000,000 843,000,000 833,000,000 815,000,000 806,000,000 803,000,000 799,000,000 797,000,000 798,000,000 796,000,000 794,000,000 792,000,000 789,000,000 818,000,000 1,318,000,000 1,325,000,000 1,647,000,000 1,590,000,000 1,580,000,000 1,572,000,000 1,533,000,000 1,488,000,000 1,448,000,000 
        prepaid pension costs
      3,369,000,000 3,257,000,000 2,982,000,000 2,881,000,000 2,781,000,000 2,674,000,000 2,375,000,000 2,279,000,000 2,184,000,000 2,574,000,000 2,478,000,000 2,384,000,000 2,019,000,000 1,893,000,000 1,772,000,000                   438,000,000 423,000,000 
        unamortized loss on reacquired debt
      183,000,000 187,000,000 191,000,000 195,000,000 199,000,000 203,000,000 208,000,000 212,000,000 216,000,000 224,000,000 229,000,000 234,000,000 243,000,000 248,000,000 257,000,000 263,000,000 269,000,000 274,000,000 285,000,000 290,000,000 297,000,000 307,000,000 313,000,000 328,000,000 333,000,000 203,000,000 210,000,000 215,000,000 218,000,000 228,000,000 220,000,000 220,000,000 234,000,000 274,000,000 286,000,000 
        deferred under recovered fuel clause revenues
      210,000,000  197,000,000 325,000,000 389,000,000  632,000,000 950,000,000 1,044,000,000 1,279,000,000 1,489,000,000 1,702,000,000 1,697,000,000                       
        regulatory assets – asset retirement obligations, deferred
      5,198,000,000 5,129,000,000 5,047,000,000 5,115,000,000 5,465,000,000 5,458,000,000 5,277,000,000 5,380,000,000 5,379,000,000 5,629,000,000 5,681,000,000 5,701,000,000 6,519,000,000 5,982,000,000 5,683,000,000 5,418,000,000 4,931,000,000 4,966,000,000 4,984,000,000 4,586,000,000 4,384,000,000               
        other regulatory assets, deferred
      7,683,000,000 7,427,000,000 7,361,000,000 7,338,000,000 7,187,000,000 7,037,000,000 7,531,000,000 6,353,000,000 6,318,000,000 5,666,000,000 5,806,000,000 5,886,000,000 6,121,000,000 5,448,000,000 5,372,000,000 6,902,000,000 7,092,000,000 7,263,000,000 6,502,000,000 6,606,000,000 6,763,000,000 6,289,000,000 5,835,000,000 6,196,000,000 6,302,000,000 6,948,000,000 6,718,000,000 6,668,000,000 6,748,000,000 6,446,000,000 5,460,000,000 4,957,000,000 4,763,000,000 2,624,000,000 2,654,000,000 
        other deferred charges and assets
      1,534,000,000 1,436,000,000 1,322,000,000 1,390,000,000 1,396,000,000 1,467,000,000 1,484,000,000 1,449,000,000 1,578,000,000 1,479,000,000 1,469,000,000 1,456,000,000 1,492,000,000 2,393,000,000 1,898,000,000 1,586,000,000 1,307,000,000 1,264,000,000 1,524,000,000 1,384,000,000 1,267,000,000 1,156,000,000 1,141,000,000 1,436,000,000 1,497,000,000 1,653,000,000 1,513,000,000 1,387,000,000 1,357,000,000 1,133,000,000 833,000,000 771,000,000 832,000,000 764,000,000 705,000,000 
        total deferred charges and other assets
      20,554,000,000 19,994,000,000 19,389,000,000 19,548,000,000 19,738,000,000 19,599,000,000 19,796,000,000 18,927,000,000 19,007,000,000 19,207,000,000 19,525,000,000 19,744,000,000 20,505,000,000 18,430,000,000 17,508,000,000 16,708,000,000 16,180,000,000 16,391,000,000 15,885,000,000 15,439,000,000 15,279,000,000 15,433,000,000 14,692,000,000 13,419,000,000 13,539,000,000 9,622,000,000 9,759,000,000 9,595,000,000 9,970,000,000 9,810,000,000 8,506,000,000 7,933,000,000 8,014,000,000 5,794,000,000 5,718,000,000 
        total assets
      157,031,000,000 155,720,000,000 153,248,000,000 148,853,000,000 148,109,000,000 145,180,000,000 143,956,000,000 141,937,000,000 140,120,000,000 138,321,000,000 137,116,000,000 134,756,000,000 134,005,000,000 130,769,000,000 128,639,000,000 127,861,000,000 125,907,000,000 125,393,000,000 123,158,000,000 119,731,000,000 118,852,000,000 117,591,000,000 114,867,000,000 111,717,000,000 112,777,000,000 111,567,000,000 110,315,000,000 108,684,000,000 109,760,000,000 106,362,000,000 90,873,000,000 78,735,000,000 74,181,000,000 67,654,000,000 64,838,000,000 
        liabilities and stockholders' equity
       2,025,000,000    2,024,000,000                              
        current liabilities:
                                         
        securities due within one year
      5,701,000,000 6,220,000,000 7,541,000,000 5,365,000,000 5,168,000,000 4,718,000,000 1,642,000,000 2,800,000,000 1,964,000,000 3,076,000,000 4,063,000,000 4,363,000,000 3,241,000,000 1,052,000,000 1,193,000,000 3,286,000,000 2,829,000,000 3,535,000,000 4,378,000,000 1,596,000,000 1,809,000,000 3,313,000,000 3,148,000,000 3,013,000,000 2,237,000,000 3,235,000,000 3,505,000,000 3,031,000,000 3,269,000,000 2,254,000,000 2,724,000,000 2,392,000,000 3,643,000,000 2,398,000,000 768,000,000 
        notes payable
      1,673,000,000 722,000,000 144,000,000 988,000,000 514,000,000 1,338,000,000 722,000,000 1,334,000,000 2,445,000,000 1,726,000,000 1,647,000,000 2,554,000,000 1,398,000,000 2,510,000,000 2,330,000,000 707,000,000 1,402,000,000 1,092,000,000 171,000,000 1,185,000,000 1,710,000,000 542,000,000 1,398,000,000 2,564,000,000 4,981,000,000 4,271,000,000 2,579,000,000 3,274,000,000 2,818,000,000 1,670,000,000 1,372,000,000 1,195,000,000 1,057,000,000 361,000,000 598,000,000 
        accounts payable
      2,909,000,000 3,710,000,000 3,017,000,000 2,948,000,000 3,094,000,000 3,701,000,000 3,950,000,000 2,445,000,000 2,154,000,000 2,942,000,000 2,493,000,000 2,365,000,000 3,079,000,000 2,908,000,000 2,251,000,000 2,229,000,000 2,075,000,000 2,058,000,000 1,924,000,000 1,787,000,000 1,653,000,000 1,898,000,000 1,978,000,000 2,246,000,000 2,162,000,000 2,089,000,000 2,353,000,000 1,920,000,000 1,750,000,000 1,732,000,000 1,493,000,000 1,584,000,000 1,395,000,000 1,381,000,000 1,386,000,000 
        customer deposits
      478,000,000 475,000,000 489,000,000 468,000,000 458,000,000 486,000,000 491,000,000 466,000,000 456,000,000 511,000,000 493,000,000 475,000,000 516,000,000 461,000,000 454,000,000 493,000,000 467,000,000 470,000,000 496,000,000 490,000,000 491,000,000 494,000,000 489,000,000 524,000,000 488,000,000 530,000,000 550,000,000 546,000,000 541,000,000 577,000,000 408,000,000 406,000,000 398,000,000 386,000,000 384,000,000 
        accrued taxes —
                                         
        accrued income taxes
      66,000,000 22,000,000 456,000,000 20,000,000 53,000,000 57,000,000 37,000,000 49,000,000 76,000,000 177,000,000 76,000,000 52,000,000 129,000,000 17,000,000 57,000,000 149,000,000 40,000,000 71,000,000 75,000,000 27,000,000 25,000,000 179,000,000 171,000,000    176,000,000 125,000,000 258,000,000 375,000,000 13,000,000 14,000,000 12,000,000 238,000,000 114,000,000 
        other accrued taxes
      557,000,000 982,000,000 966,000,000 800,000,000 600,000,000 997,000,000 985,000,000 722,000,000 503,000,000 862,000,000 627,000,000 435,000,000 882,000,000 635,000,000 415,000,000 797,000,000 589,000,000 412,000,000 742,000,000 517,000,000 338,000,000 689,000,000 501,000,000    690,000,000 490,000,000 326,000,000 641,000,000 398,000,000 240,000,000 391,000,000 558,000,000 243,000,000 
        accrued interest
      627,000,000 807,000,000 602,000,000 775,000,000 600,000,000 682,000,000 570,000,000 702,000,000 583,000,000 573,000,000 652,000,000 487,000,000 431,000,000 553,000,000 404,000,000 404,000,000 510,000,000 423,000,000 421,000,000 499,000,000 414,000,000 386,000,000 455,000,000 422,000,000 469,000,000 432,000,000 443,000,000 508,000,000 453,000,000 410,000,000 289,000,000 255,000,000 241,000,000 270,000,000 253,000,000 
        accrued compensation
      761,000,000 1,418,000,000 1,206,000,000 825,000,000 683,000,000 1,261,000,000 1,065,000,000 746,000,000 618,000,000 936,000,000 719,000,000 617,000,000 961,000,000 807,000,000 574,000,000 908,000,000 770,000,000 584,000,000 843,000,000 666,000,000 502,000,000 798,000,000 676,000,000 800,000,000 646,000,000 493,000,000 703,000,000 584,000,000 461,000,000 505,000,000 335,000,000 212,000,000 305,000,000 423,000,000 177,000,000 
        asset retirement obligations
      659,000,000 662,000,000 680,000,000 683,000,000 748,000,000 731,000,000 763,000,000 756,000,000 749,000,000 727,000,000 715,000,000 709,000,000 689,000,000 693,000,000 695,000,000 690,000,000 684,000,000 642,000,000 640,000,000 575,000,000 514,000,000 433,000,000 429,000,000          2,860,000,000 2,133,000,000 2,004,000,000 
        liabilities from risk management activities, net of collateral
      134,000,000 118,000,000 98,000,000 86,000,000 99,000,000 160,000,000 199,000,000 238,000,000 299,000,000 232,000,000 261,000,000 318,000,000                71,000,000 63,000,000 125,000,000      
        operating lease obligations
      203,000,000 197,000,000 198,000,000 200,000,000 200,000,000 200,000,000 197,000,000 193,000,000 184,000,000 181,000,000 195,000,000 199,000,000 191,000,000 232,000,000 245,000,000 246,000,000 245,000,000 244,000,000 235,000,000 235,000,000 230,000,000 229,000,000 228,000,000             
        natural gas cost over recovery
      131,000,000 158,000,000 163,000,000 107,000,000 16,000,000 193,000,000 226,000,000 171,000,000 150,000,000 165,000,000 161,000,000 117,000,000                        
        other regulatory liabilities
      228,000,000 240,000,000 196,000,000 264,000,000 422,000,000 369,000,000 214,000,000 135,000,000 169,000,000 163,000,000 268,000,000 287,000,000 440,000,000 557,000,000 711,000,000 555,000,000 416,000,000 462,000,000 616,000,000 558,000,000 701,000,000 318,000,000 304,000,000             
        other current liabilities
      1,191,000,000 1,157,000,000 970,000,000 1,041,000,000 1,115,000,000 1,100,000,000 1,104,000,000 1,271,000,000 1,108,000,000 943,000,000 870,000,000 915,000,000 844,000,000 1,062,000,000 1,105,000,000 795,000,000 956,000,000 1,118,000,000 848,000,000 915,000,000 868,000,000 881,000,000 793,000,000 763,000,000 808,000,000 923,000,000 752,000,000 799,000,000 867,000,000 851,000,000 694,000,000 564,000,000 677,000,000 353,000,000 358,000,000 
        total current liabilities
      15,318,000,000 16,888,000,000 16,726,000,000 14,570,000,000 13,770,000,000 15,993,000,000 12,165,000,000 12,028,000,000 11,458,000,000 13,214,000,000 13,240,000,000 13,893,000,000 12,801,000,000 11,487,000,000 10,434,000,000 11,259,000,000 11,660,000,000 11,586,000,000 11,750,000,000 9,334,000,000 9,553,000,000 10,534,000,000 10,999,000,000 12,965,000,000 14,366,000,000 13,630,000,000 12,603,000,000 12,751,000,000 12,284,000,000 10,567,000,000 8,514,000,000 7,856,000,000 8,694,000,000 6,890,000,000 4,835,000,000 
        long-term debt
      67,148,000,000 65,649,000,000 64,621,000,000 62,983,000,000 62,939,000,000 58,768,000,000 61,254,000,000 59,883,000,000 59,361,000,000 56,003,000,000 55,134,000,000 52,060,000,000 50,427,000,000 51,204,000,000 50,633,000,000 48,843,000,000 47,828,000,000 46,727,000,000 45,581,000,000 45,138,000,000 44,235,000,000 42,098,000,000 39,682,000,000 41,425,000,000 42,483,000,000 44,446,000,000 44,042,000,000 43,885,000,000 42,786,000,000 41,550,000,000 35,368,000,000 26,091,000,000 22,674,000,000 21,699,000,000 22,288,000,000 
        deferred credits and other liabilities:
                                         
        accumulated deferred income taxes
      12,381,000,000 12,133,000,000 12,250,000,000 12,294,000,000 12,181,000,000 11,730,000,000 11,727,000,000 11,339,000,000 11,195,000,000 10,774,000,000 10,623,000,000 10,488,000,000 9,916,000,000 9,620,000,000 9,506,000,000 8,916,000,000 8,710,000,000 8,839,000,000 8,342,000,000 8,298,000,000 8,398,000,000 7,737,000,000 7,728,000,000 6,035,000,000 5,934,000,000 6,930,000,000 14,321,000,000 13,529,000,000 14,307,000,000 14,218,000,000 12,563,000,000 12,274,000,000 12,187,000,000 10,817,000,000 10,558,000,000 
        deferred credits related to income taxes
      4,648,000,000 4,712,000,000 4,381,000,000 4,446,000,000 4,372,000,000 4,434,000,000 4,587,000,000 4,645,000,000 4,607,000,000 4,813,000,000 4,965,000,000 5,107,000,000 5,271,000,000 5,318,000,000 5,365,000,000 5,485,000,000 5,593,000,000 5,676,000,000 5,763,000,000 5,860,000,000 5,954,000,000 6,356,000,000 6,386,000,000 6,651,000,000 6,647,000,000 7,179,000,000  212,000,000 215,000,000 204,000,000 183,000,000 185,000,000 186,000,000 191,000,000 197,000,000 
        accumulated deferred itcs
      2,047,000,000 2,002,000,000 1,994,000,000 2,017,000,000 2,034,000,000 2,056,000,000 2,003,000,000 2,026,000,000 2,046,000,000 2,071,000,000 2,091,000,000 2,112,000,000 2,154,000,000 2,175,000,000 2,196,000,000 2,230,000,000 2,247,000,000 2,214,000,000 2,251,000,000 2,271,000,000 2,271,000,000 2,306,000,000 2,283,000,000 2,377,000,000 2,360,000,000 2,362,000,000 2,290,000,000 2,301,000,000        
        employee benefit obligations
      941,000,000 980,000,000 955,000,000 993,000,000 983,000,000 1,011,000,000 1,064,000,000 1,109,000,000 1,096,000,000 1,184,000,000 1,217,000,000 1,222,000,000 1,466,000,000 1,509,000,000 1,526,000,000 1,849,000,000 2,004,000,000 2,091,000,000 1,753,000,000 1,789,000,000 1,778,000,000 1,999,000,000 2,058,000,000 2,017,000,000 2,009,000,000 2,206,000,000 2,139,000,000 2,156,000,000 2,234,000,000 3,022,000,000 2,485,000,000 2,546,000,000 2,375,000,000 1,474,000,000 1,446,000,000 
        operating lease obligations, deferred
      1,280,000,000 1,287,000,000 1,242,000,000 1,288,000,000 1,299,000,000 1,253,000,000 1,267,000,000 1,309,000,000 1,292,000,000 1,320,000,000 1,356,000,000 1,374,000,000 1,393,000,000 1,464,000,000 1,521,000,000 1,495,000,000 1,604,000,000 1,652,000,000 1,570,000,000 1,611,000,000 1,610,000,000 1,601,000,000 1,702,000,000             
        asset retirement obligations, deferred
      8,907,000,000 8,939,000,000 8,774,000,000 8,862,000,000 9,145,000,000 9,203,000,000 9,178,000,000 9,615,000,000 9,657,000,000 9,872,000,000 10,127,000,000 10,209,000,000 11,007,000,000 11,010,000,000 11,016,000,000 10,919,000,000 9,983,000,000 10,043,000,000 10,020,000,000 9,699,000,000 9,296,000,000 9,527,000,000 9,478,000,000 5,817,000,000 5,836,000,000 4,536,000,000 4,356,000,000 4,297,000,000 4,170,000,000 4,124,000,000 4,129,000,000 3,504,000,000    
        other cost of removal obligations
      2,054,000,000 2,036,000,000 2,032,000,000 2,028,000,000 2,039,000,000 2,016,000,000 2,006,000,000 1,994,000,000 1,989,000,000 1,940,000,000 1,932,000,000 1,921,000,000 1,950,000,000 1,993,000,000 2,030,000,000 2,164,000,000 2,190,000,000 2,215,000,000 2,231,000,000 2,258,000,000 2,251,000,000 2,263,000,000 2,283,000,000 2,330,000,000 2,364,000,000 2,667,000,000 2,708,000,000 2,706,000,000 2,724,000,000 2,771,000,000 1,154,000,000 1,151,000,000 1,206,000,000 1,341,000,000 1,298,000,000 
        other regulatory liabilities, deferred
      770,000,000 722,000,000 642,000,000 671,000,000 683,000,000 692,000,000 725,000,000 718,000,000 731,000,000 660,000,000 691,000,000 690,000,000 536,000,000 536,000,000 526,000,000 351,000,000 256,000,000 226,000,000 315,000,000 371,000,000 368,000,000 265,000,000 176,000,000 153,000,000 140,000,000 224,000,000 449,000,000 233,000,000 237,000,000 401,000,000 335,000,000 303,000,000 408,000,000 566,000,000 481,000,000 
        other deferred credits and liabilities
      1,625,000,000 1,505,000,000 1,357,000,000 1,359,000,000 1,441,000,000 1,350,000,000 1,075,000,000 1,160,000,000 1,074,000,000 1,166,000,000 1,092,000,000 1,118,000,000 1,366,000,000 1,198,000,000 966,000,000 637,000,000 587,000,000 557,000,000 571,000,000 630,000,000 701,000,000 562,000,000 384,000,000 454,000,000 516,000,000 660,000,000 1,048,000,000 805,000,000 873,000,000 641,000,000 724,000,000 754,000,000 996,000,000 549,000,000 568,000,000 
        total deferred credits and other liabilities
      34,653,000,000 34,316,000,000 33,627,000,000 33,958,000,000 34,177,000,000 33,745,000,000 33,632,000,000 33,915,000,000 33,687,000,000 33,800,000,000 34,094,000,000 34,241,000,000 35,059,000,000 34,823,000,000 34,652,000,000 34,249,000,000 33,382,000,000 33,721,000,000 33,036,000,000 33,007,000,000 32,857,000,000 32,877,000,000 32,764,000,000 28,938,000,000 28,912,000,000 27,142,000,000 27,311,000,000 26,638,000,000 27,412,000,000 27,898,000,000 23,380,000,000 22,442,000,000 21,508,000,000 18,077,000,000 17,514,000,000 
        total liabilities
      117,119,000,000 116,853,000,000 114,974,000,000 111,511,000,000 110,886,000,000 108,506,000,000 107,051,000,000 105,826,000,000 104,506,000,000 103,017,000,000 102,468,000,000 100,194,000,000 98,287,000,000 97,514,000,000 95,719,000,000 94,351,000,000 92,870,000,000 92,034,000,000 90,367,000,000 87,479,000,000 86,645,000,000 85,509,000,000 83,445,000,000 83,328,000,000 85,761,000,000 85,218,000,000 83,956,000,000 83,274,000,000 82,482,000,000 80,015,000,000 67,262,000,000 56,389,000,000 52,876,000,000 46,666,000,000 44,637,000,000 
        total stockholders' equity
      39,912,000,000 38,867,000,000 38,274,000,000 37,342,000,000 37,223,000,000 36,674,000,000 36,905,000,000 36,111,000,000 35,614,000,000 35,304,000,000 34,648,000,000 34,562,000,000 35,476,000,000 33,013,000,000 32,629,000,000 33,219,000,000 32,746,000,000 33,068,000,000 32,500,000,000 31,961,000,000 31,916,000,000 31,791,000,000 31,131,000,000 28,065,000,000 26,692,000,000 26,025,000,000 25,939,000,000 25,241,000,000 26,996,000,000 26,180,000,000 23,446,000,000 22,184,000,000 21,146,000,000 20,613,000,000 19,826,000,000 
        total liabilities and stockholders' equity
      157,031,000,000 155,720,000,000 153,248,000,000 148,853,000,000 148,109,000,000 145,180,000,000 143,956,000,000 141,937,000,000 140,120,000,000 138,321,000,000 137,116,000,000 134,756,000,000 134,005,000,000 130,769,000,000 128,639,000,000 127,861,000,000 125,907,000,000 125,393,000,000 123,158,000,000 119,731,000,000 118,852,000,000 117,591,000,000 114,867,000,000 111,717,000,000 112,777,000,000 111,567,000,000 110,315,000,000 108,684,000,000 109,760,000,000 106,362,000,000 90,873,000,000 78,735,000,000 74,181,000,000 67,654,000,000 64,838,000,000 
        other intangible assets, net of amortization of 444 and 412, respectively
       300,000,000                                  
        deferred under recovered retail fuel clause revenues
       252,000,000    485,000,000                              
        common stockholders' equity:
                                         
        common stock
       5,554,000,000    5,446,000,000                              
        paid-in capital
       15,740,000,000    14,149,000,000                  10,905,000,000 10,303,000,000 10,603,000,000 10,300,000,000 10,106,000,000 9,884,000,000 9,217,000,000 7,499,000,000 6,582,000,000 6,123,000,000 5,652,000,000 5,405,000,000 
        treasury, at cost
       -59,000,000    -59,000,000                  -39,000,000 -39,000,000 -38,000,000 -35,000,000 -34,000,000 -33,000,000 -30,000,000 -30,000,000 -144,000,000 -142,000,000 -25,000,000 -139,000,000 
        retained earnings
       14,856,000,000    13,750,000,000                  9,048,000,000 8,494,000,000 9,257,000,000 8,981,000,000 8,494,000,000 10,459,000,000 10,685,000,000 10,085,000,000 9,999,000,000 9,767,000,000 9,800,000,000 9,410,000,000 
        accumulated other comprehensive loss
       -75,000,000    -78,000,000                  -177,000,000 -188,000,000 -200,000,000 -182,000,000 -191,000,000 -189,000,000 -225,000,000 -247,000,000 -244,000,000 -121,000,000 -70,000,000 -73,000,000 
        total common stockholders' equity
       36,016,000,000    33,208,000,000                  24,877,000,000 23,636,000,000 24,676,000,000 24,082,000,000 23,372,000,000 25,094,000,000 24,547,000,000 22,015,000,000 20,797,000,000 20,182,000,000 19,857,000,000 19,070,000,000 
        noncontrolling interests
       2,851,000,000    3,466,000,000                  3,188,000,000 3,056,000,000 1,349,000,000 1,395,000,000 1,407,000,000 1,293,000,000 1,024,000,000 822,000,000 778,000,000    
        commitments and contingent matters
                                         
        other intangible assets, net of amortization of 436 and 412, respectively
        308,000,000                                 
        other intangible assets, net of amortization of 428 and 412, respectively
         316,000,000                                
        other intangible assets, net of amortization of 420 and 412, respectively
          324,000,000                               
        other intangible assets, net of amortization of 412 and 376, respectively
           332,000,000                              
        other intangible assets, net of amortization of 403 and 376, respectively
            341,000,000                             
        other intangible assets, net of amortization of 394 and 376, respectively
             350,000,000                            
        other intangible assets, net of amortization of 385 and 376, respectively
              359,000,000                           
        accumulated benefit from uncollectible accounts
               -78,000,000 -84,000,000 -80,000,000 -80,000,000 -94,000,000 -89,000,000 -72,000,000 -88,000,000 -124,000,000    -47,000,000 -50,000,000 -33,000,000 -42,000,000 -54,000,000 -43,000,000 -52,000,000 -53,000,000 -43,000,000 -14,000,000 -13,000,000 -17,000,000 -20,000,000 -17,000,000 
        other intangible assets, net of amortization of 367 and 340, respectively
               377,000,000                          
        natural gas cost under recovery
                  390,000,000 361,000,000 306,000,000 432,000,000 485,000,000 487,000,000                  
        other intangible assets, net of amortization of 358 and 340, respectively
                386,000,000                         
        other intangible assets, net of amortization of 350 and 340, respectively
                 397,000,000                        
        other intangible assets, net of amortization of 331 and 307, respectively
                  415,000,000                       
        redeemable preferred stock of subsidiaries
                  242,000,000 242,000,000 291,000,000 291,000,000 291,000,000 291,000,000 291,000,000 291,000,000 291,000,000 291,000,000 291,000,000 324,000,000 324,000,000 324,000,000 361,000,000 118,000,000 118,000,000 118,000,000 118,000,000 118,000,000 118,000,000 375,000,000 375,000,000 
        other intangible assets, net of amortization of 326 and 307, respectively
                   425,000,000                      
        other intangible assets, net of amortization of 317 and 307, respectively
                    435,000,000                     
        energy marketing
                       412,000,000                  
        other intangible assets, net of amortization of 296 and 328, respectively
                     455,000,000                    
        leveraged leases
                     575,000,000 569,000,000 562,000,000 653,000,000 647,000,000 795,000,000 799,000,000 813,000,000 794,000,000 788,000,000 781,000,000 788,000,000 782,000,000 780,000,000 769,000,000 763,000,000 761,000,000 751,000,000 680,000,000 670,000,000 
        energy marketing trade payables
                       475,000,000 361,000,000 284,000,000 298,000,000 368,000,000 393,000,000 521,000,000 485,000,000 437,000,000 451,000,000 534,000,000 471,000,000 533,000,000      
        accrued environmental remediation
                     203,000,000 208,000,000 208,000,000 220,000,000 220,000,000 230,000,000 241,000,000 247,000,000 269,000,000 273,000,000 378,000,000  399,000,000 388,000,000 415,000,000      
        assets held for sale
                      787,000,000     17,000,000 58,000,000 4,667,000,000 4,618,000,000           
        other intangible assets, net of amortization of 286 and 328, respectively
                      466,000,000                   
        liabilities held for sale
                      677,000,000     6,000,000 36,000,000 2,835,000,000 2,833,000,000           
        other intangible assets, net of amortization of 339 and 328, respectively
                       477,000,000                  
        customer accounts receivable
                        1,778,000,000 1,613,000,000 1,603,000,000 1,812,000,000 1,654,000,000 1,730,000,000 1,728,000,000 1,683,000,000 1,744,000,000 1,600,000,000 1,560,000,000 1,718,000,000 1,281,000,000 988,000,000 1,312,000,000 1,439,000,000 1,063,000,000 
        energy marketing receivables
                        328,000,000 273,000,000 291,000,000 336,000,000 361,000,000 498,000,000 451,000,000 448,000,000 427,000,000 482,000,000        
        other accounts and notes receivable
                        506,000,000 549,000,000 560,000,000 693,000,000 756,000,000 690,000,000 621,000,000 703,000,000 578,000,000 513,000,000 433,000,000 317,000,000 247,000,000 236,000,000 209,000,000 259,000,000 306,000,000 
        other intangible assets, net of amortization of 316 and 280 at september 30, 2020 and december 31, 2019, respectively
                        499,000,000                 
        assets held for sale, deferred
                           631,000,000 685,000,000             
        other intangible assets, net of amortization of 304 and 280 at june 30, 2020 and december 31, 2019, respectively
                         511,000,000                
        other intangible assets, net of amortization of 292 and 280 at march 31, 2020 and december 31, 2019, respectively
                          523,000,000               
        other intangible assets, net of amortization of 265 and 235 at september 30, 2019 and december 31, 2018, respectively
                           550,000,000              
        liabilities held for sale, deferred
                           20,000,000 39,000,000             
        other intangible assets, net of amortization of 253 and 235 at june 30, 2019 and december 31, 2018, respectively
                            550,000,000             
        other regulatory assets, current
                             522,000,000 528,000,000 579,000,000 585,000,000 569,000,000 560,000,000 414,000,000 350,000,000 394,000,000 382,000,000 147,000,000 117,000,000 
        assets held for sale, current
                             407,000,000 2,704,000,000           
        other intangible assets, net of amortization of 225 and 186 at september 30, 2018 and december 31, 2017, respectively
                             674,000,000            
        accrued taxes
                             1,060,000,000 544,000,000 368,000,000          
        asset retirement obligations, current
                             348,000,000 332,000,000 301,000,000 245,000,000 300,000,000 386,000,000 390,000,000 349,000,000 237,000,000    
        other regulatory liabilities, current
                             349,000,000 508,000,000 551,000,000 139,000,000 169,000,000 221,000,000 99,000,000 115,000,000 210,000,000  84,000,000 116,000,000 
        liabilities held for sale, current
                             355,000,000 706,000,000           
        stockholders' equity:
                                         
        authorized — 1.5 billion shares
                                         
        issued — 1.0 billion shares
                                         
        treasury — september 30, 2018: 1.0 million shares
                                         
        — december 31, 2017: 0.9 million shares
                                         
        par value
                             5,140,000,000 5,066,000,000 5,054,000,000 5,018,000,000 4,997,000,000 4,973,000,000 4,900,000,000 4,708,000,000 4,604,000,000 4,555,000,000 4,500,000,000 4,467,000,000 
        other intangible assets, net of amortization of 205 and 186 at june 30, 2018 and december 31, 2017, respectively
                              702,000,000           
        treasury — june 30, 2018: 1.0 million shares
                                         
        other intangible assets, net of amortization of 212 and 186 at march 31, 2018 and december 31, 2017, respectively
                               848,000,000          
        treasury — march 31, 2018: 1.0 million shares
                                         
        income taxes receivable, current
                                138,000,000 544,000,000 544,000,000       
        other intangible assets, net of amortization of 156 and 62 at september 30, 2017 and december 31, 2016, respectively
                                902,000,000         
        unrecognized tax benefits
                                17,000,000 400,000,000 400,000,000 381,000,000 380,000,000 375,000,000    
        acquisitions payable
                                         
        redeemable noncontrolling interests
                                59,000,000 51,000,000 164,000,000 49,000,000 47,000,000 44,000,000    
        issued — september 30, 2017: 1.0 billion shares
                                         
        — december 31, 2016: 991 million shares
                                         
        treasury — september 30, 2017: 0.9 million shares
                                         
        — december 31, 2016: 0.8 million shares
                                         
        preferred and preference stock of subsidiaries
                                462,000,000 462,000,000 609,000,000 609,000,000 609,000,000 609,000,000 609,000,000 756,000,000 756,000,000 
        under recovered regulatory clause revenues
                                 26,000,000 47,000,000 54,000,000 12,000,000 43,000,000 173,000,000 104,000,000 72,000,000 
        other intangible assets, net of amortization of 126 and 62 at june 30, 2017 and december 31, 2016, respectively
                                 929,000,000        
        issued — june 30, 2017: 1.0 billion shares
                                         
        treasury — june 30, 2017: 0.9 million shares
                                         
        energy marketing receivable
                                  493,000,000 526,000,000      
        other intangible assets, net of amortization of 97 and 62 at march 31, 2017 and december 31, 2016, respectively
                                  935,000,000       
        accumulated deferred investment tax credits
                                  2,264,000,000 1,721,000,000 1,427,000,000 1,350,000,000 1,290,000,000 1,006,000,000 962,000,000 
        issued — march 31, 2017: 995 million shares
                                         
        treasury — march 31, 2017: 0.9 million shares
                                         
        vacation pay
                                   178,000,000 181,000,000 181,000,000 177,000,000 170,000,000 171,000,000 
        less accumulated depreciation
                                   29,590,000,000 24,778,000,000 24,566,000,000 23,918,000,000 23,846,000,000 23,329,000,000 
        other intangible assets, net of amortization of 39 and 12 at september 30, 2016 and december 31, 2015, respectively
                                   942,000,000      
        income taxes receivable, non-current
                                   413,000,000 413,000,000 413,000,000 444,000,000   
        accrued vacation pay
                                   231,000,000 229,000,000 228,000,000 222,000,000 213,000,000 213,000,000 
        mandatorily redeemable noncontrolling interest
                                   174,000,000      
        issued — september 30, 2016: 981 million shares
                                         
        — december 31, 2015: 915 million shares
                                         
        treasury — september 30, 2016: 0.8 million shares
                                         
        — december 31, 2015: 3.4 million shares
                                         
        restricted cash and cash equivalents
                                    7,963,000,000     
        fossil fuel stock, at average cost
                                    798,000,000 837,000,000 795,000,000 817,000,000 898,000,000 
        materials and supplies, at average cost
                                    1,210,000,000 1,085,000,000 1,043,000,000 1,018,000,000 963,000,000 
        other intangible assets, net of amortization of 14 and 12 at june 30, 2016 and december 31, 2015, respectively
                                    490,000,000     
        liabilities from risk management activities
                                    95,000,000 319,000,000    
        issued — june 30, 2016: 942 million shares
                                         
        treasury — june 30, 2016: 0.8 million shares
                                         
        issued -- march 31, 2016: 922 million shares
                                         
        -- december 31, 2015: 915 million shares
                                         
        treasury -- march 31, 2016: 3.4 million shares
                                         
        -- december 31, 2015: 3.4 million shares
                                         
        deferred income taxes, current
                                      499,000,000   
        unamortized debt issuance expense
                                      208,000,000 206,000,000 202,000,000 
        interest-bearing refundable deposits
                                         
        mirror cwip
                                      353,000,000   
        redeemable noncontrolling interest
                                      41,000,000   
        issued — june 30, 2015: 912 million shares
                                         
        — december 31, 2014: 909 million shares
                                         
        treasury — june 30, 2015: 3.3 million shares
                                         
        — december 31, 2014: 0.7 million shares
                                         
        noncontrolling interest
                                      355,000,000   
        interest-bearing refundable deposit
                                       225,000,000  
        issued — september 30, 2014: 901 million shares
                                         
        — december 31, 2013: 893 million shares
                                         
        treasury — september 30, 2014: 0.7 million shares
                                         
        — december 31, 2013: 5.7 million shares
                                         
        interest-bearing refundable deposit related to asset sale
                                        225,000,000 
        issued — march 31, 2014: 894 million shares
                                         
        treasury — march 31, 2014: 3.3 million shares
                                         
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-09-30 2024-06-30 2024-03-31 2023-09-30 2023-06-30 2023-03-31 2022-09-30 2022-06-30 2022-03-31 2021-09-30 2021-06-30 2021-03-31 2020-09-30 2020-06-30 2020-03-31 2019-09-30 2018-09-30 2018-06-30 2018-03-31 2017-09-30 2017-06-30 2017-03-31 2016-09-30 2016-06-30 2016-03-31 2015-09-30 2015-06-30 2015-03-31 2014-03-31 
                                          
          operating activities:
                                          
          consolidated net income
        1,338,000,000 341,000,000 1,707,000,000 853,000,000 1,270,000,000 1,535,000,000 1,188,000,000 1,071,000,000 1,431,000,000 823,000,000 799,000,000 1,487,000,000 1,088,000,000 991,000,000 1,110,000,000 375,000,000 1,107,000,000 1,285,000,000 620,000,000 841,000,000 1,346,000,000 1,222,000,000 -127,000,000 936,000,000 1,111,000,000 -1,349,000,000 665,000,000 1,166,000,000 636,000,000 497,000,000 969,000,000 644,000,000 525,000,000 368,000,000 
          adjustments to reconcile consolidated net income to net cash from operating activities —
                                          
          depreciation and amortization, total
        1,580,000,000 1,605,000,000 1,565,000,000 1,449,000,000 1,411,000,000 1,344,000,000 1,311,000,000 1,261,000,000 1,263,000,000 1,203,000,000 1,233,000,000 1,089,000,000 1,006,000,000 989,000,000 995,000,000 985,000,000 964,000,000 987,000,000 967,000,000 949,000,000 891,000,000 897,000,000 877,000,000 873,000,000 881,000,000 860,000,000 823,000,000 803,000,000 667,000,000 639,000,000 616,000,000 593,000,000 578,000,000 587,000,000 
          deferred income taxes
        168,000,000 263,000,000 -98,000,000 170,000,000 283,000,000 277,000,000   -18,000,000   368,000,000 200,000,000 40,000,000 190,000,000 -241,000,000 140,000,000 22,000,000 -160,000,000 -58,000,000 -21,000,000 52,000,000 -372,000,000 34,000,000 285,000,000 -431,000,000 161,000,000 -301,000,000 283,000,000 -4,000,000 38,000,000 670,000,000 113,000,000 -37,000,000 
          allowance for equity funds used during construction
        -121,000,000 -97,000,000 -90,000,000 -80,000,000 -73,000,000 -58,000,000 -51,000,000 -58,000,000 -65,000,000 -70,000,000 -65,000,000 -59,000,000 -53,000,000 -51,000,000   -46,000,000 -38,000,000 -34,000,000 -34,000,000 -33,000,000 -36,000,000 -33,000,000 -30,000,000 -18,000,000 -58,000,000 -57,000,000 -52,000,000 -45,000,000 -53,000,000 -61,000,000 -39,000,000 -63,000,000 -57,000,000 
          pension, postretirement, and other employee benefits
        -149,000,000 -165,000,000 -161,000,000 -104,000,000 -149,000,000 -159,000,000 -103,000,000 -129,000,000 -152,000,000 -119,000,000 -126,000,000 -111,000,000 -88,000,000 -123,000,000 -103,000,000 -37,000,000 -78,000,000 -71,000,000 -52,000,000 -67,000,000 -49,000,000 14,000,000   19,000,000          
          settlement of asset retirement obligations
        -133,000,000 -163,000,000 -186,000,000 -151,000,000 -134,000,000 -138,000,000 -135,000,000 -132,000,000 -168,000,000 -163,000,000 -113,000,000 -116,000,000 -111,000,000 -87,000,000 -113,000,000 -119,000,000 -109,000,000 -122,000,000 -107,000,000 -86,000,000 -82,000,000 -63,000,000   -50,000,000          
          stock based compensation expense
        97,000,000 12,000,000 22,000,000 12,000,000 90,000,000 23,000,000 14,000,000 83,000,000 8,000,000 19,000,000 92,000,000 16,000,000 15,000,000 85,000,000 29,000,000 22,000,000 83,000,000 15,000,000 12,000,000 72,000,000 12,000,000 25,000,000 14,000,000 69,000,000  12,000,000 61,000,000 18,000,000 11,000,000 58,000,000 11,000,000 10,000,000 56,000,000 28,000,000 
          storm damage cost recovery – long-term
        -93,000,000 -13,000,000 -24,000,000 -65,000,000 -173,000,000                              
          other
        -25,000,000 -14,000,000 -98,000,000 9,000,000 67,000,000 -5,000,000 -171,000,000 76,000,000 -17,000,000 -101,000,000 51,000,000 -66,000,000 14,000,000 7,000,000 53,000,000 -174,000,000 114,000,000 50,000,000 -68,000,000 111,000,000 23,000,000 -26,000,000 -1,000,000 6,000,000 55,000,000 -52,000,000 -11,000,000 -29,000,000 -56,000,000 -13,000,000 13,000,000 -10,000,000 4,000,000 -8,000,000 
          changes in certain current assets and liabilities —
                                          
          -receivables
        124,000,000 -324,000,000 330,000,000   51,000,000 -336,000,000 52,000,000 -211,000,000 416,000,000 319,000,000 310,000,000 -420,000,000 -217,000,000 -27,000,000 -279,000,000 308,000,000 -167,000,000 -25,000,000 317,000,000 -65,000,000 -57,000,000 -103,000,000 197,000,000 316,000,000 -202,000,000 312,000,000 -261,000,000 -432,000,000 235,000,000 40,000,000 -338,000,000 180,000,000 -128,000,000 
          -retail fuel cost under recovery
        63,000,000 206,000,000 281,000,000 87,000,000 71,000,000 422,000,000 164,000,000 257,000,000                           
          -prepayments
        -98,000,000   11,000,000 -120,000,000  34,000,000 -83,000,000  36,000,000 -100,000,000  -4,000,000 -86,000,000  19,000,000 -98,000,000 63,000,000 8,000,000 -110,000,000 114,000,000 87,000,000 9,000,000 -82,000,000  50,000,000 -111,000,000        
          -materials and supplies
        -85,000,000 -42,000,000 -17,000,000   -56,000,000 -64,000,000 -75,000,000 -69,000,000 -104,000,000 -98,000,000 -29,000,000 -81,000,000 -28,000,000                -14,000,000 -1,000,000 -25,000,000 4,000,000 -5,000,000 
          -natural gas for sale, net of temporary lifo liquidation
        355,000,000   -132,000,000 365,000,000  -49,000,000 237,000,000  -71,000,000 267,000,000 -471,000,000 -115,000,000 450,000,000  -81,000,000 456,000,000      -118,000,000 413,000,000  -188,000,000 411,000,000        
          -other current assets
        -27,000,000 234,000,000 -248,000,000 -23,000,000 84,000,000 -87,000,000 -67,000,000 -27,000,000 -135,000,000 -40,000,000 143,000,000 -355,000,000 -75,000,000 87,000,000 -196,000,000 -27,000,000 63,000,000 173,000,000 -186,000,000 -67,000,000 -92,000,000 -50,000,000 -47,000,000 7,000,000 -128,000,000 -5,000,000 -31,000,000 -58,000,000 37,000,000 -90,000,000 60,000,000 11,000,000 -89,000,000 -114,000,000 
          -accounts payable
        -555,000,000 457,000,000 -52,000,000 -301,000,000 -394,000,000 86,000,000 176,000,000 -423,000,000 -34,000,000 59,000,000 -1,056,000,000 102,000,000 571,000,000 132,000,000 132,000,000 39,000,000 -216,000,000 39,000,000 37,000,000 -504,000,000 -110,000,000 158,000,000 19,000,000 -425,000,000 -114,000,000 180,000,000 -533,000,000 62,000,000 1,000,000 -72,000,000 45,000,000 115,000,000 -426,000,000 -109,000,000 
          -accrued taxes
        -408,000,000 -468,000,000 677,000,000 173,000,000 -418,000,000   -226,000,000   -237,000,000 317,000,000 -92,000,000 -58,000,000 445,000,000 55,000,000 -212,000,000 31,000,000 360,000,000 -102,000,000 -259,000,000 626,000,000 292,000,000 -79,000,000 289,000,000 80,000,000 -212,000,000 988,000,000 134,000,000 -60,000,000 468,000,000 -257,000,000 197,000,000 -44,000,000 
          -accrued compensation
        -599,000,000  295,000,000 116,000,000 -537,000,000 282,000,000 116,000,000 -488,000,000 181,000,000 100,000,000 -478,000,000 137,000,000 210,000,000 -470,000,000 145,000,000 179,000,000 -417,000,000 164,000,000 126,000,000 -473,000,000 121,000,000 146,000,000 187,000,000 -471,000,000 101,000,000 107,000,000 -438,000,000 100,000,000 110,000,000 -332,000,000 140,000,000 112,000,000 -381,000,000 -144,000,000 
          -accrued interest
        -180,000,000       -70,000,000   -127,000,000   -128,000,000   -90,000,000                  
          -customer refunds
        5,000,000   15,000,000 -95,000,000 -2,000,000 -25,000,000 -1,000,000 -56,000,000      1,000,000   -3,000,000                 
          -natural gas cost over recovery
        -27,000,000   92,000,000 -179,000,000 55,000,000 22,000,000 -65,000,000 4,000,000 44,000,000 117,000,000                        
          -other current liabilities
        -4,000,000 366,000,000 -293,000,000 145,000,000 -119,000,000 -212,000,000 82,000,000 103,000,000 -35,000,000 129,000,000 -28,000,000 -62,000,000 -5,000,000 35,000,000 9,000,000 -61,000,000 -116,000,000 -88,000,000 145,000,000 -103,000,000 -19,000,000 -192,000,000 44,000,000 81,000,000 -115,000,000 34,000,000 -48,000,000 21,000,000 -4,000,000 -35,000,000 54,000,000 27,000,000 90,000,000 -55,000,000 
          net cash from operating activities
        1,226,000,000 2,597,000,000 3,774,000,000 2,181,000,000 1,250,000,000 3,616,000,000 2,688,000,000 1,311,000,000          2,373,000,000 1,953,000,000 894,000,000               
          investing activities:
                                          
          property additions
        -2,944,000,000 -4,285,000,000 -3,215,000,000 -2,800,000,000 -2,437,000,000 -2,311,000,000 -2,125,000,000 -1,770,000,000 -2,663,000,000 -2,048,000,000 -1,850,000,000 -2,289,000,000 -1,794,000,000 -1,419,000,000 -1,838,000,000 -1,706,000,000 -1,678,000,000 -2,163,000,000 -1,642,000,000 -1,560,000,000 -1,933,000,000 -1,965,000,000 -2,047,000,000 -1,781,000,000 -1,844,000,000 -1,910,000,000 -1,488,000,000 -1,766,000,000 -1,614,000,000 -1,872,000,000 -843,000,000 -1,550,000,000 -1,097,000,000 -1,180,000,000 
          nuclear decommissioning trust fund purchases
        -442,000,000 -490,000,000 -435,000,000 -416,000,000 -361,000,000 -331,000,000 -335,000,000 -404,000,000 -159,000,000 -470,000,000 -256,000,000 -230,000,000 -334,000,000 -294,000,000 -371,000,000 -380,000,000 -550,000,000 -190,000,000 -270,000,000 -254,000,000 -278,000,000 -275,000,000 -265,000,000 -306,000,000 -197,000,000 -164,000,000 -224,000,000 -253,000,000 -269,000,000 -316,000,000 -231,000,000 -643,000,000 -290,000,000 -231,000,000 
          nuclear decommissioning trust fund sales
        442,000,000 473,000,000 435,000,000 416,000,000 361,000,000 332,000,000 335,000,000 403,000,000 159,000,000 469,000,000 251,000,000 230,000,000 335,000,000 289,000,000 371,000,000 380,000,000 546,000,000 189,000,000 270,000,000 249,000,000 278,000,000 274,000,000 265,000,000 301,000,000 197,000,000 165,000,000 218,000,000 252,000,000 269,000,000 311,000,000 231,000,000 644,000,000 284,000,000 229,000,000 
          cost of removal, net of salvage
        -166,000,000 -176,000,000 -175,000,000 -136,000,000 -168,000,000 -162,000,000 -144,000,000 -138,000,000 -151,000,000 -135,000,000 -135,000,000 -141,000,000 -150,000,000 -227,000,000 -98,000,000 -99,000,000 -85,000,000 -103,000,000 -61,000,000 -69,000,000 -93,000,000 -124,000,000 -49,000,000 -79,000,000 -80,000,000 -67,000,000 -61,000,000 -56,000,000 -47,000,000 -52,000,000 -31,000,000 -51,000,000 -36,000,000 -22,000,000 
          change in construction payables
        -251,000,000 232,000,000 111,000,000 119,000,000 -161,000,000 98,000,000 148,000,000 -365,000,000 381,000,000 -140,000,000   23,000,000  61,000,000 -116,000,000 63,000,000 38,000,000 -141,000,000 -25,000,000 42,000,000 161,000,000 -112,000,000 237,000,000 53,000,000 -170,000,000 1,000,000 -166,000,000 -94,000,000 -36,000,000 -9,000,000 65,000,000 51,000,000 
          other investing activities
        -60,000,000 45,000,000 50,000,000 -85,000,000 -68,000,000 -107,000,000 -61,000,000 -111,000,000 -39,000,000 -9,000,000 -91,000,000 -23,000,000 -14,000,000 110,000,000 -47,000,000 10,000,000 25,000,000 12,000,000 -36,000,000 7,000,000 22,000,000 -17,000,000 22,000,000 -4,000,000 -72,000,000 -7,000,000 65,000,000 -18,000,000 127,000,000 -14,000,000 -20,000,000 23,000,000 4,000,000 -7,000,000 
          net cash from investing activities
        -3,421,000,000 -4,360,000,000 -3,865,000,000 -2,900,000,000 -2,834,000,000 -2,456,000,000 -1,837,000,000 -2,385,000,000 -2,433,000,000 -2,170,000,000 -2,118,000,000 -2,492,000,000 -1,905,000,000 -1,555,000,000 -1,824,000,000 -1,783,000,000 -2,243,000,000 -2,237,000,000 -1,766,000,000 -889,000,000 -2,075,000,000 124,000,000 -1,629,000,000 -1,995,000,000 -1,798,000,000 -2,086,000,000 -2,803,000,000 -3,965,000,000 -10,478,000,000 -2,197,000,000 -2,114,000,000 -1,659,000,000 -1,107,000,000 -1,215,000,000 
          financing activities:
                                          
          increase in notes payable
        653,000,000    -841,000,000   236,000,000  -562,000,000 187,000,000  126,000,000 137,000,000  310,000,000 182,000,000  -485,000,000 -685,000,000   660,000,000 782,000,000 -545,000,000 -543,000,000 573,000,000 184,000,000 177,000,000 294,000,000 478,000,000 -413,000,000 597,000,000 -884,000,000 
          proceeds —
                                          
          long-term debt
        2,390,000,000 2,201,000,000 3,950,000,000 1,752,000,000 4,567,000,000 1,358,000,000 1,604,000,000 2,359,000,000 2,271,000,000 3,562,000,000 1,979,000,000 1,600,000,000 1,500,000,000 700,000,000 2,147,000,000 2,496,000,000 2,150,000,000 3,250,000,000 1,640,000,000 2,653,000,000 3,347,000,000 850,000,000 500,000,000 600,000,000 1,110,000,000 1,549,000,000 1,409,000,000 15,363,000,000 -384,000,000 -888,000,000 -1,623,000,000 -606,000,000 -333,000,000 -9,000,000 
          short-term borrowings
        350,000,000   250,000,000 450,000,000 150,000,000 100,000,000 350,000,000 850,000,000 325,000,000 50,000,000 565,000,000 1,500,000,000 450,000,000 1,200,000,000 259,000,000 1,000,000,000 4,000,000    -40,000,000 40,000,000 280,000,000  
          common stock
        535,000,000 1,533,000,000 28,000,000 32,000,000 30,000,000 28,000,000 56,000,000 28,000,000 4,000,000 7,000,000 15,000,000 1,742,000,000 23,000,000 38,000,000 38,000,000 10,000,000 14,000,000 4,000,000 7,000,000 52,000,000 171,000,000 656,000,000 109,000,000 113,000,000 196,000,000 231,000,000 186,000,000       
          redemptions and repurchases —
                                          
          distributions to noncontrolling interests
        -47,000,000 -82,000,000 -52,000,000 -29,000,000 -37,000,000   -34,000,000 -61,000,000 -39,000,000 -48,000,000 -60,000,000 -18,000,000 -97,000,000 -91,000,000 -67,000,000 -46,000,000 -46,000,000 -70,000,000 -48,000,000 -43,000,000 -44,000,000 -29,000,000 -13,000,000 -49,000,000 -22,000,000 -18,000,000 -11,000,000 -7,000,000 -4,000,000     
          payment of common stock dividends
        -776,000,000 -761,000,000 -760,000,000 -758,000,000 -736,000,000 -733,000,000 -754,000,000 -733,000,000 -765,000,000 -764,000,000 -742,000,000 -741,000,000 -723,000,000 -702,000,000 -700,000,000 -699,000,000 -678,000,000 -676,000,000 -677,000,000 -655,000,000 -650,000,000 -611,000,000 -608,000,000 -586,000,000 -582,000,000 -578,000,000 -556,000,000 -530,000,000 -526,000,000 -497,000,000 -493,000,000 -494,000,000 -478,000,000 -451,000,000 
          other financing activities
        -191,000,000 -42,000,000 -26,000,000 -17,000,000 -133,000,000 35,000,000 -68,000,000 -124,000,000 -20,000,000 -38,000,000 -83,000,000 -16,000,000 -104,000,000 -115,000,000 -57,000,000 -50,000,000 -117,000,000 -69,000,000 -54,000,000 -116,000,000 -63,000,000 -14,000,000 -181,000,000 -42,000,000 -38,000,000 -39,000,000 -36,000,000 -43,000,000 -91,000,000 -17,000,000 187,000,000   -46,000,000 
          net cash from financing activities
        1,542,000,000 61,000,000 2,168,000,000 -348,000,000 2,815,000,000 -1,316,000,000 -472,000,000 985,000,000          1,362,000,000 -470,000,000 185,000,000               
          net change in cash, cash equivalents, and restricted cash
        -653,000,000 -1,702,000,000 2,077,000,000 -1,067,000,000 1,231,000,000 -156,000,000 379,000,000 -89,000,000 -354,000,000 1,027,000,000 -820,000,000 278,000,000 62,000,000 -156,000,000 484,000,000 -184,000,000 733,000,000 1,498,000,000 -283,000,000 190,000,000 1,549,000,000 -126,000,000 -273,000,000 143,000,000           
          cash, cash equivalents, and restricted cash at beginning of period
        1,640,000,000  1,101,000,000 921,000,000 2,037,000,000 1,829,000,000 1,068,000,000 1,978,000,000 2,147,000,000           
          cash, cash equivalents, and restricted cash at end of period
        987,000,000  2,077,000,000 -1,067,000,000 2,332,000,000 -156,000,000 379,000,000 832,000,000 -354,000,000 1,027,000,000 1,217,000,000 278,000,000 62,000,000 1,673,000,000 484,000,000 -184,000,000 1,801,000,000 1,498,000,000 -283,000,000 2,168,000,000 1,549,000,000 -126,000,000 -273,000,000 2,290,000,000           
          supplemental cash flow information:
                                          
          cash paid during the period for —
                                          
          interest
        901,000,000 519,000,000 886,000,000 531,000,000 756,000,000 780,000,000 521,000,000 714,000,000 651,000,000 391,000,000 652,000,000 589,000,000 321,000,000 515,000,000 533,000,000 365,000,000 519,000,000 494,000,000 362,000,000 490,000,000 474,000,000 475,000,000 428,000,000 499,000,000 453,000,000 372,000,000 461,000,000 308,000,000 234,000,000 224,000,000 216,000,000 167,000,000 207,000,000 186,000,000 
          income taxes
         53,000,000 32,000,000 200,000,000 -1,000,000 69,000,000 71,000,000 -9,000,000 51,000,000 -31,000,000 -9,000,000 3,000,000 165,000,000 -8,000,000 4,000,000 139,000,000 -51,000,000 74,000,000 8,000,000 -16,000,000 55,000,000 133,000,000 5,000,000 -1,000,000 -188,000,000 7,000,000 -6,000,000 -13,000,000 3,000,000 -141,000,000 3,000,000 273,000,000 -289,000,000 -7,000,000 
          noncash transactions —
                                          
          accrued property additions at end of period
        1,049,000,000  86,000,000 151,000,000 940,000,000 132,000,000 225,000,000 580,000,000 414,000,000 -23,000,000 833,000,000 35,000,000 -26,000,000 863,000,000 -28,000,000 71,000,000 872,000,000 89,000,000 95,000,000 733,000,000               
          right-of-use assets obtained under operating leases
        41,000,000  17,000,000 27,000,000 87,000,000 28,000,000 84,000,000 14,000,000 32,000,000 18,000,000 26,000,000       71,000,000 63,000,000 24,000,000               
          right-of-use assets obtained under finance leases
        2,000,000  3,000,000 1,000,000 13,000,000    2,000,000 1,000,000       1,000,000 3,000,000 4,000,000               
          issuance of common stock under dividend reinvestment plan
        54,000,000 55,000,000 55,000,000 57,000,000 55,000,000 56,000,000 34,000,000 33,000,000                           
          storm damage and reliability reserve accruals
                                          
          loss on extinguishment of debt
                                          
          retail fuel cost under recovery – long-term
                -265,000,000 -346,000,000 454,000,000 -972,000,000 -599,000,000 -130,000,000                     
          -fossil fuel for generation
         -53,000,000    135,000,000 60,000,000 -52,000,000 54,000,000 -105,000,000 -203,000,000              53,000,000          
          -natural gas cost under recovery
                   -30,000,000 -54,000,000 -40,000,000 53,000,000 2,000,000 -487,000,000                  
          business acquisition
                                         
          proceeds from dispositions
         -1,000,000   25,000,000   39,000,000 23,000,000 103,000,000 1,000,000   135,000,000 5,000,000 20,000,000                  
          payments pursuant to ltsas
                   -40,000,000 -44,000,000 -37,000,000 -31,000,000 -54,000,000 -60,000,000 -48,000,000 -65,000,000 -26,000,000 -75,000,000 -54,000,000 -30,000,000 -73,000,000 -57,000,000 -77,000,000 -55,000,000        
          purchase of membership interests from noncontrolling interests
                                   -129,000,000     
          cash, cash equivalents, and restricted cash at beginning of year
                                          
          cash, cash equivalents, and restricted cash at end of year
                                          
          accrued property additions at year-end
                                          
          ltsa credits utilized from the sale of spare parts
                                          
          decrease in notes payable
          -843,000,000   -139,000,000                             
          reassessment of right-of-use assets under operating leases
                  40,000,000                     
          utilization of federal tax credit carryforward
                                          
          estimated loss on plant vogtle units 3 and 4
                  -70,000,000   264,000,000 460,000,000 48,000,000                 
          utilization of federal tax credits
                                          
          capital contributions from noncontrolling interests
               9,000,000 21,000,000 73,000,000 72,000,000 30,000,000 313,000,000 1,000,000   6,000,000 123,000,000 1,202,000,000 8,000,000 6,000,000 2,000,000 71,000,000 188,000,000 48,000,000 131,000,000     
          adjustments to reconcile consolidated net income to net cash provided from operating activities —
                                          
          utilization of federal investment tax credits
                85,000,000   -15,000,000   32,000,000                    
          storm damage accruals
                14,000,000   53,000,000 55,000,000 52,000,000 54,000,000 58,000,000 54,000,000                  
          natural gas cost under recovery – long-term
                   15,000,000 30,000,000 162,000,000  66,000,000 -185,000,000                  
          net cash provided from operating activities
                2,840,000,000 2,056,000,000 844,000,000 1,438,000,000 1,987,000,000 1,592,000,000 2,177,000,000 1,662,000,000 1,242,000,000    2,368,000,000 2,326,000,000 1,749,000,000 1,509,000,000 2,511,000,000 1,845,000,000 897,000,000 2,147,000,000 1,250,000,000 865,000,000 2,981,000,000 1,194,000,000 913,000,000 1,103,000,000 
          capital expenditures
                   
          free cash flows
                2,840,000,000 2,056,000,000 844,000,000 1,438,000,000 1,987,000,000 1,592,000,000 2,177,000,000 1,662,000,000 1,242,000,000    2,368,000,000 2,326,000,000 1,749,000,000 1,509,000,000 2,511,000,000 1,845,000,000 897,000,000 2,147,000,000 1,250,000,000 865,000,000 2,981,000,000 1,194,000,000 913,000,000 1,103,000,000 
          net cash provided from financing activities
                        1,734,000,000      -393,000,000 629,000,000 -305,000,000 580,000,000 1,025,000,000 2,590,000,000 10,371,000,000 682,000,000 -571,000,000 166,000,000 596,000,000 43,000,000 
          net cash provided from (used for) financing activities
                 1,141,000,000 454,000,000  -20,000,000 -193,000,000                     
          cash paid (received) during the period for —
                                          
          assets
                                          
          current assets:
                                          
          cash and cash equivalents
                            1,548,000,000              
          receivables —
                                          
          customer accounts
                                          
          unbilled revenues
                            8,000,000              
          under recovered fuel clause revenues
                                          
          other accounts and notes
                                          
          accumulated benefit from uncollectible accounts
                            3,000,000              
          materials and supplies
                            -28,000,000              
          fossil fuel for generation
                            2,000,000              
          natural gas for sale
                            207,000,000              
          prepaid expenses
                            -264,000,000              
          assets from risk management activities, net of collateral
                            9,000,000              
          regulatory assets – asset retirement obligations
                            374,000,000              
          natural gas cost under recovery
                                          
          other regulatory assets
                            50,000,000              
          other current assets
                            70,000,000              
          total current assets
                            1,565,000,000              
          property, plant, and equipment:
                                          
          in service
                            101,000,000              
          less: accumulated depreciation
                            -224,000,000              
          plant in service, net of depreciation
                            325,000,000              
          other utility plant
                                          
          nuclear fuel, at amortized cost
                            -22,000,000              
          construction work in progress
                            236,000,000              
          total property, plant, and equipment
                            539,000,000              
          other property and investments:
                                          
          goodwill
                            -2,000,000              
          nuclear decommissioning trusts, at fair value
                            23,000,000              
          equity investments in unconsolidated subsidiaries
                            -17,000,000              
          other intangible assets, net of amortization of 350 and 340, respectively
                                          
          miscellaneous property and investments
                            -111,000,000              
          total other property and investments
                            -121,000,000              
          deferred charges and other assets:
                                          
          operating lease right-of-use assets, net of amortization
                            -44,000,000              
          deferred charges related to income taxes
                            2,000,000              
          prepaid pension costs
                                          
          unamortized loss on reacquired debt
                            -6,000,000              
          deferred under recovered fuel clause revenues
                                          
          regulatory assets – asset retirement obligations, deferred
                                          
          other regulatory assets, deferred
                            454,000,000              
          other deferred charges and assets
                            15,000,000              
          total deferred charges and other assets
                            741,000,000              
          total assets
                            2,724,000,000              
          mark-to-market adjustments
                   -47,000,000            -60,000,000   -81,000,000        
          gain on dispositions
                     -20,000,000                     
          -retail fuel cost over recovery
                      -4,000,000   -16,000,000    26,000,000 7,000,000 3,000,000 -24,000,000 -65,000,000 -122,000,000        
          business acquisitions, net of cash acquired
                      -345,000,000     -18,000,000 -46,000,000 30,000,000 -42,000,000 -1,020,000,000 -8,616,000,000       
          contributions from noncontrolling interests
                      89,000,000                  
          contributions of wind turbine equipment
                      82,000,000                  
          right-of-use assets obtained under leases
                   126,000,000 12,000,000 3,000,000 2,000,000 14,000,000 76,000,000                  
          other intangible assets, net of amortization of 331 and 307, respectively
                                          
          other intangible assets, net of amortization of 326 and 307, respectively
                                          
          other intangible assets, net of amortization of 317 and 307, respectively
                                          
          impairment charges
                      2,000,000     110,000,000 36,000,000             
          (gain) loss on dispositions
                        -41,000,000    -5,000,000              
          storm damage reserve accruals
                         54,000,000                 
          loss on dispositions
                         -1,000,000 3,000,000 -38,000,000               
          proceeds from dispositions and asset sales
                         4,000,000 1,000,000 982,000,000 36,000,000              
          investment in unconsolidated subsidiaries
                         -1,000,000 -1,000,000 -77,000,000 -7,000,000 -30,000,000 -33,000,000 -30,000,000 -18,000,000 -35,000,000 -81,000,000        
          -natural gas for sale
                          -64,000,000 246,000,000 -206,000,000              
          estimated loss on plants under construction
                            1,000,000 -7,000,000             
          noncash transactions — accrued property additions at end of period
                            -35,000,000 58,000,000 173,000,000 894,000,000 176,000,000 51,000,000 578,000,000 29,000,000 -182,000,000 731,000,000 138,000,000 -2,000,000 347,000,000 450,000,000 
          customer accounts receivable
                            158,000,000              
          energy marketing receivables
                            -25,000,000              
          other accounts and notes receivable
                            -63,000,000              
          assets held for sale
                            -41,000,000              
          other intangible assets, net of amortization of 265 and 235 at september 30, 2019 and december 31, 2018, respectively
                                          
          leveraged leases
                            -14,000,000              
          assets held for sale, deferred
                            -54,000,000              
          other intangible assets, net of amortization of 253 and 235 at june 30, 2019 and december 31, 2018, respectively
                                          
          dispositions
                             2,273,000,000             
          preferred stock
                                          
          preferred and preference stock
                                         
          estimated loss on kemper igcc
                               37,000,000 28,000,000 3,012,000,000 108,000,000 88,000,000 81,000,000 53,000,000 150,000,000 23,000,000 9,000,000 380,000,000 
          asset dispositions
                               135,000,000           
          hedge settlements
                                   -35,000,000       
          investment in restricted cash
                                -3,000,000 -13,000,000 7,858,000,000 -8,319,000,000 -289,000,000     
          distribution of restricted cash
                                6,000,000 1,000,000 26,000,000 97,000,000 357,000,000 292,000,000    9,000,000 
          net change in cash and cash equivalents
                                408,000,000 339,000,000 -881,000,000 772,000,000 1,143,000,000 -650,000,000 296,000,000 -299,000,000 402,000,000 -69,000,000 
          cash and cash equivalents at beginning of period
                                1,975,000,000 1,404,000,000 710,000,000 659,000,000 
          cash and cash equivalents at end of period
                                408,000,000 339,000,000 1,094,000,000 772,000,000 1,143,000,000 754,000,000 296,000,000 -299,000,000 1,112,000,000 590,000,000 
          income taxes receivable, non-current
                                         
          preference stock
                                          
          investment tax credits
                                          
          -mirror cwip
                                      17,000,000 42,000,000 40,000,000  
          prepaid long-term service agreement
                                   -43,000,000 -33,000,000 -49,000,000 -56,000,000 -73,000,000 -37,000,000 -64,000,000 
          interest-bearing refundable deposits
                                         
          -fossil fuel stock
                                    39,000,000 31,000,000 103,000,000 60,000,000 76,000,000 441,000,000 
          long-term debt issuances
                                    10,041,000,000 1,997,000,000 917,000,000 2,525,000,000 550,000,000 1,251,000,000 
          common stock issuances
                                    1,113,000,000 270,000,000 20,000,000 4,000,000 112,000,000 128,000,000 
          common stock repurchased
                                        -115,000,000 -4,000,000 
          -retail fuel cost over recovery - short-term
                                     25,000,000     
          plant acquisitions
                                     -114,000,000     
          cash paid (received) during the period for --
                                          
          interest-bearing refundable deposit
                                          
          payment of dividends on preferred and preference stock of subsidiaries
                                      -12,000,000 -19,000,000 -17,000,000 -17,000,000 
          redemptions and repurchases—
                                          
          redemptions —
                                          
          noncash transactions — capital lease obligation
                                          
          interest-bearing refundable deposit related to asset sale
                                         75,000,000