7Baggers

TC Energy Corporation
(NYSE:TRP) 

TRP stock logo

TC Energy Corporation operates as an energy infrastructure company in North America. It operates through Canadian Natural Gas Pipelines, U.S. Natural Gas Pipelines, Mexico Natural Gas Pipelines, Liquids Pipelines, and Power and Storage segments. The company builds and operates 93,400 km network of n...

Founded: 1951
Full Time Employees: 7,305
Sector: Energy
Industry: Oil & Gas Midstream

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Quarterly
Annual
    Unit: USD2025-09-30 2025-06-30 2025-03-31 2025-02-14 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2020-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-03-31 2016-07-22 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2013-09-30 2013-06-30 2013-04-26 2012-09-30 2012-04-27 2006-10-31 2006-07-27 2006-01-31 2005-09-30 
                                           
      revenues
                                         1,771,000,000 642,000,000 
      canadian natural gas pipelines
    1,478,000,000 1,455,000,000 1,371,000,000 1,404,000,000 1,395,000,000 1,417,000,000 1,384,000,000 1,344,000,000 1,303,000,000 1,297,000,000 1,267,000,000 1,234,000,000 1,175,000,000 1,088,000,000 1,145,000,000 1,129,000,000 1,126,000,000 1,188,000,000 283,000,000 956,000,000 269,000,000 1,266,000,000 884,000,000                 
      u.s. natural gas pipelines
    1,637,000,000 1,704,000,000 1,858,000,000 1,696,000,000 1,503,000,000 1,468,000,000 1,672,000,000 1,671,000,000 1,473,000,000 1,376,000,000 1,638,000,000 1,449,000,000 1,397,000,000 1,449,000,000 1,401,000,000 1,275,000,000 1,206,000,000 1,286,000,000 626,000,000 1,211,000,000 792,000,000 1,326,000,000 1,091,000,000                 
      mexico natural gas pipelines
    426,000,000 360,000,000 226,000,000 221,000,000 218,000,000 217,000,000 214,000,000 221,000,000 213,000,000 207,000,000 201,000,000 179,000,000 156,000,000 152,000,000 149,000,000 153,000,000 149,000,000 154,000,000 125,000,000 152,000,000 116,000,000 159,000,000 151,000,000                 
      power and energy solutions
    161,000,000 221,000,000 162,000,000 248,000,000 242,000,000 225,000,000 239,000,000 268,000,000 236,000,000 268,000,000 318,000,000                             
      corporate
    2,000,000 4,000,000 6,000,000 8,000,000               33,000,000                     
      income from equity investments
    345,000,000 330,000,000 305,000,000 450,000,000 461,000,000 341,000,000 356,000,000 521,000,000 305,000,000 248,000,000 291,000,000 322,000,000 236,000,000 205,000,000 217,000,000 265,000,000 157,000,000 85,000,000  206,000,000  222,000,000 80,000,000  90,000,000    160,000,000 159,000,000 177,000,000 153,000,000 93,000,000 71,000,000 60,000,000     
      operating and other expenses
                                           
      plant operating costs and other
    1,151,000,000 1,182,000,000 1,010,000,000 1,201,000,000 1,346,000,000 1,330,000,000 1,233,000,000 1,343,000,000 1,271,000,000 1,216,000,000 1,411,000,000 1,342,000,000 1,173,000,000 1,006,000,000 1,095,000,000 1,160,000,000 959,000,000 1,049,000,000  907,000,000  1,011,000,000 874,000,000  906,000,000    810,000,000 674,000,000 650,000,000 648,000,000 641,000,000 758,000,000 707,000,000     
      commodity purchases resold
    54,000,000 49,000,000 50,000,000 82,000,000 182,000,000 185,000,000 155,000,000 144,000,000 178,000,000 108,000,000 105,000,000 128,000,000 173,000,000 128,000,000 85,000,000     114,000,000  249,000,000 597,000,000  506,000,000    414,000,000 388,000,000 299,000,000 283,000,000 376,000,000 337,000,000 179,000,000     
      property taxes
    215,000,000 218,000,000 224,000,000 207,000,000 235,000,000 236,000,000 226,000,000 230,000,000 218,000,000 222,000,000 214,000,000 214,000,000 213,000,000 207,000,000 191,000,000 191,000,000 196,000,000 178,000,000  181,000,000  140,000,000 150,000,000  127,000,000    118,000,000 113,000,000 138,000,000 106,000,000 109,000,000       
      depreciation and amortization
    701,000,000 671,000,000 678,000,000 639,000,000 713,000,000 717,000,000 719,000,000 717,000,000 690,000,000 694,000,000 670,000,000 653,000,000 635,000,000 626,000,000 634,000,000 610,000,000 633,000,000 652,000,000  621,000,000  681,000,000 535,000,000 139,900,000 452,000,000    416,000,000 403,000,000 366,000,000 356,000,000 367,000,000 342,000,000 344,000,000     
      net gain on sale of assets
        572,000,000 48,000,000           17,000,000                       
      financial charges
                                         211,000,000  
      interest expense
    847,000,000 847,000,000 840,000,000 679,000,000 878,000,000 843,000,000 837,000,000 845,000,000 865,000,000 791,000,000 722,000,000 666,000,000 620,000,000 580,000,000 611,000,000 596,000,000 583,000,000 530,000,000  588,000,000  603,000,000 527,000,000  380,000,000    323,000,000 304,000,000 235,000,000 252,000,000 258,000,000 249,000,000 242,000,000     
      allowance for funds used during construction
    -55,000,000 -114,000,000 -248,000,000 -233,000,000 -210,000,000 -184,000,000 -157,000,000 -132,000,000 -164,000,000 -148,000,000 -115,000,000 -116,000,000 -63,000,000 -75,000,000 -72,000,000 -81,000,000 -64,000,000 -95,000,000 120,000,000  139,000,000                   
      foreign exchange losses
    -30,000,000 -69,000,000 -43,000,000 69,000,000 38,000,000 67,000,000 -27,000,000 -89,000,000 45,000,000 -169,000,000                              
      interest income and other
    -47,000,000 -49,000,000 -51,000,000 -120,000,000 -89,000,000 -69,000,000 -77,000,000 -121,000,000 -63,000,000 -16,000,000 -53,000,000 242,000,000 43,000,000 -61,000,000 -87,000,000 76,000,000 -127,000,000 -373,000,000   163,000,000 215,000,000          11,000,000 -13,000,000 -34,000,000 -31,000,000     
      income from continuing operations before income taxes
    1,213,000,000 1,339,000,000 1,468,000,000 1,503,000,000                    460,500,000                
      income tax expense (recovery) from continuing operations
                                           
      current
    118,000,000 23,000,000 83,000,000 176,000,000 186,000,000 111,000,000 150,000,000 607,000,000 97,000,000 115,000,000 -64,000,000 110,000,000 94,000,000 275,000,000 -114,000,000 152,000,000 58,000,000 -35,000,000  112,000,000  146,000,000 50,000,000  12,000,000    41,000,000 22,000,000  -36,000,000 79,000,000 6,000,000 56,000,000   121,000,000  
      deferred
    127,000,000 314,000,000 210,000,000 47,000,000 165,000,000 89,000,000 143,000,000 -398,000,000 37,000,000 143,000,000 60,000,000 12,000,000 54,000,000 48,000,000 392,000,000 -17,000,000 89,000,000 151,000,000  105,000,000  59,000,000 71,000,000      165,000,000 217,000,000 193,000,000 134,000,000 36,000,000 128,000,000 73,000,000     
      net income from continuing operations
    968,000,000 1,002,000,000 1,175,000,000 1,280,000,000                                  350,000,000  
      net income from discontinued operations, net of tax
    -204,000,000 -29,000,000  -98,000,000                                    
      net income
    764,000,000 973,000,000 1,175,000,000 1,182,000,000 1,651,000,000 1,149,000,000 1,397,000,000 1,615,000,000 -173,000,000 279,000,000  870,000,000 931,000,000 400,000,000 1,158,000,000 818,000,000 1,020,000,000 1,232,000,000 839,000,000 1,223,000,000 1,146,000,000 719,000,000 868,000,000 307,100,000  471,000,000 494,000,000 469,000,000 526,000,000 506,000,000 534,000,000 408,000,000 492,000,000 411,000,000 401,000,000   350,000,000  
      yoy
    -53.73% -15.32% -15.89% -26.81% -1054.34% 311.83%  85.63% -118.58% -30.25%  6.36% -8.73% -67.53% 38.02% -33.12% -10.99% 71.35% -3.34% 298.24%  52.65% 75.71% -34.52%  -6.92% -7.49% 14.95% 6.91% 23.11% 33.17%   17.43%      
      qoq
    -21.48% -17.19% -0.59% -28.41% 43.69% -17.75% -13.50% -1033.53% -162.01%   -6.55% 132.75% -65.46% 41.56% -19.80% -17.21% 46.84% -31.40% 6.72% 59.39% -17.17% 182.64%   -4.66% 5.33% -10.84% 3.95% -5.24% 30.88% -17.07% 19.71% 2.49%      
      net income margin %
    Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% NaN% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% NaN% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% NaN% NaN% Infinity% NaN% 
      net income attributable to non-controlling interests
    127,000,000 112,000,000 169,000,000 183,000,000 168,000,000 159,000,000 171,000,000 128,000,000 1,000,000 6,000,000 9,000,000 8,000,000 9,000,000 11,000,000 8,000,000 8,000,000 6,000,000 69,000,000  57,000,000   94,000,000      43,000,000 25,000,000 33,000,000 23,000,000 31,000,000 29,000,000 35,000,000     
      net income attributable to controlling interests
    637,000,000 861,000,000 1,006,000,000 999,000,000 1,483,000,000 990,000,000 1,226,000,000 1,487,000,000 -174,000,000 273,000,000  862,000,000 922,000,000 389,000,000 1,150,000,000 810,000,000 1,014,000,000 1,163,000,000 780,000,000 1,166,000,000 1,045,000,000 1,133,000,000 774,000,000   425,000,000 454,000,000 410,000,000 483,000,000 481,000,000 501,000,000 385,000,000 461,000,000 382,000,000 366,000,000     
      preferred share dividends
    28,000,000 28,000,000 28,000,000 28,000,000 26,000,000 27,000,000 23,000,000 24,000,000 23,000,000 23,000,000 22,000,000 21,000,000 33,000,000 31,000,000 32,000,000 31,000,000 32,000,000 39,000,000  41,000,000  41,000,000 40,000,000  23,000,000    25,000,000 24,000,000 20,000,000 20,000,000 15,000,000 13,000,000 14,000,000   5,000,000  
      net income attributable to common shares
    609,000,000 833,000,000 978,000,000 971,000,000 1,457,000,000 963,000,000 1,203,000,000 1,463,000,000 -197,000,000 250,000,000  841,000,000 889,000,000 358,000,000 1,118,000,000 779,000,000 982,000,000 1,124,000,000 739,000,000 1,125,000,000 1,004,000,000 1,092,000,000 734,000,000   402,000,000 429,000,000 387,000,000 458,000,000 457,000,000 481,000,000 365,000,000 446,000,000 369,000,000 352,000,000     
      amounts attributable to common shares
                                           
      net income attributable to controlling interests from continuing operations
    841,000,000 890,000,000 1,006,000,000                                     
      net income attributable to common shares from continuing operations
    813,000,000 862,000,000 978,000,000 1,069,000,000                                    
      net income per common share - basic and diluted
                             570,000 600,000 550,000            
      continuing operations
    780,000 830,000 940,000 1,030,000                    0.81              0.72  
      discontinued operations
    -200,000 -30,000  -90,000                                    
      weighted-average number of common shares
                                           
      basic
    1,040,000,000 1,040,000,000 1,039,000,000 1,038,000,000 1,038,000,000 1,037,000,000 1,037,000,000 1,037,000,000 1,035,000,000 1,027,000,000 1,016,000,000 1,000,000,000 983,000,000 981,000,000 980,000,000   940,000,000  927,000,000  915,000,000 885,000,000  708,000,000    709,000,000 708,000,000 707,000,000 707,000,000 706,000,000 705,000,000 704,000,000     
      diluted
    1,040,000,000 1,040,000,000 1,040,000,000 1,038,000,000 1,038,000,000 1,037,000,000 1,037,000,000 1,037,000,000 1,035,000,000 1,027,000,000 1,016,000,000 1,000,000,000 984,000,000 982,000,000 981,000,000   940,000,000  928,000,000  915,000,000 886,000,000  708,000,000    710,000,000 710,000,000 708,000,000 708,000,000 707,000,000 706,000,000 705,000,000     
      impairment of equity investment
            -1,244,000,000 -843,000,000 -3,048,000,000                             
      net income attributable to controlling interest from continuing operations
       1,097,000,000                                    
      liquids pipelines
        725,000,000 758,000,000 734,000,000 732,000,000 715,000,000 682,000,000 617,000,000 691,000,000 692,000,000 668,000,000 654,000,000 563,000,000 516,000,000 544,000,000 491,000,000 811,000,000 460,000,000 753,000,000 623,000,000  469,000,000 287,000,000 250,000,000 246,000,000 435,000,000 387,000,000          
      goodwill and asset impairment charges and other
        21,000,000      -118,000,000   571,000,000                          
      income before income taxes
        2,002,000,000 1,349,000,000 1,690,000,000 1,824,000,000 -39,000,000 537,000,000  992,000,000 1,079,000,000 723,000,000 1,436,000,000 953,000,000 1,167,000,000 1,348,000,000 1,113,000,000 1,440,000,000 1,382,000,000 757,000,000 989,000,000   694,000,000 744,000,000 676,000,000 732,000,000 745,000,000 724,000,000 506,000,000 607,000,000 545,000,000 530,000,000    307,000,000 
      income tax expense
                                           
      net income per common share
                        1,090,000                   
      basic and diluted
        1,400,000 930,000 1,160,000 1,410,000 -190,000 240,000  840,000 900,000 360,000  800,000    1,210,000   830,000  -3,470,000    650,000 640,000 680,000 520,000 630,000 520,000 500,000     
      goodwill impairment charge
                                           
      operating and other incomes
                                           
      gain on sale of assets
                       68,000,000         9,000,000           
      foreign exchange (gain)/loss
              -132,000,000                             
      (loss)/income before income taxes
              -1,420,000,000                             
      income tax (recovery)/ expense
                                           
      net (loss)/income
              -1,416,000,000                             
      net (loss)/income attributable to controlling interests
              -1,425,000,000                             
      net (loss)/income attributable to common shares
              -1,447,000,000                             
      net (loss)/income per common share
                                           
      basic
              -1,420,000                             
      diluted
              -1,420,000                             
      power and storage
               246,000,000 217,000,000 143,000,000 235,000,000 120,000,000 185,000,000 125,000,000 27,000,000 242,000,000 48,000,000                   
      revenues - sum
               3,799,000,000 3,637,000,000 3,500,000,000  3,240,000,000 3,182,000,000   3,372,000,000  3,904,000,000 3,424,000,000  2,851,000,000    2,616,000,000 2,451,000,000 2,204,000,000 2,009,000,000 2,252,000,000 2,126,000,000 1,911,000,000     
      operating and other expenses - sum
               2,337,000,000 2,194,000,000 2,538,000,000  1,961,000,000 1,797,000,000   1,823,000,000  2,882,000,000 2,156,000,000  5,736,000,000    1,758,000,000 1,578,000,000 1,453,000,000 1,393,000,000 1,493,000,000 1,437,000,000 1,230,000,000     
      financial charges - sum
               792,000,000 600,000,000 444,000,000  591,000,000 392,000,000                       
      income tax expense/
                                           
      asset impairment charge and other
                  -79,000,000  9,000,000                       
      net gain/(loss) on sale of assets
                  13,000,000                         
      net income per common share
                        1,090,000                   
      basic
                  1,140,000  1,000,000 1,200,000    1,190,000                  
      diluted
                  1,140,000  1,000,000 1,200,000    1,190,000                  
      weighted-average number of common shares
                                           
      basic and diluted
                   979,000,000 979,000,000                       
      net income on assets sold/held for sale
                     -93,000,000                      
      dividends declared per common share
                     810,000    690,000 690,000 0.25 520,000    480,000 480,000 460,000 460,000 460,000 440,000 440,000     
      total segmented earnings
                      1,585,000,000  1,666,000,000     1,019,000,000 994,000,000 1,008,000,000            
      net income per common share – basic and diluted
                      790,000  1,090,000                   
      •
                                           
      income tax expense - sum
                       217,000,000   121,000,000      206,000,000 239,000,000          
      specific items
                                           
      u.s. northeast power marketing contracts
                        12,000,000                   
      risk management activities1
                                           
      comparable earnings
                        987,000,000                   
      net income per common share
                        1,090,000                   
      risk management activities
                                           
      comparable earnings per common share
                        1,070,000                   
      energy
                         400,000,000 675,000,000  895,000,000 249,000,000 267,000,000 214,000,000 782,000,000 919,000,000 840,000,000 700,000,000 824,000,000 809,000,000 567,000,000     
      goodwill and other asset impairment charges
                         801,000,000                  
      gain on sales of assets
                         170,000,000                  
      deferred – u.s. tax reform and 2018 ferc actions
                                           
      operating revenues
                                           
      transportation revenues
                           1,054,400,000                
      transportation revenues-affiliated
                           47,500,000                
      storage revenues
                           171,400,000                
      storage revenues-affiliated
                           26,200,000                
      other revenues
                           35,400,000                
      total operating revenues
                           1,334,900,000                
      operating expenses
                                           
      operation and maintenance
                           652,100,000                
      operating and maintenance-affiliated
                           52,900,000                
      gain on sale of assets and impairment
                                           
      property and other taxes
                           75,300,000                
      total operating expenses
                           867,300,000            32,000,000 37,000,000   
      equity earnings in unconsolidated affiliates
                           60,500,000                
      operating income
                           528,100,000            84,000,000 46,000,000 562,000,000 325,000,000 
      yoy
                                           
      qoq
                                       82.61% -91.81% 72.92%  
      operating margin %
    NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% Infinity% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% Infinity% Infinity% Infinity% Infinity% 
      other income
                                           
      interest expense-affiliated
                                           
      other
                           29,300,000            15,000,000 11,000,000 19,000,000 29,000,000 
      total other deductions
                                           
      income taxes
                           153,000,000                
      income from continuing operations
                           307,500,000                
      income from discontinued operations-net of taxes
                                           
      less: net income attributable to noncontrolling interest
                           39,900,000                
      net income attributable to cpg
                           267,200,000                
      amounts attributable to cpg:
                                           
      basic earnings per share
                           0.81                
      diluted earnings per share
                           0.81                
      basic average common shares outstanding
                           328.5                
      diluted average common shares
                           329.1                
      natural gas pipelines
                            1,487,000,000 528,000,000 525,000,000 595,000,000 1,399,000,000 1,145,000,000 1,083,000,000 1,031,000,000 1,157,000,000 1,058,000,000 1,085,000,000     
      asset impairment charges
                            3,745,000,000               
      gain on assets held for sale/sold
                                           
      income tax (recovery)/expense
                                           
      interest income and other income
                             16,000,000 81,000,000             
      financial charges/
                                           
      oil pipelines
                                  281,000,000 278,000,000 271,000,000 259,000,000 259,000,000     
      income taxes (recovery)/expense
                                           
      income taxes (recovery)/expense - sum
                                   98,000,000        
      income taxes expense
                                           
      income taxes expense - sum
                                    115,000,000 134,000,000 129,000,000     
      bruce power
                                       72,000,000 3,094,000,000   
      power
                                       478,000,000 439,000,000  165,000,000 
      operations and maintenance
                                           
      fuel
                                       3,000,000 2,000,000   
      supplemental rent
                                           
      revenues, net of operating expenses
                                       181,000,000 126,000,000   
      financial charges under equity accounting
                                           
      transcanada’s proportionate share
                                       69,000,000 39,000,000   
      adjustments
                                       3,000,000 2,000,000  2,000,000 
      transcanada’s operating income from
                                           
      bruce power – other information
                                           
      plant availability
                                           
      bruce a
                                       86,000,000 63,000,000   
      bruce b
                                       92,000,000 94,000,000   
      combined bruce power
                                       90,000,000 84,000,000   
      sales volumes
                                           
      bruce a – 100 per cent
                                       2,850,000,000    
      bruce b – 100 per cent
                                       6,540,000,000    
      combined bruce power – 100 per cent
                                       9,390,000,000    
      results per mwh
                                           
      bruce a revenues
                                       59,000,000 58,000,000   
      bruce b revenues
                                       48,000,000 48,000,000   
      combined bruce power revenues
                                       51,000,000 51,000,000   
      percentage of output sold to spot market
                                       33,000,000 39,000,000   
      cost of sales
                                         368,000,000  
      other costs and expenses
                                       -32,000,000 -30,000,000 576,000,000  
      depreciation
                                       -6,000,000 -5,000,000 265,000,000  
      supply
                                           
      generation
                                       599,000,000 438,000,000   
      purchased
                                       934,000,000 667,000,000   
      sundance a & b and sheerness ppas
                                       3,283,000,000 2,846,000,000   
      other purchases
                                       455,000,000 519,000,000   
      contracted vs. spot
                                           
      contracted
                                       2,818,000,000 2,407,000,000   
      spot
                                       1,519,000,000 1,396,000,000   
      revenue
                                           
      yoy
                                           
      qoq
                                           
      western power operations
                                       4,337,000,000 3,803,000,000   
      eastern power operations
                                       1,973,000,000 1,616,000,000   
      power lp investment
                                           
      total
                                       9,758,000,000 8,513,000,000   
      all plants, excluding bruce power
                                       97,000,000 93,000,000   
      all plants
                                       93,000,000 85,000,000   
      transcanada’s operating income from bruce power
                                        41,000,000   
      bruce power - other information
                                           
      bruce a - 100 per cent
                                        2,070,000,000   
      bruce b - 100 per cent
                                        6,630,000,000   
      combined bruce power - 100 per cent
                                        8,700,000,000   
      other incomes/
                                           
      financial charges of joint ventures
                                         17,000,000  
      equity income
                                           
      gain on sale of paiton energy
                                           
      gains related to power lp
                                           
      gain on sale of pipelines lp units
                                           
      gain on sale of millennium
                                           
      income from continuing operations before income
                                           
      taxes and non-controlling interests
                                         517,000,000  
      future
                                         22,000,000  
      non-controlling interests
                                           
      net income from discontinued operations
                                           
      net income per share
                                           
      basic
                  1,140,000  1,000,000 1,200,000    1,190,000                  
      discontinued operations
    -200,000 -30,000  -90,000                                    
      diluted
                                           
      average shares outstanding
                                           
      basic
                                         487.1  
      diluted
                                         490.4  
      cash costs
                                           
      non-cash costs
                                           
      transcanada’s interest in bruce power income before income taxes
                                          97,000,000 
      transcanada’s income from bruce power before income taxes
                                          99,000,000 
      western operations results-at-a-glance
                                           
      operating and other income
                                          32,000,000 
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-04-16 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2020-12-31 2019-06-30 2018-03-31 2014-09-30 2013-09-30 2013-06-30 2013-04-26 2011-11-01 2010-11-03 2010-02-23 2009-12-31 2009-11-04 2009-07-30 2009-06-12 2009-02-03 2008-12-31 2008-10-28 2008-07-31 2008-04-25 2008-01-29 2007-10-30 2007-06-30 2007-03-31 2007-01-30 2006-12-31 2006-10-31 2006-07-27 2006-04-28 2006-01-31 2005-12-31 2005-09-30 2005-06-30 
                                                        
        assets
                                                        
        current assets
            3,316,000,000                         3,399,000,000                   
        cash and cash equivalents
      1,802,000,000 1,422,000,000 1,962,000,000 801,000,000 3,797,000,000 2,474,000,000  3,193,000,000 3,678,000,000 1,970,000,000 1,091,000,000 620,000,000 2,160,000,000 1,504,000,000 1,073,000,000 673,000,000 2,857,000,000 2,888,000,000 1,530,000,000 666,000,000 1,267,000,000 698,000,000 645,000,000 674,000,000 443,000,000 596,000,000 1,094,000,000 997,000,000 997,000,000 2,406,000,000 3,482,000,000  1,308,000,000 1,308,000,000 752,000,000 1,959,000,000 639,000,000              
        accounts receivable
      2,474,000,000 2,555,000,000 2,586,000,000 2,611,000,000 3,526,000,000 4,025,000,000  4,218,000,000 4,209,000,000 3,564,000,000 3,129,000,000 3,624,000,000 3,557,000,000 3,820,000,000 3,235,000,000 3,092,000,000 2,611,000,000 2,724,000,000 2,162,000,000 2,057,000,000 2,208,000,000 1,288,000,000 913,000,000 1,051,000,000 1,031,000,000 1,191,000,000 1,123,000,000 966,000,000 966,000,000 834,000,000 889,000,000  1,280,000,000 1,280,000,000 1,156,000,000 1,145,000,000 964,000,000 1,116,000,000 1,008,000,000 983,000,000 1,135,000,000 1,004,000,000 1,004,000,000 762,000,000 741,000,000 700,000,000 796,000,000 796,000,000 574,000,000 537,000,000 
        inventories
      837,000,000 822,000,000 777,000,000 747,000,000 1,053,000,000 1,015,000,000  1,100,000,000 982,000,000 1,229,000,000 1,046,000,000 936,000,000 1,080,000,000 1,045,000,000 965,000,000 724,000,000 743,000,000 758,000,000 629,000,000 442,000,000 384,000,000 267,000,000 238,000,000 224,000,000 231,000,000 428,000,000 452,000,000 511,000,000 511,000,000 491,000,000 488,000,000  489,000,000 489,000,000 514,000,000 549,000,000 503,000,000 497,000,000 426,000,000 466,000,000 478,000,000 392,000,000 392,000,000 277,000,000 249,000,000 219,000,000 281,000,000 281,000,000 241,000,000 239,000,000 
        other current assets
      2,382,000,000 2,166,000,000 1,713,000,000 1,339,000,000 2,526,000,000 2,263,000,000  2,689,000,000 2,503,000,000 2,857,000,000 2,357,000,000 2,152,000,000 2,103,000,000 1,681,000,000 1,912,000,000 1,717,000,000 2,510,000,000 1,975,000,000 880,000,000                                
        current assets of discontinued operations
      283,000,000 172,000,000 234,000,000 235,000,000                                               
        plant, property and equipment
      71,233,000,000 69,450,000,000 77,996,000,000 77,501,000,000 84,180,000,000 83,649,000,000 11,141,000,000 81,966,000,000 80,569,000,000 80,410,000,000 77,998,000,000 75,940,000,000 75,030,000,000 72,609,000,000 70,482,000,000 70,182,000,000 69,284,000,000 67,192,000,000 69,775,000,000 66,685,000,000 59,313,000,000     37,746,000,000 35,555,000,000 32,879,000,000 32,879,000,000 32,289,000,000 30,587,000,000 22,901,000,000 29,189,000,000 29,189,000,000 26,397,000,000 24,149,000,000 23,877,000,000 23,452,000,000 23,296,000,000 23,700,000,000 24,181,000,000 21,487,000,000 21,487,000,000 20,846,000,000 20,778,000,000 20,090,000,000 20,038,000,000 20,038,000,000 18,566,000,000 19,184,000,000 
        net investment in leases
      8,235,000,000 8,125,000,000 2,472,000,000 2,477,000,000 2,321,000,000 2,357,000,000  2,330,000,000 2,263,000,000 2,388,000,000 1,941,000,000 1,895,000,000 2,097,000,000                                      
        equity investments
      11,149,000,000 10,836,000,000 10,698,000,000 10,636,000,000 10,823,000,000 10,922,000,000 1,073,000,000 10,777,000,000 10,314,000,000 10,001,000,000 9,784,000,000 9,535,000,000 11,664,000,000 9,324,000,000 8,821,000,000 8,441,000,000 7,512,000,000 7,178,000,000 6,677,000,000 6,675,000,000 6,362,000,000 5,789,000,000 5,395,000,000 5,412,000,000 5,396,000,000                          
        restricted investments
      3,469,000,000 3,236,000,000 3,152,000,000 2,998,000,000 3,015,000,000 2,843,000,000  2,745,000,000 2,636,000,000 2,420,000,000 2,380,000,000 2,108,000,000 1,997,000,000 1,987,000,000 2,067,000,000 2,182,000,000 2,056,000,000 2,034,000,000 1,898,000,000 1,438,000,000 1,005,000,000                              
        regulatory assets
      2,906,000,000 2,822,000,000 2,793,000,000 2,682,000,000 2,608,000,000 2,563,000,000  2,445,000,000 2,330,000,000 2,224,000,000 2,104,000,000 1,910,000,000 2,019,000,000 1,904,000,000 1,825,000,000 1,767,000,000 1,884,000,000 1,827,000,000 1,753,000,000 1,471,000,000 1,334,000,000 1,569,000,000 1,924,000,000 1,921,000,000 1,915,000,000 1,419,000,000 1,491,000,000 1,524,000,000 1,524,000,000 1,644,000,000 1,594,000,000                    
        goodwill
      13,222,000,000 12,927,000,000 13,645,000,000 13,670,000,000 12,828,000,000 12,991,000,000  12,844,000,000 12,532,000,000 12,846,000,000 12,562,000,000 12,843,000,000 13,050,000,000 12,215,000,000 11,847,000,000 12,582,000,000 12,599,000,000 12,332,000,000 12,679,000,000 13,013,000,000 13,483,000,000 3,897,000,000 3,575,000,000 3,653,000,000 3,530,000,000 3,729,000,000 3,696,000,000 3,763,000,000 3,763,000,000 3,855,000,000 4,169,000,000 4,258,000,000 4,397,000,000 4,397,000,000 3,886,000,000 2,813,000,000 2,839,000,000 2,633,000,000 2,517,000,000 2,682,000,000 2,878,000,000 281,000,000 281,000,000        
        other long-term assets
      2,239,000,000 2,179,000,000 2,394,000,000 2,410,000,000 2,424,000,000 2,181,000,000 234,000,000 3,034,000,000 3,018,000,000 2,740,000,000 2,641,000,000 2,785,000,000 1,795,000,000 1,485,000,000 1,381,000,000 1,403,000,000 1,181,000,000 992,000,000 979,000,000                                
        long-term assets of discontinued operations
      3,000,000 125,000,000 123,000,000 136,000,000                                               
        liabilities
                                                        
        current liabilities
            2,602,000,000                         4,264,000,000                   
        notes payable
      2,390,000,000 2,418,000,000 1,529,000,000 387,000,000 422,000,000 1,563,000,000  381,000,000  244,000,000 2,578,000,000 6,262,000,000 6,238,000,000 5,466,000,000 5,465,000,000 5,166,000,000 3,172,000,000 1,692,000,000 4,176,000,000 4,568,000,000 3,658,000,000 1,749,000,000 1,688,000,000 2,900,000,000 1,474,000,000 1,865,000,000 1,613,000,000 1,687,000,000 1,687,000,000 1,324,000,000 1,041,000,000  1,702,000,000 1,702,000,000 874,000,000 1,133,000,000 373,000,000 421,000,000 1,021,000,000 728,000,000 1,532,000,000 467,000,000 467,000,000 513,000,000 509,000,000 329,000,000 962,000,000 962,000,000 383,000,000 1,079,000,000 
        accounts payable and other
      4,887,000,000 4,381,000,000 4,489,000,000 5,297,000,000 6,391,000,000 6,303,000,000  6,944,000,000 6,987,000,000 6,967,000,000 5,585,000,000 7,149,000,000 7,835,000,000 5,900,000,000 5,681,000,000 5,099,000,000 4,989,000,000 4,581,000,000 3,816,000,000 4,327,000,000 3,697,000,000 2,705,000,000 1,771,000,000 1,968,000,000 1,971,000,000                          
        dividends payable
      901,000,000 901,000,000 900,000,000 874,000,000 1,012,000,000 1,011,000,000  1,008,000,000 979,000,000 977,000,000 970,000,000 930,000,000 923,000,000 896,000,000 896,000,000 879,000,000 864,000,000 864,000,000 795,000,000 709,000,000 631,000,000                              
        accrued interest
      831,000,000 821,000,000 820,000,000 828,000,000 868,000,000 856,000,000  905,000,000 913,000,000 832,000,000 722,000,000 668,000,000 687,000,000 621,000,000 579,000,000 577,000,000 581,000,000 571,000,000 595,000,000 585,000,000 552,000,000 381,000,000 330,000,000 380,000,000 352,000,000 348,000,000 325,000,000 377,000,000 377,000,000 342,000,000 415,000,000  359,000,000 359,000,000 318,000,000 252,000,000 303,000,000 261,000,000 291,000,000 265,000,000 278,000,000 264,000,000 264,000,000 265,000,000 232,000,000 231,000,000 222,000,000 222,000,000 222,000,000 220,000,000 
        current portion of long-term debt
      2,870,000,000 3,119,000,000 2,473,000,000 2,955,000,000 4,390,000,000 3,685,000,000  3,086,000,000 2,938,000,000 2,114,000,000 2,735,000,000 1,898,000,000 1,082,000,000 1,599,000,000 1,302,000,000 1,320,000,000 7,373,000,000 6,013,000,000 1,972,000,000 2,777,000,000 3,406,000,000 1,742,000,000 971,000,000 1,477,000,000 1,660,000,000 1,083,000,000 455,000,000 478,000,000 478,000,000 678,000,000 570,000,000  786,000,000 786,000,000 545,000,000 537,000,000 895,000,000 556,000,000 706,000,000 759,000,000 494,000,000 616,000,000 616,000,000 415,000,000 313,000,000 533,000,000 393,000,000 393,000,000 379,000,000 391,000,000 
        current liabilities of discontinued operations
      420,000,000 102,000,000 113,000,000 170,000,000                                               
        regulatory liabilities
      5,767,000,000 5,527,000,000 5,485,000,000 5,303,000,000 5,229,000,000 5,068,000,000  4,995,000,000 4,806,000,000 4,733,000,000 4,729,000,000 4,520,000,000 4,397,000,000 4,251,000,000 4,267,000,000 4,300,000,000 4,143,000,000 4,107,000,000 4,148,000,000 3,976,000,000 4,473,000,000 218,000,000 238,000,000 226,000,000 275,000,000 292,000,000 332,000,000 385,000,000 385,000,000 430,000,000 490,000,000                    
        other long-term liabilities
      950,000,000 951,000,000 988,000,000 1,051,000,000 1,075,000,000 1,097,000,000 159,000,000 1,076,000,000 1,015,000,000 1,164,000,000 1,031,000,000 1,017,000,000 1,236,000,000 1,057,000,000 1,029,000,000 1,059,000,000 1,420,000,000 1,401,000,000 1,475,000,000 1,513,000,000 712,000,000 775,000,000 811,000,000 926,000,000 859,000,000                          
        deferred income tax liabilities
      7,540,000,000 7,233,000,000 7,209,000,000 6,884,000,000 7,870,000,000 7,767,000,000 1,373,000,000 8,470,000,000 8,125,000,000 8,427,000,000 8,140,000,000 7,648,000,000 6,949,000,000 6,501,000,000 6,213,000,000 6,142,000,000 5,419,000,000 5,251,000,000 5,806,000,000 5,965,000,000 5,529,000,000 5,141,000,000 4,163,000,000 4,088,000,000 4,001,000,000                          
        long-term debt
      44,364,000,000 43,340,000,000 45,891,000,000 44,976,000,000 55,601,000,000 49,146,000,000 7,879,000,000 50,607,000,000 49,976,000,000 52,731,000,000 46,074,000,000 39,645,000,000 40,918,000,000 39,990,000,000 36,977,000,000 37,341,000,000 35,097,000,000 35,790,000,000 34,913,000,000 35,116,000,000 30,995,000,000 22,391,000,000 20,066,000,000 18,222,000,000 18,266,000,000 17,027,000,000 17,928,000,000 16,186,000,000 16,186,000,000 16,730,000,000 17,545,000,000  15,368,000,000 15,368,000,000 14,287,000,000 11,945,000,000 12,037,000,000 12,377,000,000 11,374,000,000 11,766,000,000 12,945,000,000 10,887,000,000 10,887,000,000 10,306,000,000 10,411,000,000 10,249,000,000 9,640,000,000 9,640,000,000 9,781,000,000 10,014,000,000 
        junior subordinated notes
      11,738,000,000 10,550,000,000 12,099,000,000 11,048,000,000 11,957,000,000 10,594,000,000  10,496,000,000 10,287,000,000 10,497,000,000 10,307,000,000 10,495,000,000 10,634,000,000 10,074,000,000 9,831,000,000 8,939,000,000 8,948,000,000 8,800,000,000 8,498,000,000 7,261,000,000 7,177,000,000 1,120,000,000 1,028,000,000 1,050,000,000 1,015,000,000 1,030,000,000 1,020,000,000 1,036,000,000 1,036,000,000 1,061,000,000 1,151,000,000  1,213,000,000 1,213,000,000 1,048,000,000 1,006,000,000 1,015,000,000 975,000,000 983,000,000 1,050,000,000           
        long-term liabilities of discontinued operations
       114,000,000 110,000,000 110,000,000                                               
        equity
                                                        
        common shares, no par value
      30,199,000,000 30,158,000,000 30,136,000,000 30,101,000,000 30,025,000,000 30,002,000,000  30,002,000,000 30,002,000,000 30,002,000,000 29,627,000,000 28,995,000,000 28,647,000,000 26,891,000,000 26,860,000,000 26,716,000,000 26,622,000,000 26,618,000,000 24,488,000,000 23,795,000,000 21,703,000,000 12,197,000,000 12,136,000,000 12,131,000,000 12,106,000,000                          
        issued and outstanding:
                                                        
        preferred shares
      2,499,000,000 2,499,000,000 2,499,000,000 2,499,000,000 2,499,000,000 2,499,000,000  2,499,000,000 2,499,000,000 2,499,000,000 2,499,000,000 2,499,000,000 2,499,000,000 2,499,000,000 3,487,000,000 3,487,000,000 3,487,000,000 3,487,000,000 3,980,000,000 3,980,000,000 3,980,000,000 2,255,000,000 1,813,000,000 1,813,000,000 1,810,000,000                          
        accumulated deficit
      -6,026,000,000 -5,741,000,000 -5,147,000,000                                                
        accumulated other comprehensive income
      793,000,000 604,000,000 205,000,000 233,000,000 310,000,000 458,000,000  377,000,000 49,000,000 1,100,000,000 508,000,000  724,000,000                   -669,000,000      -373,000,000             
        controlling interests
      27,465,000,000 27,520,000,000 27,693,000,000 27,592,000,000 30,456,000,000 30,120,000,000  30,101,000,000 29,553,000,000 33,642,000,000 33,838,000,000 33,990,000,000 35,773,000,000 32,655,000,000 32,818,000,000 33,271,000,000 32,393,000,000 32,009,000,000 31,398,000,000 30,014,000,000 26,199,000,000 19,399,000,000 17,992,000,000 17,834,000,000 17,717,000,000 17,329,000,000                         
        non-controlling interests
      10,111,000,000 9,860,000,000 10,746,000,000 10,768,000,000 10,021,000,000 10,374,000,000  9,573,000,000 9,455,000,000 321,000,000 324,000,000 126,000,000 130,000,000 123,000,000 124,000,000 125,000,000 124,000,000 122,000,000 1,682,000,000 1,618,000,000 1,981,000,000 1,535,000,000 1,771,000,000 1,812,000,000 1,444,000,000 1,496,000,000      1,194,000,000                   
        common shares
                                     9,265,000,000      6,662,000,000 6,595,000,000 6,542,000,000 6,484,000,000 4,794,000,000 4,794,000,000 4,780,000,000 4,768,000,000 4,763,000,000 4,755,000,000 4,755,000,000 4,750,000,000 4,740,000,000 
        balance at beginning of period
      30,002,000,000 30,002,000,000 30,002,000,000  29,627,000,000 29,264,000,000  28,995,000,000  26,891,000,000 26,860,000,000  26,618,000,000 26,589,000,000   24,480,000,000 24,477,000,000      12,069,000,000 12,069,000,000 11,745,000,000                         
        shares issued:
                                                        
        exercise of stock options
      23,000,000     1,000,000  3,000,000  2,000,000 31,000,000  4,000,000 29,000,000   3,000,000 3,000,000                                 
        balance at end of period
      30,025,000,000 30,002,000,000 30,002,000,000  30,002,000,000 29,627,000,000  29,264,000,000  28,647,000,000 26,891,000,000  26,622,000,000 26,618,000,000   24,483,000,000 24,480,000,000      12,131,000,000 12,106,000,000 11,987,000,000                         
        balance at beginning and end of period
      2,499,000,000 2,499,000,000 2,499,000,000  2,499,000,000 2,499,000,000  2,499,000,000                                           
        additional paid-in capital
               728,000,000 728,000,000 722,000,000 720,000,000 717,000,000 717,000,000 729,000,000 736,000,000 734,000,000 2,000,000 5,000,000 10,000,000 405,000,000 406,000,000 404,000,000 376,000,000                          
        exercise and forfeitures of stock options
       4,000,000                                                 
        disposition of equity interests, net of transaction costs
       -33,000,000 11,000,000                                                
        reclassification of additional paid-in capital deficit to accumulated deficit
       29,000,000 -11,000,000                                                
        net income attributable to controlling interests
      1,483,000,000 990,000,000 1,226,000,000  -174,000,000 273,000,000  1,336,000,000  862,000,000 922,000,000  810,000,000 1,014,000,000   943,000,000 1,321,000,000      846,000,000 461,000,000 1,193,000,000                         
        common share dividends
      -996,000,000 -996,000,000 -996,000,000  -966,000,000 -956,000,000  -952,000,000  -912,000,000 -885,000,000  -851,000,000 -852,000,000   -762,000,000 -761,000,000      -650,000,000  -884,000,000                         
        preferred share dividends
      -26,000,000 -27,000,000 -21,000,000  -23,000,000 -23,000,000  -21,000,000  -21,000,000 -32,000,000  -32,000,000 -38,000,000   -38,000,000 -40,000,000      -37,000,000  -41,000,000                         
        spinoff of liquids pipelines business
                                                        
        other comprehensive income attributable to controlling interests
      -148,000,000 102,000,000 328,000,000  592,000,000 -395,000,000  -52,000,000  1,430,000,000 801,000,000  451,000,000 -274,000,000   -404,000,000 -305,000,000                                 
        impact of non-controlling interest
       -21,000,000                                                 
        equity attributable to controlling interests
      30,456,000,000 30,120,000,000 30,101,000,000  33,642,000,000 33,838,000,000  34,573,000,000  35,773,000,000 32,655,000,000  32,393,000,000 32,009,000,000   32,202,000,000 32,458,000,000      17,834,000,000 17,717,000,000 17,329,000,000                         
        equity attributable to non-controlling interests
                                                        
        net income attributable to non-controlling interests
      168,000,000 159,000,000 171,000,000  1,000,000 6,000,000  11,000,000  8,000,000 9,000,000  8,000,000 6,000,000   67,000,000 66,000,000                                 
        other comprehensive income attributable to non-controlling interests
      -125,000,000 131,000,000 235,000,000  7,000,000     8,000,000 4,000,000  2,000,000    -34,000,000 -65,000,000      57,000,000 20,000,000 8,000,000                         
        disposition of equity interests
      -104,000,000 588,000,000                                                 
        contributions from non-controlling interests
      11,000,000 5,000,000                                                 
        distributions declared to non-controlling interests
      -303,000,000 -82,000,000 -282,000,000  -11,000,000 -15,000,000  -21,000,000   -14,000,000      -56,000,000 -58,000,000                                 
        total equity
      40,477,000,000 40,494,000,000 39,674,000,000  33,963,000,000 34,162,000,000  34,795,000,000  35,903,000,000 32,778,000,000  32,517,000,000 32,131,000,000   33,932,000,000 34,211,000,000      19,646,000,000 19,161,000,000 18,825,000,000                         
        retained earnings
         -5,241,000,000 -2,378,000,000 -2,839,000,000  -2,777,000,000 -2,997,000,000 -687,000,000 476,000,000 819,000,000 3,183,000,000 3,254,000,000 3,261,000,000 3,773,000,000 3,523,000,000 3,596,000,000 5,367,000,000 3,534,000,000 1,859,000,000 5,360,000,000 5,001,000,000 4,846,000,000 4,809,000,000       3,809,000,000      3,220,000,000 3,026,000,000 2,892,000,000 2,811,000,000 2,724,000,000 2,724,000,000 2,611,000,000 2,474,000,000 2,386,000,000 2,269,000,000 2,269,000,000 2,069,000,000 1,790,000,000 
        three months ended december 31, 2024
                                                        
        revenues
                 1,638,000,000                                       
        intersegment revenues2
                                                        
        income from equity investments
                 93,000,000                                       
        operating costs2
                                                        
        depreciation and amortization
                 -232,000,000                                       
        segmented earnings
                                                        
        interest expense
                                                        
        allowance for funds used during construction
                                                        
        foreign exchange gains
                                                        
        interest income and other
                                                        
        income from continuing operations before income taxes
                                                        
        income tax (expense) recovery from continuing operations
                                                        
        net income from continuing operations
                                                        
        net income from discontinued operations, net of tax
                                                        
        net income
                                                        
        net (income) loss attributable to non-controlling interests
                                                        
        net income attributable to common shares
                                                        
        capital spending4
                                                        
        capital expenditures
                                                        
        capital projects in development
                                                        
        contributions to equity investments5
                                                        
        restricted cash
          6,191,000,000                                              
        dividend reinvestment and share purchase plan
          375,000,000 362,000,000  266,000,000                                           
        issuance of stock options, net of exercises
           3,000,000  3,000,000  3,000,000   2,000,000    2,000,000 3,000,000        1,000,000                         
        reclassification of additional paid-in capital deficit to retained earnings
                   -397,000,000   2,000,000 3,000,000                                 
        disposition of equity and non-controlling interests
                                                        
        non-controlling interests on acquisition of texas wind farms
           116,000,000  106,000,000                                           
        assets held for sale
           683,000,000  685,000,000            1,655,000,000                               
        liabilities related to assets held for sale
           382,000,000  384,000,000                                           
        shareholders’ equity
            3,751,000,000                    16,679,000,000 15,759,000,000 15,759,000,000 15,617,000,000 14,969,000,000                    
        disposition of equity interest, net of transaction costs
                                                        
        disposition of equity interest
                                                        
        three months ended december 31, 2023
                                                        
        intersegment revenues
                 29,000,000                                       
        plant operating costs and other3
                 -536,000,000                                       
        commodity purchase resold
                                                        
        property taxes
                 -110,000,000                                       
        goodwill and asset impairment charges and other
                                                        
        income before income taxes
                                                        
        income tax (expense) recovery
                                                        
        under public offering, net of issue costs
               1,754,000,000                                         
        redemption of shares
                -988,000,000   -493,000,000                                     
        redemption of preferred shares
                -12,000,000                                        
        loans receivable from affiliates
                   1,209,000,000 1,285,000,000 1,217,000,000                                   
        long-term loans receivable from affiliate
                  250,000,000 350,000,000 289,000,000                                    
        accumulated other comprehensive income/
                 955,000,000                                       
        three months ended december 31, 2022
                                                        
        1,267
                 1,667,000,000                                       
        impairment of equity investment
                                                        
        segmented (losses)/earnings
                 882,000,000                                       
        foreign exchange gain
                                                        
        income tax recovery
                                                        
        current assets - sum
                  8,900,000,000 9,259,000,000 8,470,000,000  8,721,000,000 8,345,000,000  5,676,000,000 4,577,000,000 3,355,000,000 2,432,000,000 2,765,000,000 2,451,000,000 3,008,000,000 3,441,000,000 3,175,000,000  4,236,000,000 5,717,000,000  3,600,000,000  2,729,000,000 4,054,000,000 2,374,000,000 2,305,000,000 1,927,000,000 1,976,000,000 2,079,000,000 2,092,000,000  1,646,000,000 1,509,000,000 1,561,000,000 1,566,000,000  1,358,000,000 1,139,000,000 
        current liabilities - sum
                  16,765,000,000 14,482,000,000 13,923,000,000  16,979,000,000 13,721,000,000  12,966,000,000 11,944,000,000 6,577,000,000 4,760,000,000 6,725,000,000 5,457,000,000 5,633,000,000 4,583,000,000 4,949,000,000  4,929,000,000 4,627,000,000  4,930,000,000  3,557,000,000 3,941,000,000 3,301,000,000 3,035,000,000 3,753,000,000 3,400,000,000 4,011,000,000 2,989,000,000  2,591,000,000 2,434,000,000 2,470,000,000 3,112,000,000  2,223,000,000 2,648,000,000 
        acquisition of tc pipelines, lp, net of transaction costs
                                                        
        keystone xl project-level credit facility retirement and issuance ofclass c interests
                   737,000,000                                     
        acquisition of tc pipelines, lp
                                                        
        repurchase of redeemable non-controlling interest
                   394,000,000                                     
        accumulated other comprehensive loss
                   -706,000,000 -1,507,000,000 -1,434,000,000 -1,975,000,000 -2,426,000,000 -2,439,000,000     -1,360,000,000 -1,384,000,000              -411,000,000 -369,000,000           
        other comprehensive loss attributable to controlling interests
                                                        
        other comprehensive loss attributable to non-controlling interests
                                                        
        long-term loans receivable from affiliates
                     238,000,000                                   
        redeemable non-controlling interest
                        633,000,000                                
        three months ended december 31, 2021
                                                        
        income/(loss) from equity investments
                                                        
        plant operating costs and other
                                                        
        asset impairment charge and other
                                                        
        gain on sale of assets
                                                        
        segmented earnings/
                                                        
        interest income and other3
                                                        
        income tax expense
                                                        
        loan receivable from affiliate
                      1,286,000,000 1,301,000,000 1,338,000,000 1,384,000,000 1,211,000,000                              
        keystone xl project-level credit facility retirement and issuance of class c interests
                                                        
        three months ended december 31, 2020
                                                        
        income /(loss) from equity investments
                                                        
        net income on sale of assets
                                                        
        segmented earnings /
                                                        
        other
                         856,000,000 718,000,000 1,102,000,000 636,000,000 816,000,000 746,000,000 793,000,000 772,000,000 701,000,000 701,000,000 505,000,000 858,000,000  523,000,000 523,000,000 307,000,000 401,000,000 268,000,000 188,000,000 238,000,000 187,000,000 116,000,000 297,000,000 297,000,000 265,000,000 205,000,000 281,000,000 277,000,000 277,000,000 302,000,000 153,000,000 
        intangible and other assets
                         2,087,000,000 1,725,000,000 2,357,000,000 1,518,000,000 1,433,000,000 1,386,000,000                          
        under at-the-market equity issuance program, net of issue costs
                                                        
        under dividend reinvestment and share purchase plan
                                                        
        on exercise of stock options
                                                        
        dilution from tc pipelines, lp units issued
                                                        
        adjustment related to income tax effects of asset drop-downs to tc pipelines, lp
                                                        
        issuance of tc pipelines, lp units
                                                        
        proceeds, net of issue costs
                             384,000,000  321,000,000                         
        decrease in tc energy's ownership of tc pipelines, lp
                                                        
        columbia pipeline partners lp acquisition
                                                        
        adjustment related to income tax effects of asset drop downs to tc pipelines, lp
                                                        
        adjustment related to employee share-based payments
                                                        
        other comprehensive income
                             88,000,000 64,000,000 61,000,000                         
        decrease in transcanada's ownership of tc pipelines, lp
                                                        
        reclassification from common units of tc pipelines, lp subject to rescission
                                                        
        impact of columbia pipeline partners lp acquisition
                                                        
        plant, property and equipment,
                           40,189,000,000                             
        contingencies and guarantees
                                                        
        subsequent event
                                                        
        shares issued on exercise of stock options
                             62,000,000 37,000,000 40,000,000                         
        shares issued under public offering, net of issue costs
                                                        
        dilution impact from tc pipelines, lp units issued
                             29,000,000                           
        redemption of subsidiary's preferred shares
                                                        
        tc pipelines, lp
                             36,000,000 19,000,000                          
        preferred share dividends of tcpl
                             11,000,000 6,000,000                          
        portland
                             7,000,000 6,000,000 3,000,000                         
        decrease in transcanada's ownership
                                                        
        distributions to non-controlling interests
                             -70,000,000  -95,000,000                         
        foreign exchange and other
                             9,000,000  59,000,000                         
        plant, property and equipment, net of accumulated depreciation of 17,598 and 16,540, respectively
                            35,985,000,000                            
        subsequent events
                                                        
        shares issued, net of issue costs
                             589,000,000                           
        exercise of stock options, net of issuances
                             -4,000,000                           
        sale of tc pipelines, lp units
                                                        
        decrease in transcanada’s ownership
                             -47,000,000  -50,000,000                         
        plant, property and equipment, net of accumulated depreciation of 17,327 and 16,540, respectively
                             35,699,000,000                           
        plant, property and equipment, net of accumulated depreciation of 16,908 and 16,540, respectively
                              34,356,000,000                          
        issued and outstanding: march 31, 2013 - 706 million shares
                                                        
        december 31, 2012 - 705 million shares
                                                        
        share issuance, net of issue costs
                              586,000,000                          
        intangibles and other assets
                               1,842,000,000 2,435,000,000 2,500,000,000 2,500,000,000                      
        accounts payable
                               2,231,000,000 2,162,000,000 2,195,000,000 2,195,000,000 2,350,000,000 2,298,000,000       1,767,000,000 1,708,000,000 1,616,000,000 1,570,000,000 1,500,000,000 1,500,000,000 1,274,000,000 1,244,000,000 1,340,000,000 1,494,000,000 1,494,000,000 1,168,000,000 885,000,000 
        current portion of long-term debt of joint ventures
                               106,000,000 28,000,000 212,000,000 212,000,000 235,000,000 303,000,000  207,000,000 207,000,000 80,000,000 30,000,000 28,000,000 30,000,000 27,000,000 32,000,000 137,000,000 142,000,000 142,000,000 124,000,000 136,000,000 37,000,000 41,000,000 41,000,000   
        deferred amounts
                               779,000,000 896,000,000 743,000,000 743,000,000 723,000,000 860,000,000 1,789,000,000 1,719,000,000 1,719,000,000 1,353,000,000 1,283,000,000 1,221,000,000 1,107,000,000 1,107,000,000 1,143,000,000 1,097,000,000 1,029,000,000 1,029,000,000 1,109,000,000 1,168,000,000 1,149,000,000 1,196,000,000 1,196,000,000 962,000,000 851,000,000 
        future income taxes
                               3,409,000,000 3,143,000,000 2,856,000,000 2,856,000,000 2,784,000,000 2,682,000,000  1,223,000,000 1,223,000,000 1,183,000,000 1,195,000,000 1,171,000,000 1,179,000,000 1,250,000,000 1,186,000,000 1,198,000,000 876,000,000 876,000,000 773,000,000 691,000,000 661,000,000 703,000,000 703,000,000 571,000,000 562,000,000 
        long-term debt of joint ventures
                               749,000,000 861,000,000 753,000,000 753,000,000 855,000,000 796,000,000  869,000,000 869,000,000 922,000,000 875,000,000 900,000,000 873,000,000 880,000,000 913,000,000 864,000,000 1,136,000,000 1,136,000,000 1,157,000,000 1,157,000,000 935,000,000 937,000,000 937,000,000   
        equity - sum
                               18,825,000,000                         
        balance at december 31, 2010
                               -683,000,000                         
        change in foreign currency translation gains and losses on investments in foreign operations
                               216,000,000                         
        v change in gains and losses on financial derivatives to hedge the net investments in foreign operations
                               -141,000,000                         
        change in gains and losses on derivative instruments designated as cash flow hedges
                                                        
        reclassification to net income of gains and losses on derivative instruments designated as cash flow hedges pertaining to prior periods
                                                        
        balance at september 30, 2011
                               -608,000,000                         
        balance at december 31, 2009
                               -592,000,000                         
        change in gains and losses on financial derivatives to hedge the net investments in foreign operations
                               27,000,000                         
        changes in gains and losses on derivative instruments designated as cash flow hedges
                                                        
        balance at september 30, 2010
                               -612,000,000                         
        shares issued under dividend reinvestment plan
                               202,000,000                         
        contributed surplus
                                     279,000,000      276,000,000 276,000,000 275,000,000 274,000,000 273,000,000 273,000,000 273,000,000 273,000,000 272,000,000 272,000,000 272,000,000 271,000,000 271,000,000 
        dilution gain from pipelines lp units issued
                               30,000,000                         
        pipelines lp
                               76,000,000                         
        preferred share dividends of subsidiary
                               17,000,000                         
        sale of pipelines lp units
                                                        
        liabilities and shareholders’ equity
                                                        
        non-controlling interest in pipelines lp
                                706,000,000 705,000,000 705,000,000 561,000,000 679,000,000  721,000,000 721,000,000 630,000,000 603,000,000 619,000,000  540,000,000 574,000,000 634,000,000 287,000,000 287,000,000 298,000,000 307,000,000 320,000,000     
        preferred shares of subsidiary
                                389,000,000 389,000,000 389,000,000 389,000,000 389,000,000  389,000,000 389,000,000 389,000,000 389,000,000 389,000,000 389,000,000 389,000,000 389,000,000 389,000,000 389,000,000 389,000,000 389,000,000 389,000,000 389,000,000 389,000,000 389,000,000 389,000,000 389,000,000 
        non-controlling interest in portland
                                81,000,000 80,000,000 80,000,000 77,000,000 85,000,000                    
        non-controlling interests - sum
                                1,176,000,000 1,174,000,000  1,027,000,000 1,153,000,000  1,194,000,000  1,095,000,000 1,065,000,000 1,127,000,000 999,000,000 997,000,000 1,035,000,000 1,106,000,000 755,000,000  769,000,000  791,000,000 783,000,000  463,000,000 466,000,000 
        other assets
                                   2,132,000,000 2,206,000,000 3,418,000,000 2,228,000,000 2,228,000,000 2,259,000,000 1,839,000,000 1,782,000,000 1,877,000,000 2,022,000,000 1,895,000,000 1,888,000,000 1,978,000,000 1,978,000,000 2,218,000,000 2,205,000,000 2,049,000,000 2,109,000,000 2,109,000,000 1,378,000,000 1,490,000,000 
        long-term investments
                                     5,221,000,000      63,000,000 68,000,000 69,000,000 76,000,000 71,000,000 71,000,000 77,000,000 74,000,000 419,000,000 400,000,000 400,000,000 850,000,000 830,000,000 
        deferred income taxes
                                     2,602,000,000                   
        long-term debt and junior subordinated notes
                                     16,664,000,000                   
        shareholders’ equity:
                                                        
        shareholders’ equity: - sum
                                     13,878,000,000                   
        liabilities and shareholders' equity
                                                        
        accounts payable and accrued liabilities
                                      1,876,000,000 1,876,000,000 1,740,000,000 1,989,000,000 1,702,000,000              
        shareholders' equity
                                      12,898,000,000 12,898,000,000 11,826,000,000 11,545,000,000 10,100,000,000              
        see accompanying notes to the consolidated financial statements.
                                                        
        cash and short-term investments
                                           504,000,000 255,000,000 340,000,000 350,000,000 399,000,000 399,000,000 342,000,000 314,000,000 361,000,000 212,000,000 212,000,000 241,000,000 210,000,000 
        preferred securities
                                             489,000,000 530,000,000 536,000,000 536,000,000 513,000,000 513,000,000 537,000,000 536,000,000 536,000,000 534,000,000 564,000,000 
        non-controlling interest in tc pipelines, lp
                                           539,000,000             
        foreign exchange adjustment
                                                        
        non-controlling interest
                                                        
        non-controlling interest - sum
                                                  773,000,000      
        current portion of non-recourse debt of joint ventures
                                                      71,000,000 73,000,000 
        non-recourse debt of joint ventures
                                                      626,000,000 798,000,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2014-12-31 2013-12-31 2013-09-30 2013-06-30 2013-04-26 2012-12-31 2012-04-27 
                                         
          cash generated from operations
                                         
          net income
        -209,000,000 -202,000,000 1,175,000,000  502,000,000 1,397,000,000 1,788,000,000 -452,000,000    -61,000,000 531,000,000 400,000,000  -202,000,000    868,000,000       20,000,000  126,000,000 -84,000,000 492,000,000  401,000,000 
          depreciation and amortization
        30,000,000 -7,000,000 678,000,000 -1,352,000,000 -4,000,000 719,000,000 27,000,000 -4,000,000   -1,323,000,000 18,000,000 9,000,000 626,000,000  -23,000,000    535,000,000       13,000,000  10,000,000 -11,000,000 367,000,000  344,000,000 
          goodwill and asset impairment charges and other
                     571,000,000                    
          deferred income taxes
        -179,000,000 104,000,000 210,000,000  76,000,000 143,000,000 -435,000,000 -106,000,000    -42,000,000 6,000,000 48,000,000  -106,000,000    71,000,000       -52,000,000  59,000,000 98,000,000 36,000,000  73,000,000 
          loss from equity investments
        -15,000,000 -25,000,000 -305,000,000  -120,000,000 -356,000,000 -216,000,000                           
          distributions received from operating activities of equity investments
        -77,000,000 80,000,000 336,000,000  -74,000,000 545,000,000 -2,000,000 36,000,000    59,000,000 -26,000,000 234,000,000  23,000,000    234,000,000              
          employee post-retirement benefits funding, net of expense
          2,000,000  -1,000,000 4,000,000 -1,000,000         7,000,000    3,000,000              
          net loss on sale of assets
            -524,000,000                             
          equity allowance for funds used during construction
        35,000,000 83,000,000 -164,000,000  -19,000,000 -100,000,000 19,000,000 -7,000,000    -33,000,000 8,000,000 -53,000,000  -14,000,000                  
          unrealized losses on financial instruments
        412,000,000 -298,000,000 17,000,000  -102,000,000 100,000,000 -144,000,000 237,000,000    161,000,000 64,000,000 16,000,000  90,000,000    188,000,000              
          expected credit loss provision
        -118,000,000     -20,000,000                            
          foreign exchange losses, net – intercompany loan
        -241,000,000 160,000,000 5,000,000                               
          other
        187,000,000    123,000,000 -46,000,000 92,000,000 -32,000,000    64,000,000 -70,000,000 8,000,000  -2,000,000              4,000,000 15,000,000  23,000,000 
          decrease in operating working capital
        -79,000,000 799,000,000 -590,000,000  375,000,000 -344,000,000 120,000,000 279,000,000      40,000,000  254,000,000           -159,000,000  186,000,000   207,000,000 -169,000,000 
          net cash from operations
        -253,000,000 814,000,000 1,359,000,000  260,000,000 2,042,000,000 36,000,000 314,000,000 -564,000,000 2,074,000,000 324,000,000 759,000,000 -765,000,000 1,707,000,000 89,000,000 1,000,000 740,000,000 -506,000,000 393,000,000 1,412,000,000 205,000,000 -168,000,000 51,000,000 1,302,000,000 352,000,000 174,000,000 -52,000,000 -109,000,000 277,000,000 135,000,000 706,000,000 1,025,000,000 672,000,000 
          investing activities
                                         
          capital expenditures
        -146,000,000 451,000,000 -1,560,000,000  -423,000,000 -1,579,000,000 -20,000,000 -24,000,000 -574,000,000 245,000,000 -1,508,000,000 -232,000,000 -180,000,000 -929,000,000 1,040,000,000 -464,000,000 
          free cash flows
        -399,000,000 1,265,000,000 -201,000,000  -163,000,000 463,000,000 16,000,000 290,000,000 -564,000,000 2,074,000,000 324,000,000 185,000,000 -520,000,000 199,000,000 89,000,000 -231,000,000 740,000,000 -506,000,000 393,000,000 1,412,000,000 205,000,000 -168,000,000 51,000,000 1,302,000,000 352,000,000 174,000,000 -52,000,000 -109,000,000 277,000,000 -45,000,000 -223,000,000 2,065,000,000 208,000,000 
          capital projects in development
             -20,000,000 -2,000,000 8,000,000                          
          contributions to equity investments
        15,000,000 -19,000,000 -245,000,000  -100,000,000 -298,000,000 326,000,000 -282,000,000    -527,000,000 1,196,000,000 -1,415,000,000  -16,000,000        192,000,000 -91,000,000 172,000,000        
          other distributions from equity investments
          5,000,000   30,000,000      1,173,000,000 -1,167,000,000 1,199,000,000      121,000,000              
          proceeds from sale of assets, net of transaction costs
            695,000,000                             
          deferred amounts and other
        20,000,000 -175,000,000 68,000,000   10,000,000 77,000,000 78,000,000    156,000,000 -161,000,000 54,000,000  32,000,000    110,000,000          -124,000,000 -20,000,000  -7,000,000 
          net cash from investing activities
        -107,000,000 250,000,000 -1,736,000,000  828,000,000 -1,855,000,000 417,000,000 -59,000,000    -100,000,000 800,000,000 -1,833,000,000  -616,000,000              -366,000,000 -981,000,000  -687,000,000 
          financing activities
                                         
          notes payable issued (repaid)
        -1,008,000,000 -198,000,000 1,147,000,000  -2,318,000,000 377,000,000 2,157,000,000 -972,000,000                          
          long-term debt issued, net of issue costs
          2,427,000,000   662,000,000  5,992,000,000        -1,775,000,000    93,000,000         2,163,000,000 -724,000,000 734,000,000  492,000,000 
          long-term debt repaid
        410,000,000 794,000,000 -2,009,000,000   -404,000,000 988,000,000 -1,800,000,000      -26,000,000                    
          junior subordinated notes issued, net of issue costs
          1,054,000,000           1,011,000,000                    
          dividends on common shares
        -2,000,000 -28,000,000 -855,000,000  -965,000,000 -382,000,000 5,000,000    -32,000,000 -853,000,000                   
          dividends on preferred shares
        -1,000,000 -28,000,000  -2,000,000 -23,000,000 -2,000,000 2,000,000    11,000,000 -1,000,000 -31,000,000  6,000,000                  
          common shares issued, net of issue costs
        17,000,000 -10,000,000 30,000,000         1,713,000,000 -100,000,000 129,000,000      340,000,000         -19,000,000 -9,000,000 32,000,000   
          disposition of equity interest, net of transaction costs
             -38,000,000                            
          contributions from non-controlling interests
            6,000,000                             
          distributions to non-controlling interests and other
        -28,000,000 137,000,000 -220,000,000                               
          cash received from factoring arrangement
                                         
          net cash from financing activities
        1,315,000,000 -2,792,000,000 1,546,000,000  7,168,000,000 -674,000,000 579,000,000 3,231,000,000     -34,000,000 534,000,000  -90,000,000    602,000,000       219,000,000  -634,000,000 564,000,000 159,000,000  -431,000,000 
          effect of foreign exchange rate changes on cash and cash equivalents
        -35,000,000     49,000,000 -203,000,000 153,000,000    72,000,000        29,000,000          6,000,000 8,000,000  -12,000,000 
          increase in cash and cash equivalents, including cash balances classified as assets held for sale
        920,000,000 -1,701,000,000 1,161,000,000                               
          cash balances classified as assets held for sale
            21,000,000 -47,000,000                            
          increase in cash and cash equivalents
        920,000,000 -1,701,000,000 1,161,000,000   -485,000,000 829,000,000 3,639,000,000    225,000,000 31,000,000 400,000,000  -662,000,000    178,000,000              
          cash and cash equivalents - beginning of period
        -540,000,000 1,161,000,000 801,000,000   3,678,000,000                            
          cash and cash equivalents - end of period
        380,000,000 -540,000,000 1,962,000,000   3,193,000,000                            
          impairment of equity investment
               401,000,000                          
          foreign exchange losses on loans receivable
                                         
          acquisitions, net of cash acquired
                                 12,605,000,000        
          loans to affiliate (issued) repaid
                                         
          keystone xl contractual recoveries
            -1,000,000 2,000,000 1,000,000 -3,000,000    -378,000,000                      
          disposition of equity interests, net of transaction costs
                                         
          cash transferred to south bow, net of debt settlements
                                         
          gains on settlement of financial instruments
                                         
          cash flows1
                                         
          net cash from operations2
                                         
          comparable funds generated from operations2,3
                                         
          capital spending4
                                         
          proceeds from sales of assets, net of transaction costs
                                         
          disposition of equity interest, net of transaction costs5
                                         
          dividends declared
                                         
          per common share6
                                         
          basic common shares outstanding
                                         
          – weighted-average for the period
                 1,021,000,000        10,000,000                
          – issued and outstanding at end of period
                 1,023,000,000        10,000,000                
          segmented earnings (losses) from continuing operations
                                         
          canadian natural gas pipelines
                                         
          u.s. natural gas pipelines
                                         
          mexico natural gas pipelines
                                         
          power and energy solutions
                                         
          corporate
                                         
          comparable ebitda from continuing operations
                                         
          interest expense included in comparable earnings
                                         
          allowance for funds used during construction
                                         
          foreign exchange gains, net included in comparable earnings
                                         
          interest income and other
                                         
          income tax (expense) recovery included in comparable earnings
                                         
          net (income) loss attributable to non-controlling interests included in comparable earnings
                                         
          preferred share dividends
                                         
          comparable earnings from continuing operations
                                         
          comparable earnings per common share from continuing operations
                                         
          distributions to non-controlling interests
            -221,000,000 -282,000,000 -66,000,000 4,000,000    3,000,000 -3,000,000 -10,000,000                    
          distributions on class c interests
                     -21,000,000                    
          effect of foreign exchange rate changes on cash and cash equivalents and restricted cash
                                         
          increase in cash and cash equivalents and restricted cash, including cash balances classified as assets held for sale
                                         
          increase in cash and cash equivalents and restricted cash
                                         
          cash and cash equivalents and restricted cash - beginning of period
                                         
          cash and cash equivalents and restricted cash - end of period
                                         
          asset impairment charges and other
                                         
          income from equity investments
                   -86,000,000 -31,000,000 -205,000,000  -108,000,000              -60,000,000 -93,000,000  -60,000,000 
          gain on sale of asset
                                         
          long-term debt issued to affiliates, net of issue costs
                                         
          long-term debt repaid to affiliates
                                         
          redeemable non-controlling interest repurchased
                                         
          parent’s net investment contributions (distributions)
                                         
          cash and cash equivalents
                                         
          beginning of year
                                         
          end of year
                                         
          increase in cash and cash equivalents, including cash balances classified as assetsheld for sale
             -438,000,000                            
          foreign exchange losses on loan receivable from affiliate
                     28,000,000  74,000,000                  
          preferred shares redeemed
                                         
          beginning of period
              879,000,000 -2,760,000,000    431,000,000 400,000,000 673,000,000  631,000,000    1,089,000,000       131,000,000  231,000,000 -108,000,000 551,000,000  654,000,000 
          end of period
              1,708,000,000 879,000,000    656,000,000 431,000,000 1,073,000,000  -31,000,000    1,267,000,000  3,000,000 4,000,000 867,000,000 41,000,000 120,000,000 -209,000,000 62,000,000 -29,000,000 231,000,000 443,000,000 705,000,000 196,000,000 
          goodwill impairment charge
                                         
          income
                                         
          revenues
                 3,928,000,000        -39,000,000   375,000,000 25,000,000 -174,000,000 3,391,000,000 -13,000,000 881,000,000      2,089,000,000  
          net income attributable to common shares
                 1,313,000,000        143,000,000     238,000,000 643,000,000        306,000,000  
          per common share – basic
                 1,290,000        140,000                
          comparable ebitda1
                 2,775,000,000        65,000,000   236,000,000 -163,000,000 -147,000,000 1,977,000,000 4,000,000 517,000,000        
          comparable earnings
                 1,233,000,000                      318,000,000  
          per common share
                 1,210,000          625,000          
          cash flows
                                         
          comparable funds generated from operations
                 2,066,000,000                        
          capital spending2
                 3,033,000,000        201,000,000                
          comparable measure
                                         
          comparable ebitda
                                       1,052,000,000  
          comparable ebit
                                         
          comparable earnings per common share
                                         
          funds generated from operations
                                       818,000,000  
          net (loss)/income attributable to common shares
                                         
          segmented (losses)/earnings
                                         
          liquids pipelines
                                         
          total segmented (losses)/earnings
                                         
          foreign exchange (loss)/gain, net included in comparable earnings
                                         
          income tax expense included in comparable earnings
                                         
          net income attributable to non-controlling interests
                                         
          capital spending1
                                         
          gain on sale of assets
                                         
          loans to affiliate repaid/(issued)
                   50,000,000                      
          notes payable issued/(repaid)
                     330,000,000  1,201,000,000           312,000,000       
          increase in operating working capital
                                         
          notes payable (repaid)/issued
                                        -46,000,000 
          loans to affiliate
                     -163,000,000                    
          asset impairment charge and other
                                         
          loan to affiliate
                       -400,000,000                  
          loss on settlement of financial instruments
                                         
          contributions from redeemable non-controlling interest
                                         
          common shares issued
                       -22,000,000                 14,000,000 
          acquisition of tc pipelines, lp transaction costs
                                         
          net gain on sale of assets
                                         
          comparable earnings1
                         134,000,000   105,000,000 -45,000,000 -39,000,000 698,000,000 -13,000,000 273,000,000        
          per common share1
                         140,000   120,000 -60,000 -50,000 810,000          
          comparable funds generated from operations1
                         112,000,000   134,000,000 -92,000,000 -100,000,000 1,508,000,000 25,000,000         
          partnership units of tc pipelines, lp issued, net of issue costs
                           49,000,000              
          goodwill and other asset impairment charges
                                         
          deferred income taxes – u.s. tax reform and 2018 ferc actions
                                         
          reimbursement of costs related to capital projects in development
                                         
          common units of columbia pipeline partners lp acquired
                                         
          – diluted
                         140,000                
          comparable distributable cash flow1
                         107,000,000    -167,000,000 -286,000,000 1,222,000,000 -78,000,000 344,000,000        
          1
                                         
          notes payable issued
                           1,812,000,000              
          distributions paid to non-controlling interests
                                     -35,000,000  -33,000,000 
          net income/(loss) attributable to common shares
                            249,000,000             
          per common share - basic
                            280,000 -310,000            
          - diluted
                            280,000 -310,000            
          operating cash flow
                                         
          - reflecting all maintenance capital expenditures
                                         
          - reflecting only non-recoverable maintenance capital expenditures
                                         
          comparable distributable cash flow per common share1
                                         
          - weighted-average
                                         
          - issued and outstanding
                                         
          capital spending - capital expenditures
                             239,000,000 232,000,000 1,560,000,000 301,000,000 462,000,000        
          - projects in development
                             -19,000,000 14,000,000 42,000,000 14,000,000 -28,000,000        
          - contributions to equity investments
                             2,000,000            
          average for the period
                             3,000,000 4,000,000 866,000,000 9,000,000 120,000,000      705,000,000  
          per common share - basic and diluted
                               740,000          
          net (loss)/income attributable to controlling interests and to common shares
                                         
          funds generated from operations1
                                         
          decrease/(increase) in operating working capital
                                         
          asset impairment charges
                                         
          distributed earnings received from equity investments
                                  3,000,000  -17,000,000 96,000,000 84,000,000   
          employee post-retirement benefits expense, net of funding
                                         
          loss on assets held for sale/sold
                                         
          distributions in excess of equity earnings
                                         
          common shares repurchased
                                         
          preferred shares issued, net of issue costs
                                     -587,000,000 586,000,000   
          partnership units of subsidiary issued, net of issue costs
                                         
          preferred shares of subsidiary redeemed
                                         
          equity afudc
                                         
          capital projects under development
                                         
          equity investments
                                     -7,000,000 -32,000,000  -216,000,000 
          repayment of long-term debt
                                     -681,000,000 -14,000,000   
          employee post-retirement benefits funding lower than expense
                                     -4,000,000 15,000,000   
          acquisitions
                                         
          dividends on common and preferred shares
                                     -36,000,000 -315,000,000  -310,000,000 
          revenue
                                         
          (increase)/decrease in operating working capital
                                         
          per series 1 preferred share
                                         
          per series 3 preferred share
                                         
          per series 5 preferred share
                                         
          per series 7 preferred share1
                                         
          employee post-retirement benefits funding lower/(higher) than expense
                                         
          notes payable repaid
                                      -829,000,000   
          acquisition
                                         
          increase of operating working capital
                                      -210,000,000   
          decrease in cash and cash equivalents
                                      -108,000,000  -458,000,000 
          net income per share
                                       430,000  
          comparable earnings per share
                                       450,000  
          dividends declared per common share
                                       440,000  
          distributions received from equity investments
                                        53,000,000 
          employee future benefits expense (less than)/in excess of funding
                                         
          reduction of long-term debt
                                        -548,000,000 
          partnership units of subsidiary issued, net of costs
                                         
          employee future benefits expense in excess of/(less than) funding
                                        7,000,000 
          depreciation
                                         
          future income taxes
                                         
          non-controlling interests
                                         
          employee future benefits funding (in excess of)/lower than expense
                                         
          writedown of broadwater lng project costs
                                         
          gain on sale of assets, net of current income taxes
                                         
          disposition of assets, net of current income taxes
                                         
          long-term debt of joint ventures issued
                                         
          reduction of long-term debt of joint ventures
                                         
          preferred securities redeemed
                                         
          partnership units of subsidiary issued
                                         
          effect of foreign exchange rate changes on cash
                                         
          and cash equivalents