v3.26.1
Reportable Segments (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Segment Reporting [Line Items]          
Revenues $ 4,477 $ 4,042 $ 9,305 $ 8,283  
Costs of Sales (1,405) (1,211) (3,154) (2,687)  
Taxes, other than income taxes (120) (111) (234) (223)  
Earnings (loss) from equity investments 225 206 479 426  
Net income 894 742 1,895 1,485  
Depreciation, depletion, and amortization 620 616 1,253 1,226  
General and administrative and corporate charges (188) (188) (365) (380)  
Interest, net (425) (452) (855) (903)  
Income Tax Expense (272) (177) (559) (363)  
Capital Expenditures 982 647 1,786 1,413  
Investments 7,705   7,705   $ 7,532
Other intangibles, net 1,872   1,872   1,730
Assets 74,062   74,062   72,748
Non-cash mark-to-market derivative hedge contract gain (loss)     (13) 11  
Operating Segments          
Segment Reporting [Line Items]          
Net income 2,399 2,175 4,927 4,357  
Corporate          
Segment Reporting [Line Items]          
Depreciation, depletion, and amortization 6 8 13 13  
Capital Expenditures 10 15 33 34  
Investments 0   0   0
Other intangibles, net 0   0   0
Assets 639   639   633
Intersegment Eliminations          
Segment Reporting [Line Items]          
Revenues (9) (8) (17) (14)  
Natural Gas Pipelines          
Segment Reporting [Line Items]          
Revenues 2,664 2,531 5,955 5,281  
Natural Gas Pipelines | Operating Segments          
Segment Reporting [Line Items]          
Revenues 2,671 2,536 5,967 5,290  
Costs of Sales (906) (890) (2,337) (2,035)  
Labor (88) (84) (174) (164)  
Fuel and power (25) (20) (51) (39)  
Field - non-labor(a) (258) (231) (457) (422)  
Taxes, other than income taxes (78) (73) (157) (145)  
Earnings (loss) from equity investments 193 185 418 381  
Other segment items(b) 11 13 22 23  
Net income 1,520 1,436 3,231 2,889  
Depreciation, depletion, and amortization 305 294 602 581  
Capital Expenditures 797 409 1,407 902  
Investments 7,122   7,122   6,962
Other intangibles, net 1,098   1,098   900
Assets 54,029   54,029   52,546
Non-cash mark-to-market derivative hedge contract gain (loss) 60 89 (15) 9  
Natural Gas Pipelines | Intersegment Eliminations          
Segment Reporting [Line Items]          
Revenues (7) (5) (12) (9)  
Products Pipelines          
Segment Reporting [Line Items]          
Revenues 902 691 1,589 1,354  
Products Pipelines | Operating Segments          
Segment Reporting [Line Items]          
Revenues 902 691 1,589 1,354  
Costs of Sales (464) (292) (745) (585)  
Labor (34) (33) (68) (65)  
Fuel and power (21) (22) (41) (43)  
Field - non-labor(a) (49) (60) (89) (108)  
Taxes, other than income taxes (10) (11) (20) (23)  
Earnings (loss) from equity investments 18 15 36 31  
Other segment items(b) 1 1 1 1  
Net income 343 289 663 562  
Depreciation, depletion, and amortization 85 97 169 193  
Capital Expenditures 38 58 76 139  
Investments 388   388   381
Other intangibles, net 371   371   403
Assets 8,043   8,043   8,044
Non-cash mark-to-market derivative hedge contract gain (loss) 4 0 (1) (1)  
Products Pipelines | Intersegment Eliminations          
Segment Reporting [Line Items]          
Revenues 0 0 0 0  
Terminals          
Segment Reporting [Line Items]          
Revenues 556 531 1,118 1,047  
Terminals | Operating Segments          
Segment Reporting [Line Items]          
Revenues 558 533 1,123 1,051  
Costs of Sales (20) (14) (36) (29)  
Labor (71) (69) (140) (139)  
Fuel and power (5) (5) (10) (11)  
Field - non-labor(a) (141) (136) (278) (276)  
Taxes, other than income taxes (15) (14) (27) (27)  
Earnings (loss) from equity investments 4 2 7 4  
Other segment items(b) 0 3 0 2  
Net income 310 300 639 575  
Depreciation, depletion, and amortization 130 129 261 258  
Capital Expenditures 69 77 139 153  
Investments 124   124   122
Other intangibles, net 12   12   13
Assets 7,840   7,840   7,917
Non-cash mark-to-market derivative hedge contract gain (loss) 1   0    
Terminals | Intersegment Eliminations          
Segment Reporting [Line Items]          
Revenues (2) (2) (5) (4)  
CO2          
Segment Reporting [Line Items]          
Revenues 355 289 643 601  
CO2 | Operating Segments          
Segment Reporting [Line Items]          
Revenues 355 290 643 602  
Costs of Sales (24) (21) (52) (48)  
Labor (14) (14) (27) (26)  
Fuel and power (33) (34) (58) (66)  
Field - non-labor(a) (64) (64) (121) (117)  
Taxes, other than income taxes (15) (12) (26) (25)  
Earnings (loss) from equity investments 10 4 18 10  
Other segment items(b) 11 1 17 1  
Net income 226 150 394 331  
Depreciation, depletion, and amortization 94 88 208 181  
Capital Expenditures 68 88 131 185  
Investments 71   71   67
Other intangibles, net 391   391   414
Assets 3,511   3,511   $ 3,608
Non-cash mark-to-market derivative hedge contract gain (loss) 19 5 (2) 4  
CO2 | Intersegment Eliminations          
Segment Reporting [Line Items]          
Revenues $ 0 $ (1) $ 0 $ (1)