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Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | $ 3,213 | $ 3,100 | $ 6,623 | $ 6,545
Leasing services | 348 | 346 | 690 | 676
Derivatives adjustments on commodity sales | (25) | 28 | (16) | 114
Other | 36 | 27 | 117 | 54
Total other revenues | 359 | 401 | 791 | 844
Total revenues | 3,572 | 3,501 | 7,414 | 7,389
Natural Gas Pipelines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 1,990 | 1,987 | 4,323 | 4,450
Products Pipelines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 776 | 735 | 1,504 | 1,403
Terminals |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 508 | 477 | 1,002 | 937
CO2 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 298 | 302 | 585 | 599
Operating Segments | Natural Gas Pipelines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 1,849 | 1,814 | 3,959 | 4,040
Leasing services | 114 | 120 | 229 | 237
Derivatives adjustments on commodity sales | 5 | 40 | 47 | 147
Other | 25 | 17 | 94 | 33
Total other revenues | 144 | 177 | 370 | 417
Total revenues | 1,993 | 1,991 | 4,329 | 4,457
Operating Segments | Products Pipelines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 717 | 675 | 1,387 | 1,291
Leasing services | 53 | 52 | 106 | 99
Derivatives adjustments on commodity sales | 0 | 2 | (1) | 1
Other | 6 | 6 | 12 | 12
Total other revenues | 59 | 60 | 117 | 112
Total revenues | 776 | 735 | 1,504 | 1,403
Operating Segments | Terminals |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 345 | 315 | 679 | 624
Leasing services | 164 | 163 | 326 | 315
Derivatives adjustments on commodity sales | 0 | 0 | 0 | 0
Other | 0 | 0 | 0 | 0
Total other revenues | 164 | 163 | 326 | 315
Total revenues | 509 | 478 | 1,005 | 939
Operating Segments | CO2 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 306 | 301 | 608 | 599
Leasing services | 17 | 11 | 29 | 25
Derivatives adjustments on commodity sales | (30) | (14) | (62) | (34)
Other | 5 | 4 | 11 | 9
Total other revenues | (8) | 1 | (22) | 0
Total revenues | 298 | 302 | 586 | 599
Corporate and Eliminations |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | (4) | (5) | (10) | (9)
Leasing services | 0 | 0 | 0 | 0
Derivatives adjustments on commodity sales | 0 | 0 | 0 | 0
Other | 0 | 0 | 0 | 0
Total other revenues | 0 | 0 | 0 | 0
Total revenues | (4) | (5) | (10) | (9)
Corporate and Eliminations | Natural Gas Pipelines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | (3) | (4) | (6) | (7)
Corporate and Eliminations | Terminals |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | (1) | (1) | (3) | (2)
Corporate and Eliminations | CO2 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | (1) | 0
Firm services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 1,183 | 1,107 | 2,444 | 2,270
Firm services | Operating Segments | Natural Gas Pipelines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 920 | 849 | 1,912 | 1,766
Firm services | Operating Segments | Products Pipelines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 49 | 49 | 107 | 89
Firm services | Operating Segments | Terminals |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 215 | 208 | 427 | 415
Firm services | Operating Segments | CO2 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 0 | 1 | 0 | 1
Firm services | Corporate and Eliminations |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | (1) | 0 | (2) | (1)
Fee-based services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 657 | 602 | 1,296 | 1,186
Fee-based services | Operating Segments | Natural Gas Pipelines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 257 | 248 | 528 | 484
Fee-based services | Operating Segments | Products Pipelines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 276 | 246 | 524 | 486
Fee-based services | Operating Segments | Terminals |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 115 | 98 | 224 | 196
Fee-based services | Operating Segments | CO2 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 10 | 10 | 22 | 20
Fee-based services | Corporate and Eliminations |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | (1) | 0 | (2) | 0
Total services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 1,840 | 1,709 | 3,740 | 3,456
Total services | Operating Segments | Natural Gas Pipelines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 1,177 | 1,097 | 2,440 | 2,250
Total services | Operating Segments | Products Pipelines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 325 | 295 | 631 | 575
Total services | Operating Segments | Terminals |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 330 | 306 | 651 | 611
Total services | Operating Segments | CO2 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 10 | 11 | 22 | 21
Total services | Corporate and Eliminations |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | (2) | 0 | (4) | (1)
Natural gas sales |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 490 | 495 | 1,134 | 1,312
Natural gas sales | Operating Segments | Natural Gas Pipelines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 461 | 484 | 1,085 | 1,283
Natural gas sales | Operating Segments | Products Pipelines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 0 | 0 | 0 | 0
Natural gas sales | Operating Segments | Terminals |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 0 | 0 | 0 | 0
Natural gas sales | Operating Segments | CO2 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 30 | 13 | 53 | 33
Natural gas sales | Corporate and Eliminations |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | (1) | (2) | (4) | (4)
Product sales |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 883 | 896 | 1,749 | 1,777
Product sales | Operating Segments | Natural Gas Pipelines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 211 | 233 | 434 | 507
Product sales | Operating Segments | Products Pipelines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 392 | 380 | 756 | 716
Product sales | Operating Segments | Terminals |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 15 | 9 | 28 | 13
Product sales | Operating Segments | CO2 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 266 | 277 | 533 | 545
Product sales | Corporate and Eliminations |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | (1) | (3) | (2) | (4)
Total commodity sales |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 1,373 | 1,391 | 2,883 | 3,089
Total revenues | 1,346 | 1,421 | 2,866 | 3,206
Total commodity sales | Operating Segments | Natural Gas Pipelines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 672 | 717 | 1,519 | 1,790
Total commodity sales | Operating Segments | Products Pipelines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 392 | 380 | 756 | 716
Total commodity sales | Operating Segments | Terminals |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 15 | 9 | 28 | 13
Total commodity sales | Operating Segments | CO2 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | 296 | 290 | 586 | 578
Total commodity sales | Corporate and Eliminations |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from customers | $ (2) | $ (5) | $ (6) | $ (8)

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