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Revenue Recognition - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | $ 10,097 | $ 12,080 | $ 13,318
Leasing services | 1,236 | 951 | 868
Other | 146 | 129 | 91
Total other revenues | 1,603 | 1,129 | 826
Total revenues | 11,700 | 13,209 | 14,144
Firm services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 4,370 | 4,877 | 4,746
Fee-based services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 2,056 | 2,416 | 2,466
Total services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 6,426 | 7,293 | 7,212
Natural gas sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 2,032 | 2,595 | 3,318
Product sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 1,639 | 2,192 | 2,788
Total commodity sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 3,671 | 4,787 | 6,106
Total revenues | 3,891 | 4,811 | 5,987
Natural Gas Pipelines |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenues | 7,222 | 8,128 | 8,807
Products Pipelines |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenues | 1,721 | 1,831 | 1,887
Terminals |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenues | 1,719 | 2,031 | 2,025
CO2 |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenues | 1,038 | 1,219 | 1,255
Kinder Morgan Canada |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenues | 0 | 0 | 170
Operating Segments | Natural Gas Pipelines |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 6,659 | 7,737 | 8,596
Leasing services | 466 | 273 | 220
Other | 116 | 90 | 64
Total other revenues | 600 | 433 | 259
Total revenues | 7,259 | 8,170 | 8,855
Operating Segments | Natural Gas Pipelines | Firm services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 3,345 | 3,549 | 3,387
Operating Segments | Natural Gas Pipelines | Fee-based services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 714 | 780 | 692
Operating Segments | Natural Gas Pipelines | Total services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 4,059 | 4,329 | 4,079
Operating Segments | Natural Gas Pipelines | Natural gas sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 2,038 | 2,603 | 3,327
Operating Segments | Natural Gas Pipelines | Product sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 562 | 805 | 1,190
Operating Segments | Natural Gas Pipelines | Total commodity sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 2,600 | 3,408 | 4,517
Operating Segments | Products Pipelines |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 1,534 | 1,624 | 1,725
Leasing services | 166 | 182 | 158
Other | 21 | 25 | 4
Total other revenues | 187 | 207 | 162
Total revenues | 1,721 | 1,831 | 1,887
Operating Segments | Products Pipelines | Firm services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 271 | 319 | 376
Operating Segments | Products Pipelines | Fee-based services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 905 | 1,016 | 956
Operating Segments | Products Pipelines | Total services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 1,176 | 1,335 | 1,332
Operating Segments | Products Pipelines | Natural gas sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 0 | 0 | 0
Operating Segments | Products Pipelines | Product sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 358 | 289 | 393
Operating Segments | Products Pipelines | Total commodity sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 358 | 289 | 393
Operating Segments | Terminals |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 1,165 | 1,592 | 1,587
Leasing services | 557 | 442 | 440
Other | 0 | 0 | 0
Total other revenues | 557 | 442 | 440
Total revenues | 1,722 | 2,034 | 2,027
Operating Segments | Terminals | Firm services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 756 | 1,012 | 983
Operating Segments | Terminals | Fee-based services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 395 | 560 | 584
Operating Segments | Terminals | Total services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 1,151 | 1,572 | 1,567
Operating Segments | Terminals | Natural gas sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 0 | 0 | 0
Operating Segments | Terminals | Product sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 14 | 20 | 20
Operating Segments | Terminals | Total commodity sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 14 | 20 | 20
Operating Segments | CO2 |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 779 | 1,173 | 1,293
Leasing services | 47 | 54 | 48
Other | 9 | 13 | 22
Total other revenues | 259 | 46 | (38)
Total revenues | 1,038 | 1,219 | 1,255
Operating Segments | CO2 | Firm services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 1 | 1 | 2
Operating Segments | CO2 | Fee-based services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 42 | 60 | 67
Operating Segments | CO2 | Total services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 43 | 61 | 69
Operating Segments | CO2 | Natural gas sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 1 | 1 | 2
Operating Segments | CO2 | Product sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 735 | 1,111 | 1,222
Operating Segments | CO2 | Total commodity sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 736 | 1,112 | 1,224
Operating Segments | Kinder Morgan Canada |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers |  |  | 167
Leasing services |  |  | 2
Other |  |  | 1
Total other revenues |  |  | 3
Total revenues |  |  | 170
Operating Segments | Kinder Morgan Canada | Firm services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers |  |  | 0
Operating Segments | Kinder Morgan Canada | Fee-based services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers |  |  | 167
Operating Segments | Kinder Morgan Canada | Total services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers |  |  | 167
Operating Segments | Kinder Morgan Canada | Natural gas sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers |  |  | 0
Operating Segments | Kinder Morgan Canada | Product sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers |  |  | 0
Operating Segments | Kinder Morgan Canada | Total commodity sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers |  |  | 0
Corporate and Eliminations |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | (40) | (46) | (50)
Leasing services | 0 | 0 | 0
Other | 0 | 1 | 0
Total other revenues | 0 | 1 | 0
Total revenues | (40) | (45) | (50)
Corporate and Eliminations | Firm services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | (3) | (4) | (2)
Corporate and Eliminations | Fee-based services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | 0 | 0 | 0
Corporate and Eliminations | Total services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | (3) | (4) | (2)
Corporate and Eliminations | Natural gas sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | (7) | (9) | (11)
Corporate and Eliminations | Product sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | (30) | (33) | (37)
Corporate and Eliminations | Total commodity sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues from contracts with customers | (37) | (42) | (48)
Sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Derivatives adjustments on commodity sales | 221 | 49 | (133)
Sales | Operating Segments | Natural Gas Pipelines |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Derivatives adjustments on commodity sales | 18 | 70 | (25)
Sales | Operating Segments | Products Pipelines |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Derivatives adjustments on commodity sales | 0 | 0 | 0
Sales | Operating Segments | Terminals |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Derivatives adjustments on commodity sales | 0 | 0 | 0
Sales | Operating Segments | CO2 |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Derivatives adjustments on commodity sales | 203 | (21) | (108)
Sales | Operating Segments | Kinder Morgan Canada |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Derivatives adjustments on commodity sales |  |  | 0
Sales | Corporate and Eliminations |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Derivatives adjustments on commodity sales | $ 0 | $ 0 | $ 0

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