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Stockholders' Equity - Noncontrolling Interests (Details) $ in Millions, $ in Billions |  | 12 Months Ended
--- | --- | ---
Jan. 03, 2019 USD ($) | Jan. 03, 2019 CAD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) shares
Cash distributions paid in the period to the public |  |  | $ 2,362 | $ 2,163 | $ 1,618
Dividends, Preferred Stock, Cash |  |  |  |  | 128
Payments to noncontrolling interests | $ 900 | $ 1.2 | $ 0 | 879 | 0
Kinder Morgan Canada Limited |  |  |  |  |
Cash distributions paid in the period to the public |  |  |  | 17 | 38
Value of Restricted Shares Issued in Lieu of Cash Dividends |  |  |  |  | $ 14
Common Stock Dividends, Shares | shares |  |  |  |  | 1,092,791
Dividends, Preferred Stock, Cash |  |  |  | 22 | $ 21
Restricted Voting Shares | Kinder Morgan Canada Limited |  |  |  |  |
Total value of distributions paid in the period |  |  |  | $ 17 | $ 52

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