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Equity - Capital Stock (Details) - USD ($) $ / shares in Units, $ in Millions |  | 12 Months Ended
--- | --- | ---
Jan. 29, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Class of Stock [Line Items] |  |  |  |
Preferred stock authorized (shares) |  | 2,000,000,000,000 |  |
Par value of preferred stock (USD per share) |  | $ 1 |  |
Preferred stock issued (shares) |  | 0 |  |
Dividend history |  |  |  |
Quarterly dividend rate (USD per share) |  | $ 0.57 | $ 0.50 | $ 0.41
Annualized dividend rate (USD per share) |  | $ 2.28 | $ 2.00 | $ 1.64
Dividends paid |  | $ 560 | $ 503 | $ 421
Subsequent Event |  |  |  |
Dividend history |  |  |  |
Quarterly dividend rate (USD per share) | $ 0.67 |  |  |

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