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Equity - Common Stock Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Class of Stock [Line Items] |  |  |
Cost of shares issued | $ 74 | $ 105 | $ 193
Repurchase Shares | 50,269,483 | 49,732,851 | 72,296,518
Treasury Stock, Value, Acquired, Cost Method | $ 3,133 | $ 3,301 | $ 4,328
Dividends, Common Stock, Cash | (1,566) | (1,598) | (1,647)
Treasury Stock, Value, Acquired, Cost Method, Excise Tax | 30 |  |
Retained Earnings |  |  |
Class of Stock [Line Items] |  |  |
Dividends, Common Stock, Cash | (1,566) | $ (1,598) | (1,647)
August2021Authorization |  |  |
Class of Stock [Line Items] |  |  |
Treasury Stock, Value, Acquired, Cost Method |  |  | $ 25
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ 0 |  |
Common Shares Issued For Stock Options [Member] |  |  |
Class of Stock [Line Items] |  |  |
Stock Issued During Period, Shares, New Issues | 1,992,180 | 3,290,998 | 4,926,185
Cost of shares issued | $ 110 | $ 156 | $ 195
Treasury Shares Issued For Stock Options [Member] |  |  |
Class of Stock [Line Items] |  |  |
Issued Treasury Stock | 0 | 0 | 0
Common Stock [Member] |  |  |
Class of Stock [Line Items] |  |  |
Dividends, Common Stock, Cash | $ (1,600) | $ (1,600) | $ (1,600)

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