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Equity and Share-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 1 Months Ended | 3 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2024 | Mar. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Recognized share-based compensation expense |  | $ 303 | $ 295
Unrecognized pretax compensation expense on nonvested awards | $ 2,800 | $ 2,800 |
Management Grant |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of stock options granted (in shares) | 3 |  |
Weighted-average fair value of stock options granted (in dollars per share) | $ 9.49 |  |
Restricted Stock Units (RSUs) | Management Grant |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of restricted share units granted (in shares) | 31 |  |
Weighted-average fair value of restricted share units granted (in dollars per share) | $ 42.62 |  |

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