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Stockholders' Equity - Common Stock Dividends and Reconciliation of Outstanding Common Shares (Details) - USD ($) $ / shares in Units, $ in Billions | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Feb. 29, 2024 | Jan. 31, 2022 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Common Stock Dividends |  |  |  |  |  |
Dividends declared per common share (in dollars per share) |  |  | $ 0.71 | $ 0.64 | $ 1.40 | $ 1.28
Common stock |  |  |  |  |  |
Reconciliation of Outstanding Common Shares |  |  |  |  |  |
Outstanding shares at beginning of period |  |  | 235,032,781 | 243,119,187 | 236,438,294 | 243,549,782
Shares issued |  |  | 319,208 | 301,522 | 1,834,936 | 1,998,654
Treasury stock acquired |  |  | (3,058,602) | (1,382,876) | (5,979,843) | (3,510,603)
Outstanding shares at end of period |  |  | 232,293,387 | 242,037,833 | 232,293,387 | 242,037,833
Common stock share repurchase disclosures |  |  |  |  |  |
Share repurchase program, maximum authorized amount (in dollars) | $ 1.5 | $ 1.6 |  |  |  |

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