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Earnings Per Share - Share Repurchases (Details) - USD ($) shares in Millions, $ in Millions | 3 Months Ended | 9 Months Ended
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Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Earnings Per Share [Abstract] |  |  |  |
Shares Repurchased (in shares) | 40 | 34 | 116 | 74
Cost of Shares | $ 1,195 | $ 1,064 | $ 3,710 | $ 2,316

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