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Capital Structure - Summary of Changes in Shares Repurchased (Details) - USD ($) | 2 Months Ended | 12 Months Ended | 14 Months Ended
--- | --- | --- | ---
Feb. 24, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Feb. 24, 2022
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |
Total number of shares purchased (in shares) |  | 1,084,752 | 6,062,783 | 36,301,882 |
Subsequent Event |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |
Total number of shares purchased (in shares) | 1,889,151 |  |  |  |
Repurchases under February 28, 2019 Accelerated Share Repurchase Agreement |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |
Total number of shares purchased (in shares) |  |  |  | 9,438,671 |
Amounts paid for shares and share equivalents purchased (in millions) |  |  |  | $ 400,000,000 |
Other repurchases |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |
Total number of shares purchased (in shares) |  | 1,084,752 | 6,062,783 | 26,863,211 |
Accrued stock repurchases |  | $ 5,000,000 |  | $ 4,000,000 |
Amounts paid for shares and share equivalents purchased (in millions) |  | $ 44,000,000 | $ 197,000,000 | $ 1,008,000,000 |
Other repurchases | Subsequent Event |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |
Total number of shares purchased (in shares) | 1,889,151 |  |  |  |
Amounts paid for shares and share equivalents purchased (in millions) | $ 76,000,000 |  |  |  |
Equivalent shares purchased in lieu of tax withholding on equity compensation issuances |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |
Total number of shares purchased (in shares) |  | 249,013 | 711,248 | 936,928 |
Average price paid per share (in shares) |  | $ 37.50 | $ 38.23 | $ 38.78 |
Amounts paid for shares and share equivalents purchased (in millions) |  | $ 9,000,000 | $ 27,000,000 | $ 36,000,000 |
Equivalent shares purchased in lieu of tax withholding on equity compensation issuances | Subsequent Event |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |
Total number of shares purchased (in shares) | 130,674 |  |  |  |
Average price paid per share (in shares) | $ 43.08 |  |  |  |
Amounts paid for shares and share equivalents purchased (in millions) | $ 6,000,000 |  |  |  |
Capital Allocation Plan |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |
Total number of shares purchased (in shares) |  | 1,333,765 | 6,774,031 | 37,238,810 |
Average price paid per share (in shares) |  | $ 40.22 | $ 33.05 | $ 38.79 |
Amounts paid for shares and share equivalents purchased (in millions) |  | $ 53,000,000 | $ 224,000,000 | $ 1,444,000,000 |
Capital Allocation Plan | Subsequent Event |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |
Total number of shares purchased (in shares) |  |  |  |  | 2,019,825
Average price paid per share (in shares) |  |  |  |  | $ 40.26
Amounts paid for shares and share equivalents purchased (in millions) |  |  |  |  | $ 82,000,000

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