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Income Per Share and Stockholders' Equity - Narrative (Detail) - USD ($) |  | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | ---
Nov. 19, 2021 | Feb. 28, 2019 | Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |  |  |  |
Shares repurchased during the period, value |  |  | $ 611,309,000 |  | $ 24,133,000 | $ 1,002,172,000 | $ 88,275,000
Capacity remaining under current stock repurchase programs |  |  | $ 975,000,000 |  |  | $ 975,000,000 |
March 2019 Repurchase Program |  |  |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |  |  |  |
Authorized share repurchase amount |  | $ 500,000,000 |  |  |  |  |
Authorized share repurchase term |  | 3 years |  |  |  |  |
Shares repurchased during the period (in shares) |  |  |  | 615,108 |  |  |
Average price per share (in dollars per share) |  |  |  | $ 101.88 |  |  |
Shares repurchased during the period, value |  |  |  | $ 62,700,000 |  |  |
November 2021 Repurchase Program |  |  |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |  |  |  |
Authorized share repurchase amount | $ 2,000,000,000 |  |  |  |  |  |
Authorized share repurchase term | 5 years |  |  |  |  |  |
Shares repurchased during the period (in shares) |  |  | 7,510,123 |  |  | 11,073,401 |
Average price per share (in dollars per share) |  |  | $ 81.39 |  |  | $ 84.83 |
Shares repurchased during the period, value |  |  | $ 611,200,000 |  |  | $ 939,400,000 |
Contingently Issuable Shares |  |  |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |  |  |  |
Shares excluded in computation of diluted income per share (in shares) |  |  | 1,715,891 |  | 3,974 | 1,383,041 | 15,852

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