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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