v3.22.1

Commitments and Contingencies - Schedule of Senior Unsecured Notes (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Principal Amount Outstanding	$ 4,200,000,000
Carrying Value	4,162,465,000	$ 4,161,422,000
Fair Value	$ 3,965,356,000	4,355,789,000
4.000% Senior Unsecured Notes Due 2029 [Member]
Debt Instrument [Line Items]
Maturity Date	Nov. 15, 2029
Principal Amount Outstanding	$ 1,000,000,000
Carrying Value	991,728,000	991,455,000
Fair Value	$ 973,030,000	1,047,950,000
3.625% Senior Unsecured Notes Due 2030 [Member]
Debt Instrument [Line Items]
Maturity Date	Sep. 01, 2030
Principal Amount Outstanding	$ 900,000,000
Carrying Value	894,428,000	894,263,000
Fair Value	$ 845,955,000	924,777,000
3.875% Senior Unsecured Notes Due 2031 [Member]
Debt Instrument [Line Items]
Maturity Date	Feb. 15, 2031
Principal Amount Outstanding	$ 1,000,000,000
Carrying Value	990,247,000	989,973,000
Fair Value	$ 950,380,000	1,046,620,000
3.625% Senior Unsecured Notes Due 2031 [Member]
Debt Instrument [Line Items]
Maturity Date	Nov. 01, 2031
Principal Amount Outstanding	$ 600,000,000
Carrying Value	593,702,000	593,538,000
Fair Value	$ 565,200,000	625,536,000
3.250% Senior Unsecured Notes Due 2033 [Member]
Debt Instrument [Line Items]
Maturity Date	Aug. 15, 2033
Principal Amount Outstanding	$ 700,000,000
Carrying Value	692,360,000	692,193,000
Fair Value	$ 630,791,000	$ 710,906,000

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