Stock-Based Compensation - Stock Based Compensation Activity (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Number of Shares
Balance (in shares)	306
Time-based RSUs
Number of Shares
Balance (in shares)	290
Granted (in shares)	165
Vested (in shares)	(123)
Forfeited (in shares)	(26)
Balance (in shares)		290
Outstanding and expected to vest (in shares)	306
Weighted Average Grant Date Fair Value
Balance (in dollars per share)	$ 161.87
Granted (in dollars per share)	109.80	$ 204.17	$ 172.34
Vested (in dollars per share)	138.07
Forfeited (in dollars per share)	162.88
Balance (in dollars per share)		$ 161.87
Outstanding and expected to vest, weighted average grant date fair value (in dollars per share)	$ 143.25
Outstanding and expected to vest weighted average remaining contractual term (in years)	1 year 3 months 18 days
Aggregate intrinsic value, outstanding and expected to vest	$ 25
Fair value vested in period	32	$ 21	$ 22
Cost not yet recognized	$ 26
Period for recognition	1 year 3 months 18 days
Performance-based RSUs
Number of Shares
Balance (in shares)	411
Granted (in shares)	152
Vested (in shares)	(222)
Forfeited (in shares)	(26)
Balance (in shares)	315	411
Outstanding and expected to vest (in shares)	64
Weighted Average Grant Date Fair Value
Balance (in dollars per share)	$ 128.77
Granted (in dollars per share)	112.34	$ 204.13	$ 193.48
Vested (in dollars per share)	68.54
Forfeited (in dollars per share)	172.89
Balance (in dollars per share)	159.62	$ 128.77
Outstanding and expected to vest, weighted average grant date fair value (in dollars per share)	$ 192.77
Outstanding and expected to vest weighted average remaining contractual term (in years)	1 year 4 months 24 days
Outstanding weighted average remaining contractual terms (in years)	1 year 4 months 24 days
Aggregate intrinsic value, outstanding and expected to vest	$ 5
Aggregate intrinsic value outstanding	$ 25