Outstanding and Weighted Average Common Shares - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Equity [Abstract]
Stock repurchase program, authorized amount	$ 1,000
Shares repurchased (in shares)	0	0	5,400,000
Common stock acquired and retired			$ 650
Common stock acquired and retired	$ 0	$ 20	$ 630
Cash dividends on common stock (in dollars per share)	$ 1.875	$ 1.75	$ 1.50