Weighted Average Shares Outstanding - Schedule of Computations of Weighted Average Shares Outstanding (Detail) - shares shares in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Basic weighted-average shares outstanding (in shares)	414.1	415.7	425.3
Dilutive securities (in shares)	0.0	1.7	2.7
Diluted weighted-average shares outstanding (in shares)	414.1	417.4	428.0
Potentially dilutive restricted share awards excluded from computation of diluted EPS (in shares)	1.5