Stockholders' Equity - Common Share Repurchases, Issuances and Dividends Paid (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Equity, Class of Treasury Stock [Line Items]
Average purchase price per share	$ 17.21	$ 16.13	$ 17.46
Remaining common stock repurchase authority	$ 290	$ 600	$ 1,000
Shares repurchased related to employee stock-based compensation plans	1,300,000	1,200,000	3,000,000.0
Average purchase price per share	$ 18.44	$ 17.84	$ 13.65
Common shares issued	2,600,000	2,500,000	4,900,000
Dividends paid	$ 78	$ 91	$ 107
Dividends per share	$ 0.64	$ 0.64	$ 0.64
Common Stock Shares Outstanding [Member]
Equity, Class of Treasury Stock [Line Items]
Common stock repurchased, shares	18,000,000	24,800,000	34,400,000
Common stock repurchased, value	$ 310	$ 400	$ 600
Shares repurchased related to employee stock-based compensation plans	1,315,644	1,180,530	3,039,019
Common shares issued		2,458,206	4,850,409