Stockholders' Equity - Common Stock Repurchased (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Equity [Abstract]
Common stock repurchased (in shares)	0	1,191,544	16,389,696	30,721,944
Average purchase price per share (in dollars per share)	$ 0	$ 14.14	$ 15.71	$ 18.00
Shares repurchased related to employee stock-based compensation plans (in shares)	10,687	448	1,088,330	1,131,351
Average purchase price per share (in dollars per share)	$ 16.14	$ 13.99	$ 15.45	$ 18.36
Common shares issued (in shares)	200,886	4,682	3,073,639	3,093,392
Remaining authority under the share repurchase program	$ 326		$ 326