Earnings Per Share - Computation of Basic and Diluted Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share [Abstract]
Net income	$ 275	$ 113	$ 454	$ 922
Weighted average shares of common stock outstanding (in thousands):
Basic	66,424	71,175	67,719	72,569
Dilutive effect of stock awards	1,244	1,703	1,319	1,988
Diluted	67,668	72,878	69,038	74,557
Earnings Per Share, Basic [Abstract]
Basic	$ 4.14	$ 1.59	$ 6.70	$ 12.71
Diluted	$ 4.06	$ 1.55	$ 6.58	$ 12.37