Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended				12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022		Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Numerator:
Net income, basic	$ 417	$ 825
Net income, diluted	$ 417	$ 825
Denominator:
Basic: Weighted-average common shares outstanding (in shares)	107.9	113.7
Effect of potentially dilutive nonqualified stock options and other share-based awards (in shares)	2.1	2.5
Diluted: Weighted-average common shares outstanding (in shares)	110.0	116.2
Earnings per share:
Basic (in dollars per share)	$ 3.86	$ 7.26	[1]	$ 11.98	$ 28.29	$ 29.13
Diluted (in dollars per share)	$ 3.79	$ 7.10	[1]	$ 11.74	$ 27.70	$ 28.48
Options excluded from earnings per share calculation due to their anti-dilutive effect (in shares)	0.3	0.2

[1] Certain prior period amounts have been restated. See Note 3 for more information.