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Share-Based Compensation - Share-Based Compensation Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation
Share-based compensation expense	$ 251	$ 249	$ 214
Total income tax benefit recognized related to share-based compensation expense	53	52	45
Total unrecognized compensation cost related to non-vested awards	$ 183
Weighted-average period unrecognized compensation cost expected to be recognized	3 years
Stock option
Share-based Compensation
Share-based compensation expense	$ 15	16	16
Restricted stock
Share-based Compensation
Share-based compensation expense	25	27	27
Restricted stock units and deferred share units
Share-based Compensation
Share-based compensation expense	153	144	127
Liability awards
Share-based Compensation
Share-based compensation expense	$ 58	$ 62	$ 44

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