Share-based Incentive Compensation Plans - Compensation Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 99	$ 129	$ 90
Income tax benefit	25	31	24
Share-based compensation expense	74	98	66
Restricted Share Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	60	81	45
Unrecognized compensation cost	$ 28
Expected remaining weighted-average period of expense recognition (in years)	9 months 29 days
PSU awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 39	$ 48	$ 45
Unrecognized compensation cost	$ 32
Expected remaining weighted-average period of expense recognition (in years)	1 year 2 months 8 days