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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 Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	$ 133	$ 92	$ 88
Share based compensation expense, net of tax	116	80	77
Options and SARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	15	11	12
Share based compensation expense, net of tax	13	10	11
Restricted Common Shares And Restricted Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	57	54	50
Share based compensation expense, net of tax	48	45	42
Performance Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	55	23	22
Share based compensation expense, net of tax	50	21	20
Employee Share Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	6	4	4
Share based compensation expense, net of tax	$ 5	$ 4	$ 4

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

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