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Share-Based Compensation - Share-Based Compensation Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	$ 148	$ 133	$ 92
Share based compensation expense, net of tax	122	116	80
Options and SARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	30	15	11
Share based compensation expense, net of tax	25	13	10
Restricted Common Shares And Restricted Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	71	57	54
Share based compensation expense, net of tax	57	48	45
Performance Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	41	55	23
Share based compensation expense, net of tax	34	50	21
Employee Share Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	6	6	4
Share based compensation expense, net of tax	$ 6	$ 5	$ 4

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- Definition

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

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