Stock-Based Compensation - Narrative (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate maximum of common shares (in shares)	20
Common shares available for grant (in shares)	16
Stock-based compensation expense	$ 34	$ 35
Stock Options, SARs and ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense related to stock options, SAR and ESPP grants	6	8
Unrecognized compensation expense	$ 28
Weighted average period over which unrecognized compensation expense will be recognized (in years)	1 year 1 month 6 days
Restricted Stock And Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense	$ 261
Weighted average period over which unrecognized compensation expense will be recognized (in years)	1 year 7 months 6 days
Share-based compensation arrangement by restricted stock and restricted stock units compensation cost	$ 25	25
Performance Unit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense	$ 15
Weighted average period over which unrecognized compensation expense will be recognized (in years)	2 years
Performance period for performance units and shares (in years)	3 years
Minimum performance multiple at the completion of the performance period (as a percent)	0.00%
Maximum performance multiple at the completion of the performance period (as a percent)	200.00%
Average return on capital employed (in years)	3 years
Maximum performance multiple at the completion of the performance period if TSR is negative (as a percent)	100.00%
Stock-based compensation expense	$ 3	$ 2
Performance Unit \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Modifier applied to performance based multiple	(70.00%)
Performance Unit \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Modifier applied to performance based multiple	70.00%

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Maximum Performance Multiple at the Completion of the Performance Period

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Maximum Performance Multiple at the Completion of the Performance Period Cap If TSR Is Negative

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Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.

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

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Aggregate number of common shares reserved for future issuance.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of noncash expense for award of restricted stock or unit under share-based payment arrangement.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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