Employee Benefit Plans - Amounts Recognized in the Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure
Noncurrent liabilities	$ (1,110)	$ (1,217)
Pension Benefits
Defined Benefit Plan Disclosure
Noncurrent assets	109	14
Current liabilities	(17)	(18)
Noncurrent liabilities	(495)	(600)
Net amount recognized	$ (403)	$ (604)

Amount of asset (liability), recognized in statement of financial position, for defined benefit pension and other postretirement plans.

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Amount of asset, recognized in statement of financial position, for overfunded defined benefit pension and other postretirement plans.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as current.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent.

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