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Leases - Maturities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2022	$ 168
2023	116
2024	85
2025	61
2026	42
Thereafter	89
Total lease payments	561
Less: imputed interest	(82)
Operating lease liability	$ 479	$ 573
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Accounts Payable and Accrued Liabilities	Accounts Payable and Accrued Liabilities
Finance Lease, Liability, Payment, Due [Abstract]
2022	$ 16
2023	14
2024	12
2025	12
2026	12
Thereafter	31
Total lease payments	97
Less: imputed interest	(25)
Finance Lease, Liability	$ 72	$ 81

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-Publisher FASB
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-SubTopic 20
-Section 50
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Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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