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Leases - Future Minimum Lease Commitments for Leases with Initial or Remaining Terms of One Year or More (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Jan. 01, 2019
Operating
Operating lease, 2020	$ 98
Operating lease, 2021	81
Operating lease, 2022	64
Operating lease, 2023	49
Operating lease, 2024	40
Operating lease, Thereafter	228
Total lease payments	560
Less: Interest	(52)
Present value of lease liabilities	508	$ 554
Finance
Finance leases, 2020	38
Finance leases, 2021	33
Finance leases, 2022	25
Finance leases, 2023	18
Finance leases, 2024	15
Finance leases, Thereafter	210
Total lease payments	339
Less: Interest	(59)
Present value of lease liabilities	$ 280	$ 285

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