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Leases (Schedule of Lease Maturity) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Future payments - operating leases
2020	$ 54
2021	44
2022	37
2023	33
2024	25
Thereafter	119
Total	312
Operating Leases
Total	312
Less imputed interest	81
Present value of future lease payments	231
Less current portion of lease obligations	39	$ 40	$ 0
Noncurrent portion of lease obligations	$ 192	$ 213	$ 0

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Amount of lessee's undiscounted obligation for lease payments for operating lease.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
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