Leases - Operating Lease Payments (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2020	$ 19
2021	11
2022	10
2023	9
2024	6
2025 and thereafter	19
Total future minimum lease payments	74
Less: imputed interest	(9)
Total operating lease liabilities	65
Current portion	17
Non-current portion	$ 48
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2019		$ 18
2020		17
2021		11
2022		9
2023		8
2024		5
2025 and thereafter		20
Total future minimum lease payments		$ 88

Operating Leases, Future Minimum Payments, Due In Six Years

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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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Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fifth fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in third fiscal year following latest fiscal year.

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

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-SubTopic 20
-Section 45
-Paragraph 1
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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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