Leases - Future Minimum Commitments for Capital Leases and Operating Leases (Details) $ in Millions	Dec. 31, 2018 USD ($)
Capital Leases
Capital leases future minimum payment in 2019	$ 5
Capital leases future minimum payment in 2020	5
Capital leases future minimum payment in 2021	5
Capital leases future minimum payment in 2022	11
Capital leases future minimum payment in 2023	0
Capital leases future minimum payment, later years	0
Total minimum lease payments	26
Less imputed interest costs	4
Present value of net minimum lease payments included in long-term debt (see Note 17)	22
Operating Leases
Operating leases future minimum payment in 2019	66
Operating leases future minimum payment in 2020	55
Operating leases future minimum payment in 2021	45
Operating leases future minimum payment in 2022	37
Operating leases future minimum payment in 2023	28
Operating leases future minimum payment, later years	72
Total minimum lease payments	$ 303

Amount of minimum lease payments for capital leases.

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Amount of minimum lease payments for capital leases due in the next 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 minimum lease payments for capital leases due in 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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Amount of minimum lease payments for capital leases due in the fourth 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 minimum lease payments for capital leases 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 minimum lease payments for capital leases 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 minimum lease payments for capital leases 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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Amount necessary to reduce net minimum lease payments to present value for capital leases.

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Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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