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Leases (Details 1)
$ in Millions
Dec. 31, 2018
USD ($)
Leases [Abstract]  
2019 $ 24
2020 19
2021 16
2022 13
2023 8
Years thereafter 16
Total minimum lease payments 96
Interest portion (23)
Present value of net minimum lease payments 73
Less current portion 18
Noncurrent portion $ 55