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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Minimum Future Rental Payments Under Non-Cancelable Operating Leases
The schedule of minimum future rental payments under non-cancelable operating leases having initial terms in excess of one year at December 31, 2018, is as follows:
(in millions)
Operating Leases
Year ending December 31:
 
2019
$
18

2020
17

2021
11

2022
9

2023
8

Thereafter
25

Minimum lease payments
$
88