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Leases (Tables)
9 Months Ended
Sep. 30, 2019
Leases [Abstract]  
Undiscounted annual future minimum lease payments The undiscounted annual future minimum lease payments are summarized by year in the table below:
Maturity of Lease Liabilities
Operating Leases
(in millions)
2019
$
45

2020
166

2021
139

2022
119

2023
107

After 2023
309

Total lease payments
$
885

Less: interest
123

Present value of lease liabilities
$
762