Quarterly report pursuant to Section 13 or 15(d)

Leases - Undiscounted Cash Flows (Details)

v3.19.2
Leases - Undiscounted Cash Flows (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2019
Dec. 31, 2018
Leases [Abstract]      
Finance lease, amortization $ 1 $ 2  
Operating Lease, Cost 1 3  
Operating Leases      
Remainder of 2019 4 4  
2020 7 7  
2021 6 6  
2022 4 4  
2023 3 3  
2024 3 3  
Thereafter 13 13  
Total minimum lease payments 40 40  
Less: amount of lease payments representing interest 6 6  
Present value of future minimum lease payments 34 34  
Less: current obligations under leases 6 6  
Long-term lease obligations 28 28  
Finance Lease, Liability, Payment, Due [Abstract]      
2019 4 4  
2020 7 7  
2021 7 7  
2022 7 7  
2023 7 7  
2024 7 7  
Thereafter 38 38  
Total minimum lease payments 77 77  
Less: amount of lease payments representing interest 14 14  
Present value of future minimum lease payments 63 63 $ 65
Less: current obligations under leases 5 5  
Long-term lease obligations $ 58 $ 58 $ 59