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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]  
Supplemental Balance Sheet Information
Supplemental balance sheet information related to leases was as follows:
 
 
December 31, 2019
 
 
(in millions)
Operating lease assets(1)(4)
 
$
18

Finance lease assets(2)
 
10

        Total lease assets
 
$
28

 
 
 
Operating leases(3)(4)
 
 
   Current liability
 
$
9

   Noncurrent liability
 
9

        Total operating lease liability
 
$
18

Finance leases(3)
 
 
   Current liability
 
$
2

   Noncurrent liability
 
9

        Total finance lease liability
 
$
11

 
 
 
Weighted average remaining lease term
 
 
   Operating leases
 
3 years

   Finance leases
 
4 years

Weighted average discount rate
 
 
   Operating leases
 
9.06
%
   Finance leases
 
26.53
%
 
(1)
Operating lease assets are reflected in Operating lease assets and other in our consolidated balance sheet as of December 31, 2019.
(2)
Finance lease assets are reflected in Other property, plant and equipment in our consolidated balance sheet as of December 31, 2019.
(3)
Current and noncurrent operating and finance lease liabilities are reflected in Other current liabilities and Lease obligations and other, respectively, in our consolidated balance sheet as of December 31, 2019.
(4)
Upon adoption of ASU 2016-02 effective January 1, 2019, we recognized operating leases of approximately $10 million. For the year ended December 31, 2019, we also recorded an additional $16 million of operating leases.
Schedule of Future Minimum Annual Rental Commitments for Non-Cancelable Future Operating Leases
Future minimum annual rental commitments under non-cancelable future operating and finance lease commitments at December 31, 2019, were as follows:
Year Ending December 31,
 
Operating Leases
 
Finance Leases
 
 
(in millions)
2020
 
$
10

 
$
5

2021
 
3

 
5

2022
 
2

 
5

2023
 
2

 
2

Thereafter
 
4

 
—

Total
 
$
21

 
$
17

Less: imputed interest
 
(3
)
 
(6
)
   Present value of operating and finance lease obligations
 
$
18

 
$
11
Schedule of Future Minimum Annual Rental Commitments for Finance Leases
Future minimum annual rental commitments under non-cancelable future operating and finance lease commitments at December 31, 2019, were as follows:
Year Ending December 31,
 
Operating Leases
 
Finance Leases
 
 
(in millions)
2020
 
$
10

 
$
5

2021
 
3

 
5

2022
 
2

 
5

2023
 
2

 
2

Thereafter
 
4

 
—

Total
 
$
21

 
$
17

Less: imputed interest
 
(3
)
 
(6
)
   Present value of operating and finance lease obligations
 
$
18

 
$
11