Quarterly report pursuant to Section 13 or 15(d)

Leases - Narrative (Details)

v3.19.3
Leases - Narrative (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2019
Jan. 01, 2019
Dec. 31, 2018
Lessee, Lease, Description [Line Items]        
Operating lease assets $ 32 $ 32    
Operating lease, liability 33 33    
Finance lease assets 39 39   $ 41
Increase in operating lease assets and liabilities 22      
Finance lease liabilities, noncurrent 56 56   $ 59
Cash paid included in operating cash flows   6    
Cash paid included in financing activities   4    
Finance lease, amortization 1 4    
Finance lease, interest expense 1 2    
Operating lease expense $ 2 $ 5    
Accounting Standards Update 2016-02        
Lessee, Lease, Description [Line Items]        
Operating lease assets     $ 12  
Operating lease, liability     $ 12