Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Summary of Related Party Balances (Details)

v3.19.2
Related Party Transactions - Summary of Related Party Balances (Details) - USD ($)
$ in Millions
Jun. 30, 2019
Dec. 31, 2018
Related Party Transaction [Line Items]    
Related party current assets $ 11 $ 11
Related party long-term assets 456 960
Related party current liabilities 4 4
Related party long-term liabilities $ 2 $ 4