Quarterly report pursuant to Section 13 or 15(d)

Debt - Interest Expense (Details)

v3.8.0.1
Debt - Interest Expense (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Debt Disclosure [Abstract]    
Total interest cost $ 232 $ 211
Capitalized interest (47) (81)
Total interest expense, net $ 185 $ 130