Annual report pursuant to Section 13 and 15(d)

Supplemental Cash Flow Information (Details)

v3.8.0.1
Supplemental Cash Flow Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Supplemental Cash Flow Information [Abstract]      
Cash paid during the period for interest, net of amounts capitalized $ 305 $ 66 $ 123
Contribution of assets to equity method investee 14 0 0
Non-cash conveyance of assets 0 0 13
Balance in property, plant and equipment, net funded with accounts payable and accrued liabilities $ 521 $ 395 $ 301