Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Supplemental Cash Flow Information [Abstract]
Cash payments for interest, net of amounts capitalized	$ 540	$ 538
Net cash payments for income taxes	120	66
Acquisition of subsidiary common stock included in accrued expenses and other liabilities	51	0
Seller financing secured mortgages resulting from disposition of assets	375	0
Investment in subsidiaries prior to acquiring a controlling interest	0	286
LP unit issuance for remaining 25% interest in ARL	0	35
Capital expenditures included in accounts payable, accrued expenses and other liabilities	70	63
Subsidiary common unit issuance for acquisition of CVR Nitrogen	$ 0	$ 336