CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME LOSS [Abstract]
Net loss		$ (708)	$ (1,739)	$ (2,433)	$ (2,449)
Change in derivatives:
Settlements	[1]		(31)		(89)
Ineffectiveness			1		1
Change in fair value of derivative instruments	[2]		8		21
Total change in derivatives			(22)		(67)
Change in value of pension and other postretirement liabilities:
Amortization of prior service cost and net loss included in net periodic pension cost	[3]	1	1	1	1
Net gain incurred in period	[4]	1		5
Change in currency translation adjustment			(5)	3	(9)
Comprehensive loss		$ (706)	$ (1,765)	$ (2,424)	$ (2,524)

[1] Net of ($19) million and ($56) million in taxes for the three and nine months ended September 30, 2015, respectively.

[2] Net of $5 million and $13 million in taxes for the three and nine months ended September 30, 2015, respectively.

[3] Net of $1 million in taxes for the nine months ended September 30, 2016 and 2015.

[4] Net of $1 million and $2 million in taxes for the three and nine months ended September 30, 2016, respectively.