Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net income (loss)	$ (207)	$ 102	$ (5)	$ 101
Foreign currency translation adjustment	(21)	5	(5)	(30)
Net change in unrealized gains and losses on derivative financial instruments, net of tax	(84)	(43)	(153)	(15)
Net change in certain retirement plans, net of tax	0	0	0	5
Total other comprehensive income (loss)	(105)	(38)	(158)	(40)
Total comprehensive income (loss)	$ (312)	$ 64	$ (163)	$ 61