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
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (43)	$ 36	$ (91)	$ (33)
Other comprehensive income (loss):
Foreign currency translation adjustments	(18)	9	18	(39)
Unrealized holding gains (losses) on securities	(8)	0	9	0
Net gain (loss) on defined benefit pension plans	(34)	0	(34)	0
Reclassification from other comprehensive income (loss) to selling, general and administrative expense for amortization of actuarial (gains) losses on defined benefit pension plans	2	4	4	6
Total other comprehensive income (loss) before income taxes	(58)	13	(3)	(33)
Income tax (provision) benefit related to net gains and losses on defined benefit pension plans	14	0	14	0
Income tax (provision) benefit related to reclassified amounts of net periodic costs on defined benefit pension plans	(1)	(2)	(2)	(2)
Total other comprehensive income (loss)	(45)	11	9	(35)
Total comprehensive income (loss)	$ (88)	$ 47	$ (82)	$ (68)