Changes in Accumulated Other Comprehensive Income Changes in Accumulated Other Comprehensive Income Level 4 - (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (67)	$ 189	$ (28)	$ 202
Other comprehensive (income) loss, pension and other postretirement benefit plans, adjustment, net of tax	0	22	2	21
Other comprehensive loss before reclassifications, net of tax	(14)	30	(53)	16
Other comprehensive income (loss), foreign currency transaction and translation adjustment, net of tax	(14)	52	(51)	38
Amounts reclassified from Accumulated other comprehensive loss, net of tax	0	0	0	1
Net Other Comprehensive Income	(14)	30	(53)	17
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	(81)	219	(81)	219
Pension and Postretirement Items [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(1)	(36)	1	(37)
Other comprehensive loss before reclassifications, net of tax		(22)	(2)	(22)
Amounts reclassified from Accumulated other comprehensive loss, net of tax	0	0	0	1
Net Other Comprehensive Income	0	(22)	(2)	(21)
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	(1)	(58)	(1)	(58)
Foreign Currency Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(66)	225	(29)	239
Other comprehensive income (loss), foreign currency transaction and translation adjustment, net of tax	(14)	52	(51)	38
Amounts reclassified from Accumulated other comprehensive loss, net of tax	0	0	0	0
Net Other Comprehensive Income	(14)	52	(51)	38
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	$ (80)	$ 277	$ (80)	$ 277