CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax, Portion Attributable to Parent	$ (2)	$ (10)	$ (4)	$ (18)
Change in net prior service credit, tax	(3)	0	(5)	(1)
Foreign currency translation adjustment and other, tax	$ 0	$ 2	$ 0	$ 0