Changes in Warranty Liabilities (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Balance, beginning of period	$ 56	$ 63	$ 54	$ 66
Amounts accrued for current period sales	5	5	9	9
Adjustments of prior accrual estimates	7	2	11	4
Settlements of warranty claims	(9)	(10)	(15)	(19)
Currency impact		(1)		(1)
Balance, end of period	$ 59	$ 59	$ 59	$ 59