Warranty Liability (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Balance at the beginning of the period	$ 152	$ 135
Accruals for warranties issued during the year	13	56
Accruals related to pre-existing warranties	0	15
Settlements made (in cash or kind) during the year	(13)	(50)
Other, net (including currency translation)	0	(4)
Balance at the end of the period	$ 152	$ 152