Product Warranty (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Dec. 31, 2018
Product warranty rollforward
Beginning balance, January 1	$ 103	$ 112
Provision for current period sales	15	13
Adjustments of prior estimates	7	1
Acquisitions	0	0
Payments	(18)	(10)
Translation adjustment	0	2
Ending balance, March 31	107	118
Accounts payable and accrued expenses			$ 61	$ 56
Other non-current liabilities			46	47
Total product warranty liability	$ 103	$ 112	$ 107	$ 103