Product Warranty (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Dec. 31, 2019
Product warranty rollforward
Beginning balance, January 1	$ 116	$ 103
Provision for current period sales	15	15
Adjustments of prior estimates	5	7
Payments	(18)	(18)
Translation adjustment	(2)	0
Ending balance, March 31	116	107
Accounts payable and accrued expenses			$ 64	$ 63
Other non-current liabilities			52	53
Total product warranty liability	$ 116	$ 107	$ 116	$ 116