Segment and Geographic Data (Revenue by Segment) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenue from External Customer [Line Items]
Revenue	$ 1,373	$ 1,220	$ 1,160	$ 1,123	$ 1,371	$ 1,296	$ 1,345	$ 1,237	$ 4,876	$ 5,249	$ 5,207
Pumps, accessories, parts and service
Revenue from External Customer [Line Items]
Revenue									3,120	3,324	3,322
Other
Revenue from External Customer [Line Items]
Revenue									$ 1,756	$ 1,925	$ 1,885