Operating Revenue - Segment Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Revenue	$ 3,479	$ 3,613	$ 10,640	$ 11,188
Operating segments | Automotive OEM
Disaggregation of Revenue [Line Items]
Revenue	744	781	2,338	2,561
Operating segments | Food Equipment
Disaggregation of Revenue [Line Items]
Revenue	551	567	1,617	1,647
Operating segments | Test & Measurement and Electronics
Disaggregation of Revenue [Line Items]
Revenue	512	536	1,569	1,633
Operating segments | Welding
Disaggregation of Revenue [Line Items]
Revenue	402	414	1,251	1,277
Operating segments | Polymers & Fluids
Disaggregation of Revenue [Line Items]
Revenue	418	415	1,261	1,302
Operating segments | Construction Products
Disaggregation of Revenue [Line Items]
Revenue	416	431	1,241	1,303
Operating segments | Specialty Products
Disaggregation of Revenue [Line Items]
Revenue	441	475	1,379	1,482
Intersegment revenue
Disaggregation of Revenue [Line Items]
Revenue	$ (5)	$ (6)	$ (16)	$ (17)