Restructuring Costs - Schedule of Pretax Restructuring Costs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Restructuring Cost and Reserve [Line Items]
Net pre-tax restructuring costs	$ 20	$ 4	$ 46	$ 44
Cost of products and services sold
Restructuring Cost and Reserve [Line Items]
Net pre-tax restructuring costs	9	3	19	18
Selling, general and administrative
Restructuring Cost and Reserve [Line Items]
Net pre-tax restructuring costs	$ 11	$ 1	$ 27	$ 26