Restructuring and Related Implementation Charges - Summary of Restructuring and Related Costs (Details) - Global Productivity Initiative $ in Millions	3 Months Ended
	Mar. 31, 2022 USD ($)
Restructuring Cost and Reserve [Line Items]
Total 2022 Global Productivity Initiative charges, pretax	$ 82
Total 2022 Global Productivity Initiative charges, aftertax	65
Other (income) expense, net
Restructuring Cost and Reserve [Line Items]
Total 2022 Global Productivity Initiative charges, pretax	63
Non-service related postretirement costs
Restructuring Cost and Reserve [Line Items]
Total 2022 Global Productivity Initiative charges, pretax	$ 19