Restructuring Program - Restructuring Liability Activity (Details) - Simplify to Grow Program - USD ($) $ in Millions		12 Months Ended			92 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]
Liability Balance, January 1		$ 304	$ 301
Charges		154	156	$ 176	$ 3,036
Cash spent		(160)	(169)
Non-cash settlements		(73)
Non-cash adjustments			(6)
Currency		(14)	10
Liability Balance, December 31		211	304	301	211
Severance and related costs
Restructuring Cost and Reserve [Line Items]
Liability Balance, January 1		304	301
Charges		86	168
Cash spent		(160)	(169)
Non-cash settlements		(5)	(6)
Currency		(14)	10
Liability Balance, December 31		211	304	301	211
Asset write-down and other
Restructuring Cost and Reserve [Line Items]
Liability Balance, January 1	[1]	0	0
Charges	[1]	68	(12)
Cash spent	[1]	0	0
Non-cash settlements	[1]	(68)
Non-cash adjustments	[1]		(12)
Currency	[1]	0	0
Liability Balance, December 31	[1]	$ 0	$ 0	$ 0	$ 0

[1] Includes gains as a result of assets sold which are included in the restructuring program.