Restructuring - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2023
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related cost	$ 3,700
Estimate of cumulative pre tax costs that will result in cash outlays	70.00%
Estimate of cumulative pre tax costs that will be noncash	30.00%
Total pretax restructuring costs	$ 666	$ 868	$ 880
Cumulative costs since program inception	$ 3,300
Forecast
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related cost				$ 400