Restructuring - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Restructuring Cost and Reserve [Line Items]
Total pretax restructuring costs	$ 888	$ 933
2024 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related cost	$ 4,000
Estimate of cumulative pre tax costs that will be noncash	60.00%
Total pretax restructuring costs	$ 888	190
Cumulative costs since inception	$ 1,100
2019 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Total pretax restructuring costs		$ 743	$ 666