Segments - Revenue Reconciliation (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021		Sep. 30, 2022	Sep. 30, 2021
Revenue
Revenue	$ 14,107	$ 13,251	[1]	$ 43,840	$ 40,656	[1]
Business Segments
Revenue
Revenue	14,037	12,969		43,365	39,812
Other
Revenue
Other - divested businesses	3	189		319	583
Other revenue	$ 68	$ 93		$ 156	$ 261

[1] Reclassified to reflect discontinued operations presentation.