Income taxes (Details 3) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Components of profit (loss) before taxes
U.S	$ 2,740	$ 590	$ 2,888
Non-U.S	5,464	3,405	4,924
Consolidated profit before tax	8,204	3,995	7,812
Current tax provision (benefit):
U.S.	766	18	405
Non-U.S.	1,283	1,031	1,261
State (U.S.)	76	31	52
Current tax provision (benefit)	2,125	1,080	1,718
Deferred tax provision (benefit):
U.S.	(387)	(44)	17
Non-U.S.	54	(34)	(7)
State (U.S.)	(50)	4	18
Deferred tax provision (benefit)	(383)	(74)	28
Provision (benefit) for income taxes	1,742	1,006	1,746
Income Taxes Paid	$ 1,759	$ 1,311	$ 1,847