CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net earnings	$ 1,934	$ 1,608	$ 6,278	$ 4,320
Other comprehensive income/(loss), net of taxes and reclassifications to earnings:
Derivatives qualifying as cash flow hedges	114	286	(7)	618
Pension and postretirement benefits	2	18	(9)	64
Marketable debt securities	(2)	0	(2)	(2)
Foreign currency translation	(13)	(153)	13	(253)
Total Other comprehensive income/(loss)	101	151	(5)	427
Comprehensive income	2,035	1,759	6,273	4,747
Comprehensive income attributable to noncontrolling interest	6	2	15	15
Comprehensive income attributable to BMS	$ 2,029	$ 1,757	$ 6,258	$ 4,732