FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Gain/(Loss) on Hedging Activity (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Foreign currency exchange contracts gains/(losses):
Recognized in Other comprehensive income/(loss)	$ 54	$ (191)
Reclassified to net earnings, pretax	29	(77)
Foreign currency exchange contracts
Foreign currency exchange contracts gains/(losses):
Recognized in Other comprehensive income/(loss)	67	(216)
Derivatives designated as net investment hedges
Recognized in Other comprehensive income/(loss)	(1)	(63)
Foreign currency exchange contracts \| Alliance and other revenues
Foreign currency exchange contracts gains/(losses):
Reclassified to net earnings, pretax	15	0
Foreign currency exchange contracts \| Cost of products sold
Foreign currency exchange contracts gains/(losses):
Reclassified to net earnings, pretax	0	(26)
Cross-currency swap contracts
Foreign currency exchange contracts gains/(losses):
Recognized in Other comprehensive income/(loss)	(13)	24
Derivatives designated as net investment hedges
Recognized in Other comprehensive income/(loss)	9	(18)
Cross-currency swap contracts \| (Gains)/losses recognized in Other (income)/expense, net
Foreign currency exchange contracts gains/(losses):
Reclassified to net earnings, pretax	16	(48)
Interest rate swap contracts \| (Gains)/losses recognized in Other (income)/expense, net
Foreign currency exchange contracts gains/(losses):
Reclassified to net earnings, pretax	$ (1)	$ (1)