Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 375	$ 518	$ 1,030	$ 1,241
Other comprehensive (loss) income, net of tax:
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(177)	(9)	(272)	(314)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	17	9	37	94
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	(42)	2	(69)	8
Net other comprehensive income (loss)	(202)	2	(304)	(212)
Comprehensive income	173	520	726	1,029
Less: Comprehensive income attributable to noncontrolling interests	6	0	6	0
Comprehensive income attributable to Baxter stockholders	$ 167	$ 520	$ 720	$ 1,029