CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 1,295	$ 1,110	$ 1,011
Other comprehensive (loss) income, net of tax:
Currency translation adjustments, net of tax expense (benefit) of $30 in 2021, ($51) in 2020 and $(5) in 2019	(320)	367	(95)
Pension and other postretirement benefit plans, net of tax expense of $60 in 2021 $40 in 2020 and $130 in 2019	227	141	408
Hedging activities, net of tax expense (benefit) of $7 in 2021, $(34) in 2020 and ($11) in 2019	27	(112)	(39)
Total other comprehensive (loss) income, net of tax	(66)	396	274
Comprehensive income	1,229	1,506	1,285
Less: Comprehensive income attributable to noncontrolling interests	11	8	10
Comprehensive income attributable to Baxter stockholders	$ 1,218	$ 1,498	$ 1,275