CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Income (loss) from continuing operations	$ (69)	$ (2,654)	$ 1,033
Other comprehensive income (loss) from continuing operations, net of tax:
Currency translation adjustments, net of tax expense (benefit) of ($18) in 2023, $41 in 2022 and $30 in 2021	213	(445)	(264)
Pension and other postretirement benefit plans, net of tax expense of $(27) in 2023, $12 in 2022 and $60 in 2021	(117)	(2)	218
Hedging activities, net of tax expense (benefit) of zero in 2023, $2 in 2022 and $7 in 2021	(1)	7	27
Available-for-sale debt securities, net of tax expense of zero in 2023, $1 in 2022 and zero in 2021	0	3	0
Total other comprehensive income (loss) from continuing operations, net of tax	95	(437)	(19)
Comprehensive income (loss) from continuing operations	26	(3,091)	1,014
Income from discontinued operations, net of tax	2,732	233	262
Currency translation adjustments, net of tax expense (benefit) of zero in 2023, 2022 and 2021	185	(34)	(56)
Pension and other postretirement benefit plans, net of tax expense of zero in 2023, 2022 and 2021	(4)	18	9
Total other comprehensive income from discontinued operations	181	(16)	(47)
Comprehensive income from discontinued operations	2,913	217	215
Comprehensive income (loss)	2,939	(2,874)	1,229
Net income attributable to noncontrolling interests	7	12	11
Less: Other comprehensive income (loss) attributable to noncontrolling interests	(3)	(5)	0
Comprehensive income (loss) attributable to Baxter stockholders	$ 2,935	$ (2,881)	$ 1,218