Condensed Consolidated Statements of Comprehensive Loss (unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Loss from continuing operations	$ (311)	$ (193)	$ (272)	$ (193)
Other comprehensive income (loss) from continuing operations, net of tax:
Currency translation adjustments, net of tax expense (benefit) of $2 and $4 for the three months ended June 30, 2024 and 2023, respectively, and $13 and ($9) for the six months ended June 30, 2024 and 2023, respectively.	(108)	(76)	(292)	5
Pension and other postretirement benefits, net of tax expense (benefit) of ($1) and ($2) for the three months ended June 30, 2024 and 2023, respectively, and $2 and ($3) for the six months ended June 30, 2024 and 2023, respectively.	(1)	(5)	3	(11)
Hedging activities, net of tax expense (benefit) of $1 and $2 for the three months ended June 30, 2024 and 2023, respectively and $3 and $1 for the six months ended June 30, 2024 and 2023, respectively.	3	7	11	5
Total other comprehensive loss from continuing operations, net of tax	(106)	(74)	(278)	(1)
Comprehensive loss from continuing operations	(417)	(267)	(550)	(194)
Income from discontinued operations, net of tax	0	54	0	99
Other comprehensive income (loss) from discontinued operations, net of tax - currency translation adjustments	0	(1)	0	20
Comprehensive income from discontinued operations	0	53	0	119
Comprehensive loss	(417)	(214)	(550)	(75)
Less: Comprehensive income attributable to noncontrolling interests	3	2	5	3
Less: Other comprehensive loss attributable to noncontrolling interests	0	0	(4)	0
Comprehensive loss attributable to Baxter stockholders	$ (420)	$ (216)	$ (551)	$ (78)