Condensed Consolidated Statements of Loss (unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Net sales	$ 3,812	$ 3,707	$ 7,404	$ 7,220
Cost of sales	2,381	2,596	4,586	4,834
Gross margin	1,431	1,111	2,818	2,386
Selling, general and administrative expenses	1,021	964	2,048	1,959
Research and development expenses	173	165	349	329
Goodwill impairment	430	0	430	0
Other operating income, net	(1)	(1)	(4)	(14)
Operating income (loss)	(192)	(17)	(5)	112
Interest expense, net	85	124	163	241
Other (income) expense, net	20	(42)	27	(40)
Loss from continuing operations before income taxes	(257)	(183)	(141)	(169)
Income tax expense	54	10	131	24
Loss from continuing operations	(311)	(193)	(272)	(193)
Income from discontinued operations, net of tax	0	54	0	99
Net loss	(311)	(139)	(272)	(94)
Less: Comprehensive income attributable to noncontrolling interests	3	2	5	3
Net loss attributable to Baxter stockholders	$ (314)	$ (141)	$ (277)	$ (97)
Loss from continuing operations per common share
Income from continuing operations per common share, basic (in dollars per share)	$ (0.62)	$ (0.39)	$ (0.54)	$ (0.39)
Income from continuing operations per common share, diluted (in dollars per share)	(0.62)	(0.39)	(0.54)	(0.39)
Income from discontinued operations per common share
Income from discontinued operations per common share, basic (in dollars per share)	0.00	0.11	0.00	0.20
Income from discontinued operations per common share, diluted (in dollars per share)	0.00	0.11	0.00	0.20
Loss per common share
Basic (in dollars per share)	(0.62)	(0.28)	(0.54)	(0.19)
Diluted (in dollars per share)	$ (0.62)	$ (0.28)	$ (0.54)	$ (0.19)
Weighted-average number of shares outstanding
Basic (in shares)	510	506	509	506
Diluted (in shares)	510	506	509	506