Condensed Consolidated Statements of Income (Loss) (unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement [Abstract]
Net sales	$ 3,707	$ 3,594	$ 7,220	$ 7,152
Cost of sales	2,596	2,223	4,834	4,519
Gross margin	1,111	1,371	2,386	2,633
Selling, general and administrative expenses	964	970	1,959	2,017
Research and development expenses	165	148	329	297
Other operating income, net	(1)	(11)	(14)	(28)
Operating income (loss)	(17)	264	112	347
Interest expense, net	124	89	241	174
Other (income) expense, net	42	(44)	40	(60)
Income (loss) from continuing operations before income taxes	(183)	219	(169)	233
Income tax expense	10	34	24	40
Income (loss) from continuing operations	(193)	185	(193)	193
Income from discontinued operations, net of tax	54	70	99	135
Net income (loss)	(139)	255	(94)	328
Net income attributable to noncontrolling interests	2	3	3	5
Net income (loss) attributable to Baxter stockholders	$ (141)	$ 252	$ (97)	$ 323
Income (loss) from continuing operations per common share
Income from continuing operations per common share, basic (in dollars per share)	$ (0.39)	$ 0.36	$ (0.39)	$ 0.37
Income from continuing operations per common share, diluted (in dollars per share)	(0.39)	0.36	(0.39)	0.37
Income from discontinued operations per common share
Income from discontinued operations per common share, basic (in dollars per share)	0.11	0.14	0.20	0.27
Income from discontinued operations per common share, diluted (in dollars per share)	0.11	0.14	0.20	0.27
Net income (loss) per common share
Basic (in dollars per share)	(0.28)	0.50	(0.19)	0.64
Diluted (in dollars per share)	$ (0.28)	$ 0.50	$ (0.19)	$ 0.64
Weighted-average number of shares outstanding
Basic (in shares)	506	504	506	503
Diluted (in shares)	506	508	506	508