Condensed Consolidated Statements of Income (unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Net sales	$ 3,746	$ 3,098	$ 7,453	$ 6,044
Cost of sales	2,293	1,865	4,652	3,666
Gross margin	1,453	1,233	2,801	2,378
Selling, general and administrative expenses	976	675	2,028	1,302
Research and development expenses	148	139	298	267
Other operating income, net	(11)	(5)	(28)	(5)
Operating income	340	424	503	814
Interest expense, net	89	34	174	68
Other (income) expense, net	(44)	(2)	(60)	3
Income before income taxes	295	392	389	743
Income tax expense	40	91	61	142
Net income	255	301	328	601
Net income attributable to noncontrolling interests	3	3	5	5
Net income attributable to Baxter stockholders	$ 252	$ 298	$ 323	$ 596
Earnings per share
Basic (in dollars per share)	$ 0.50	$ 0.59	$ 0.64	$ 1.18
Diluted (in dollars per share)	$ 0.50	$ 0.59	$ 0.64	$ 1.17
Weighted-average number of shares outstanding
Basic (in shares)	504	503	503	504
Diluted (in shares)	508	509	508	510