Condensed Consolidated Statements of Income (unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Net sales	$ 3,707	$ 2,946
Cost of sales	2,359	1,801
Gross margin	1,348	1,145
Selling, general and administrative expenses	1,052	627
Research and development expenses	150	128
Other operating income, net	(17)	0
Operating income	163	390
Interest expense, net	85	34
Other (income) expense, net	(16)	5
Income before income taxes	94	351
Income tax expense	21	51
Net income	73	300
Net income attributable to noncontrolling interests	2	2
Net income attributable to Baxter stockholders	$ 71	$ 298
Earnings per share
Basic (in dollars per share)	$ 0.14	$ 0.59
Diluted (in dollars per share)	$ 0.14	$ 0.58
Weighted-average number of shares outstanding
Basic (in shares)	503	505
Diluted (in shares)	509	511