CONDENSED CONSOLIDATED STATEMENTS OF INCOME - 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	$ 1,269.7	$ 1,211.0	$ 2,477.8	$ 2,450.5
Cost of sales	727.4	714.5	1,435.6	1,431.2
Gross profit	542.3	496.5	1,042.2	1,019.3
Selling and marketing expenses	270.2	252.9	526.9	496.4
General, administrative and other expenses	117.5	102.3	222.0	199.9
Equity income in earnings of unconsolidated affiliates	(4.2)	(2.6)	(8.8)	(9.5)
Operating income	158.8	143.9	302.1	332.5
Other expense, net:
Interest expense, net	33.6	23.7	66.4	44.6
Other (income) expense, net	(0.2)	0.7	(0.1)	(0.6)
Total other expense, net	33.4	24.4	66.3	44.0
Income before income taxes	125.4	119.5	235.8	288.5
Income tax provision	(32.2)	(28.3)	(56.7)	(66.4)
Net income before non-controlling interest	93.2	91.2	179.1	222.1
Less: Net income attributable to non-controlling interest	0.8	0.6	1.4	0.8
Net income attributable to Tempur Sealy International, Inc.	$ 92.4	$ 90.6	$ 177.7	$ 221.3
Earnings per common share:
Basic (in dollars per share)	$ 0.54	$ 0.52	$ 1.03	$ 1.24
Diluted (in dollars per share)	$ 0.52	$ 0.51	$ 1.01	$ 1.20
Weighted average common shares outstanding:
Basic (in shares)	172.1	174.1	172.1	178.3
Diluted (in shares)	176.8	178.8	176.8	183.7