CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income before non-controlling interest	$ 93.2	$ 91.2	$ 179.1	$ 222.1
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	17.2	(57.8)	32.1	(75.3)
Other comprehensive income (loss), net of tax	17.2	(57.8)	32.1	(75.3)
Comprehensive income	110.4	33.4	211.2	146.8
Less: Comprehensive income attributable to non-controlling interest	0.8	0.6	1.4	0.8
Comprehensive income attributable to Tempur Sealy International, Inc.	$ 109.6	$ 32.8	$ 209.8	$ 146.0