CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income before non-controlling interests	$ 133.2	$ 177.4	$ 355.3	$ 448.5
Other comprehensive income, net of tax:
Foreign currency translation adjustments	(64.8)	(29.9)	(140.1)	(34.0)
Other comprehensive loss, net of tax	(64.8)	(29.9)	(140.1)	(34.0)
Comprehensive income	68.4	147.5	215.2	414.5
Less: Comprehensive income (loss) attributable to non-controlling interests	0.5	0.0	1.3	(0.2)
Comprehensive income attributable to Tempur Sealy International, Inc.	$ 67.9	$ 147.5	$ 213.9	$ 414.7