CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Net sales	$ 648.0	$ 722.1
Cost of sales	380.1	435.5
Gross profit	267.9	286.6
Selling and marketing expenses	148.9	153.7
General, administrative and other expenses	69.0	66.5
Customer termination charges, net	0.0	14.4
Equity income in earnings of unconsolidated affiliates	(3.9)	(2.7)
Royalty income, net of royalty expense	0.0	(4.8)
Operating income	53.9	59.5
Other expense, net:
Interest expense, net	22.9	22.1
Other income, net	(1.8)	(9.2)
Total other expense, net	21.1	12.9
Income before income taxes	32.8	46.6
Income tax provision	(10.0)	(14.6)
Net income before non-controlling interest	22.8	32.0
Less: Net loss attributable to non-controlling interest	(0.3)	(1.9)
Net income attributable to Tempur Sealy International, Inc.	$ 23.1	$ 33.9
Earnings per common share:
Basic (in dollars per share)	$ 0.43	$ 0.63
Diluted (in dollars per share)	$ 0.42	$ 0.62
Weighted average common shares outstanding:
Basic (in shares)	54.3	53.9
Diluted (in shares)	54.9	54.6