Guarantor/Non-Guarantor Financial Information - Schedule of Supplemental Condensed Consolidating Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current Assets:
Cash and cash equivalents	$ 41.9	$ 65.7	$ 153.9	$ 62.5
Accounts receivable, net	317.7	341.6
Inventories	183.0	196.5
Income tax receivable	0.0	0.0
Prepaid expenses and other current assets	64.8	63.9
Total Current Assets	607.4	667.7
Property, plant and equipment, net	435.1	422.2
Goodwill	733.1	722.5	709.4
Other intangible assets, net	667.4	678.7
Deferred income taxes	23.6	22.5
Other non-current assets	227.4	185.2
Net investment in subsidiaries	0.0	0.0
Due from affiliates	0.0	0.0
Total Assets	2,694.0	2,698.8
Current Liabilities:
Accounts payable	241.2	235.0
Accrued expenses and other current liabilities	234.2	250.0
Income taxes payable	29.1	5.8
Current portion of long-term debt	72.4	70.3
Total Current Liabilities	576.9	561.1
Long-term debt, net	1,680.7	1,817.8
Deferred income taxes	114.3	174.6
Other non-current liabilities	207.4	179.6
Due to affiliates	0.0	0.0
Total Liabilities	2,579.3	2,733.1
Redeemable non-controlling interest	2.2	7.6
Total stockholders' equity (deficit), net of non-controlling interests in subsidiaries	112.5	(44.9)
Non-controlling interest in subsidiaries	0.0	3.0
Total Stockholders' Equity (Deficit)	112.5	(41.9)	267.8	180.6
Total Liabilities, Redeemable Non-Controlling Interest and Stockholders' Equity (Deficit)	2,694.0	2,698.8
Reportable Legal Entities \| Tempur Sealy International, Inc. (Ultimate Parent)
Current Assets:
Cash and cash equivalents	0.1	0.0	0.0	0.4
Accounts receivable, net	0.0	0.0
Inventories	0.0	0.0
Income tax receivable	260.2	234.2
Prepaid expenses and other current assets	0.8	0.0
Total Current Assets	261.1	234.2
Property, plant and equipment, net	0.0	0.0
Goodwill	0.0	0.0
Other intangible assets, net	0.0	0.0
Deferred income taxes	11.8	20.6
Other non-current assets	0.0	0.0
Net investment in subsidiaries	2,381.0	2,171.3
Due from affiliates	87.2	168.4
Total Assets	2,741.1	2,594.5
Current Liabilities:
Accounts payable	0.0	0.1
Accrued expenses and other current liabilities	7.6	6.8
Income taxes payable	0.0	0.0
Current portion of long-term debt	0.0	0.0
Total Current Liabilities	7.6	6.9
Long-term debt, net	1,041.6	1,040.4
Deferred income taxes	0.0	0.0
Other non-current liabilities	0.0	0.0
Due to affiliates	1,577.2	1,581.5
Total Liabilities	2,626.4	2,628.8
Redeemable non-controlling interest	2.2	7.6
Total stockholders' equity (deficit), net of non-controlling interests in subsidiaries		(44.9)
Non-controlling interest in subsidiaries		3.0
Total Stockholders' Equity (Deficit)	112.5	(41.9)
Total Liabilities, Redeemable Non-Controlling Interest and Stockholders' Equity (Deficit)	2,741.1	2,594.5
Reportable Legal Entities \| Combined Guarantor Subsidiaries
Current Assets:
Cash and cash equivalents	12.3	7.9	119.7	23.4
Accounts receivable, net	5.1	197.7
Inventories	103.4	117.1
Income tax receivable	0.0	0.0
Prepaid expenses and other current assets	50.6	48.9
Total Current Assets	171.4	371.6
Property, plant and equipment, net	360.4	346.9
Goodwill	507.6	500.2
Other intangible assets, net	577.5	589.8
Deferred income taxes	0.0	0.0
Other non-current assets	47.2	41.7
Net investment in subsidiaries	127.7	48.1
Due from affiliates	1,975.9	1,868.1
Total Assets	3,767.7	3,766.4
Current Liabilities:
Accounts payable	174.6	157.0
Accrued expenses and other current liabilities	144.2	162.3
Income taxes payable	279.3	235.9
Current portion of long-term debt	35.7	34.4
Total Current Liabilities	633.8	589.6
Long-term debt, net	589.4	776.5
Deferred income taxes	107.8	174.9
Other non-current liabilities	55.2	53.6
Due to affiliates	0.5	0.5
Total Liabilities	1,386.7	1,595.1
Redeemable non-controlling interest	0.0	0.0
Total stockholders' equity (deficit), net of non-controlling interests in subsidiaries		2,171.3
Non-controlling interest in subsidiaries		0.0
Total Stockholders' Equity (Deficit)	2,381.0	2,171.3
Total Liabilities, Redeemable Non-Controlling Interest and Stockholders' Equity (Deficit)	3,767.7	3,766.4
Reportable Legal Entities \| Combined Non-Guarantor Subsidiaries
Current Assets:
Cash and cash equivalents	29.5	57.8	34.2	38.7
Accounts receivable, net	322.2	143.9
Inventories	79.6	79.4
Income tax receivable	0.0	0.0
Prepaid expenses and other current assets	13.4	15.0
Total Current Assets	444.7	296.1
Property, plant and equipment, net	74.7	75.3
Goodwill	225.5	222.3
Other intangible assets, net	89.9	88.9
Deferred income taxes	23.6	22.5
Other non-current assets	180.2	143.5
Net investment in subsidiaries	0.0	0.0
Due from affiliates	15.6	14.4
Total Assets	1,054.2	863.0
Current Liabilities:
Accounts payable	76.2	77.9
Accrued expenses and other current liabilities	82.4	80.9
Income taxes payable	10.0	4.1
Current portion of long-term debt	36.7	35.9
Total Current Liabilities	205.3	198.8
Long-term debt, net	49.7	0.9
Deferred income taxes	18.3	20.3
Other non-current liabilities	152.2	126.0
Due to affiliates	501.0	468.9
Total Liabilities	926.5	814.9
Redeemable non-controlling interest	2.2	7.6
Total stockholders' equity (deficit), net of non-controlling interests in subsidiaries		37.5
Non-controlling interest in subsidiaries		3.0
Total Stockholders' Equity (Deficit)	125.5	40.5
Total Liabilities, Redeemable Non-Controlling Interest and Stockholders' Equity (Deficit)	1,054.2	863.0
Eliminations
Current Assets:
Cash and cash equivalents	0.0	0.0	$ 0.0	$ 0.0
Accounts receivable, net	(9.6)	0.0
Inventories	0.0	0.0
Income tax receivable	(260.2)	(234.2)
Prepaid expenses and other current assets	0.0	0.0
Total Current Assets	(269.8)	(234.2)
Property, plant and equipment, net	0.0	0.0
Goodwill	0.0	0.0
Other intangible assets, net	0.0	0.0
Deferred income taxes	(11.8)	(20.6)
Other non-current assets	0.0	0.0
Net investment in subsidiaries	(2,508.7)	(2,219.4)
Due from affiliates	(2,078.7)	(2,050.9)
Total Assets	(4,869.0)	(4,525.1)
Current Liabilities:
Accounts payable	(9.6)	0.0
Accrued expenses and other current liabilities	0.0	0.0
Income taxes payable	(260.2)	(234.2)
Current portion of long-term debt	0.0	0.0
Total Current Liabilities	(269.8)	(234.2)
Long-term debt, net	0.0	0.0
Deferred income taxes	(11.8)	(20.6)
Other non-current liabilities	0.0	0.0
Due to affiliates	(2,078.7)	(2,050.9)
Total Liabilities	(2,360.3)	(2,305.7)
Redeemable non-controlling interest	(2.2)	(7.6)
Total stockholders' equity (deficit), net of non-controlling interests in subsidiaries		(2,208.8)
Non-controlling interest in subsidiaries		(3.0)
Total Stockholders' Equity (Deficit)	(2,506.5)	(2,211.8)
Total Liabilities, Redeemable Non-Controlling Interest and Stockholders' Equity (Deficit)	$ (4,869.0)	$ (4,525.1)

Investment in subsidiaries, which is eliminated upon consolidation.

No definition available.

Name:	tpx_InvestmentInSubsidiariesNoncurrent
Namespace Prefix:	tpx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).