Divestitures and Planned Divestitures (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
		Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Revenue			$ 56.5	$ 83.4	$ 280.2
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax			(7.7)	2.2	0.5
Discontinued Operation, Tax Effect of Income (Loss) from Discontinued Operation During Phase-out Period			(2.8)	0.8	1.1
Income (Loss) from Operations of Discontinued Operations, Net of Tax			(4.9)	1.4	(0.6)
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax	[1]		95.6	3.4	58.9
Income from discontinued operations, net of tax			90.7	4.8	58.3
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax			154.2	2.2	87.4
Discontinued Operation, Tax Effect of Income (Loss) from Disposal of Discontinued Operation			58.6	(1.2)	28.5
Impairment of Goodwill, Intangibles And Other Long-Lived Assets Of Discontinued Operations, Pretax					22.7
Revenues			$ 5,915.7	$ 5,727.0	$ 5,607.0
Decor [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Decor % of net sales to Total Company net sales			5.10%	5.50%	5.70%
Disposal Group, Including Discontinued Operation, Inventory			$ 35.3
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets			2.0
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment			18.2
Goodwill			19.2
Disposal Group, Including Discontinued Operation, Intangible Assets			23.7
Disposal Group, Including Discontinued Operation, Assets			98.4
Disposal Group, Including Discontinued Operation, Accounts Payable			34.8
Disposal Group, Including Discontinued Operation, Other Liabilities			8.5
Disposal Group, Including Discontinued Operation, Liabilities			43.3
Endicia [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transaction Costs Incurred Related to Sale of Discontinued Operations			5.2
Cash divested in sale of business			5.6
Proceeds from Divestiture of Businesses, Net of Cash Divested			208.7
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax			154.2
Goodwill			50.0
Disposal Group, Including Discontinued Operation, Assets			60.1
Hardware [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transaction Costs Incurred Related to Sale of Discontinued Operations					$ 3.9
Disposal Group, Including Discontinued Operations, Cash of Disposal Group					2.6
Disposal Group, Including Discontinued Operations, Net Assets of Disposal Group					72.8
Cash consideration on sale of business		$ 2.5			182.9
Goodwill, Written off Related to Sale of Business Unit					21.2
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax					110.1
Discontinued Operation, Nature of Adjustment to Prior Period Gain (Loss) on Disposal				4.8
Accounts Receivable Divested Business					27.0
Culinary [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment of Goodwill, Intangibles And Other Long-Lived Assets Of Discontinued Operations, Pretax				$ 2.6
TeachGroup [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment of Goodwill, Intangibles And Other Long-Lived Assets Of Discontinued Operations, Pretax					$ 22.7
Medical Cart Business net sales [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues			$ 26.5
Medical Cart Business percentage of net sales to Total Company			0.40%	1.20%	1.30%

[1] 2015 includes pretax gains of $154.2 million (related tax expense of $58.6 million) relating to the sale of the Endicia business. 2014 includes pretax gains of $2.2 million (related tax benefit of $1.2 million) relating to the recognition of $4.8 million of previously deferred gains on the sale of the international Hardware businesses, offset by $2.6 million of impairments relating to the Culinary businesses. 2013 includes pretax gains of $87.4 million (related tax expense of $28.5 million) relating to net gains from sale; impairments and write-offs of goodwill, intangibles and other long-lived assets; and write-downs and write-offs of net working capital.