Discontinued Operations (Details) - USD ($) $ in Millions	1 Months Ended	6 Months Ended	12 Months Ended
	Oct. 31, 2015	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Jun. 14, 2016
Assets [Abstract]
Cash and cash equivalents		$ 4.0	$ 4.0	$ 10.1	$ 12.1
Customer Communications | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net gain on business disposition			341.5	0.0	0.0
Assets [Abstract]
Cash and cash equivalents		4.0	4.0	10.1
Accounts receivable		38.9	38.9	140.1
Investments		0.0	0.0	0.3
Unconsolidated affiliates		0.2	0.2	0.3
Properties, net		9.9	9.9	64.6
Intangible assets, net		11.2	11.2	20.6
Goodwill		0.0	0.0	24.8
Other assets		8.4	8.4	36.7
Total assets held for sale		72.6	72.6	297.5
Liabilities [Abstract]
Current portion of debt		0.4	0.4	0.0
Accounts payable		13.2	13.2	33.7
Accrued compensation and benefits		3.8	3.8	26.7
Deferred revenues and gains		0.8	0.8	5.5
Long-term debt		1.7	1.7	0.0
Income tax payable		1.0	1.0	0.0
Other liabilities		9.2	9.2	94.0
Total liabilities held for sale		30.1	30.1	159.9
North America | Customer Communications
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash consideration						$ 410.7
Disposal Group Including Discontinued Operations, Amount of Settlement		0.7	0.7
Net gain on business disposition			341.5
Sale Leaseback Transaction, Deferred Gain, Gross	$ 39.9
Sale Leaseback Transaction, Net Proceeds, Investing Activities	$ 129.0
Sale Leaseback Transaction, Amortization Expense			1.5	0.6
Intersegment revenues, discontinued operation after disposal			19.3	13.8	15.9
Intersegment expenses, discontinued operation after disposal			$ 34.8	$ 19.3	$ 36.8
Information Technology and Operations Processing | North America | Customer Communications
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operation, Amount of Continuing Cash Flows after Disposal		8.8
Print Services | North America | Customer Communications
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operation, Amount of Continuing Cash Flows after Disposal		$ 19.9