Productivity and Cost Savings Initiatives Expenses (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Jun. 30, 2013
Schedule of Productivity and Cost-Savings Initiatives by Reportable Segment [Line Items]
Productivity and Cost-Savings Initiatives, Costs Incurred to Date	$ 13.5	$ 4.2	$ 17.7
Consumer-to-Consumer [Member]
Schedule of Productivity and Cost-Savings Initiatives by Reportable Segment [Line Items]
Productivity and Cost-Savings Initiatives, Costs Incurred to Date	11.7	3.2	14.9
Consumer-to-Business [Member]
Schedule of Productivity and Cost-Savings Initiatives by Reportable Segment [Line Items]
Productivity and Cost-Savings Initiatives, Costs Incurred to Date	1.4	0.5	1.9
Business Solutions [Member]
Schedule of Productivity and Cost-Savings Initiatives by Reportable Segment [Line Items]
Productivity and Cost-Savings Initiatives, Costs Incurred to Date	0.1	0	0.1
Other [Member]
Schedule of Productivity and Cost-Savings Initiatives by Reportable Segment [Line Items]
Productivity and Cost-Savings Initiatives, Costs Incurred to Date	$ 0.3	$ 0.5	$ 0.8