Restructuring and Related Expenses (Details Numeric) (USD $) In Millions	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2011	Mar. 31, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Restructuring and Related Expenses (Numeric) [Abstract]
Restructuring and related expenses	$ 8.9		$ 34.5	$ 32.9	$ 34.5
Restructuring Plan 2010 [Member]
Restructuring and Related Expenses (Numeric) [Abstract]
Restructuring Costs				105.0
Expenses	8.9	24.0				59.5
Restructuring and related expenses	8.9		34.5	32.9	34.5
Restructuring Plan 2010 [Member] | Fixed Asset Write-Offs and Accelerated Depreciation [Member]
Restructuring and Related Expenses (Numeric) [Abstract]
Restructuring Costs				2.2
Restructuring and related expenses				1.3
Restructuring Plan 2010 [Member] | Consumer-to-consumer [Member]
Restructuring and Related Expenses (Numeric) [Abstract]
Restructuring Costs				78.4
Expenses	6.8	19.1				44.7
Restructuring Plan 2010 [Member] | Global business payments [Member]
Restructuring and Related Expenses (Numeric) [Abstract]
Restructuring Costs				22.7
Expenses	1.8	3.5				12.8
Restructuring Plan 2010 [Member] | Other [Member]
Restructuring and Related Expenses (Numeric) [Abstract]
Restructuring Costs				3.9
Expenses	0.3	1.4				2.0
Consumer-to-consumer [Member]
Restructuring and Related Expenses (Numeric) [Abstract]
Expenses			26.2		26.2
Global business payments [Member]
Restructuring and Related Expenses (Numeric) [Abstract]
Expenses			6.9		6.9
Other [Member]
Restructuring and Related Expenses (Numeric) [Abstract]
Expenses			$ 1.4		$ 1.4