Leases (Tables)

12 Months Ended

Dec. 31, 2011

Leases [Abstract]

Rent Expense [Table Text Block]

Rent expense for the three years ended December 31, 2011, was (in millions)

	2011		2010		2009
Office rent	$	381.6	$	374.4	$	396.0
Less third party sublease rent	12.8		16.3		18.9
Net office rent	368.8		358.1		377.1
Equipment rent	42.7		46.4		65.6
	$	411.5	$	404.5	$	442.7

Future Minimum Lease Payments Under Non-Cancelable Operating and Capital Leases [Table Text Block]

Future minimum lease payments under non-cancelable operating and capital leases, reduced by third party sublease rent receivable from existing non-cancelable subleases, are (in millions):

	Operating Leases						Capital Leases
	Gross Rent		Less Sublease Rent		Net Rent		Minimum Lease Payments
2012	$	364.9	$	6.9	$	358.0	$	24.9
2013	298.4		4.8		293.6		16.3
2014	228.3		4.0		224.3		8.5
2015	176.4		3.2		173.2		3.7
2016	129.7		1.0		128.7		2.2
Thereafter	385.4		1.2		384.2		2.2
	$	1,583.1	$	21.1	$	1,562.0
Total minimum lease payments							57.8
Less interest component							1.9
Present value of minimum lease payments							$	55.9