Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2011

Intangible Assets [Abstract]

Intangible Assets

Intangible assets at December 31, 2011 and 2010 were (in millions):

	2011						2010
	Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Intangible assets subject to    impairment tests:
Goodwill	$	9,026.6	$	570.3	$	8,456.3	$	8,386.7	$	577.6	$	7,809.1
Other identifiable intangible    assets subject to amortization:
Purchased and internally developed software	$	270.0	$	210.3	$	59.7	$	260.5	$	205.3	$	55.2
Customer related and other	615.3		206.6		408.7		372.5		149.5		223.0
	$	885.3	$	416.9	$	468.4	$	633.0	$	354.8	$	278.2

Changes in Goodwill

Changes in goodwill for the years ended December 31, 2011 and 2010 were (in millions):

	2011			2010
Balance January 1	$	7,809.1		$	7,641.2
Acquisitions	728.3			275.3
Dispositions	(12.1		)	(8.9		)
Foreign currency translation	(69.0		)	(98.5		)
Balance December 31	$	8,456.3		$	7,809.1