Goodwill and other intangible assets (Tables)

9 Months Ended

Sep. 30, 2011

Goodwill and other intangible assets [Abstract]

Summary of goodwill and other intangible assets

	September 30, 2011							December 31, 2010
	Gross					Net		Gross					Net
	Carrying		Accumulated			Carrying		Carrying		Accumulated			Carrying
(in millions)	Amount		Amortization			Amount		Amount		Amortization			Amount
Goodwill
PBM(1)	$	5,512.3	$	(107.4	)	$	5,404.9	$	5,513.1	$	(107.4	)	$	5,405.7
EM(1)		80.5		—			80.5		80.5		—			80.5
	$	5,592.8	$	(107.4	)	$	5,485.4	$	5,593.6	$	(107.4	)	$	5,486.2
Other intangible assets
PBM
Customer contracts	$	2,018.4	$	(457.5	)	$	1,560.9	$	2,018.7	$	(346.4	)	$	1,672.3
Other (2)		96.7		(23.9	)		72.8		20.8		(5.0	)		15.8
		2,115.1		(481.4	)		1,633.7		2,039.5		(351.4	)		1,688.1
EM
Customer relationships		68.4		(37.0	)		31.4		68.4		(32.2	)		36.2
Other		0.7		—			0.7		0.7		—			0.7
		69.1		(37.0	)		32.1		69.1		(32.2	)		36.9
Total other intangible assets	$	2,184.2	$	(518.4	)	$	1,665.8	$	2,108.6	$	(383.6	)	$	1,725.0

(1)	As discussed in Note 11 — Segment Information, during the third quarter of 2011 we reorganized our FreedomFP line of business from our EM segment into our PBM segment. All amounts at December 31, 2010 have been restated for comparability.
(2)	Changes in other intangible assets are a result of the capitalization of $65.0 million of deferred financing fees related to the bridge facility during the third quarter of 2011 and the capitalization of $10.9 million of deferred financing fees related to the issuance of the 2016 Senior Notes during the second quarter of 2011 (see Note 7 — Financing).

Summary of change in net carrying value of goodwill by business segment

(in millions)	PBM			EM		Total
Balance at December 31, 2010	$	5,405.7		$	80.5	$	5,486.2
Foreign currency translation		(0.8	)		—		(0.8	)
Balance at September 30, 2011	$	5,404.9		$	80.5	$	5,485.4