Goodwill and Other Intangibles (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill by Segment

Below is a summary of the changes in the carrying amount of goodwill by segment for the years ended December 31, 2014 and 2013:

In millions	Pharmacy Services			Retail Pharmacy			Total
Balance, December 31, 2012	$	19,646		$	6,749		$	26,395
Acquisitions	13			160			173
Foreign currency translation adjustments	—			(25		)	(25		)
Other (1)	(1		)	—			(1		)
Balance, December 31, 2013	19,658			6,884			26,542
Acquisitions	1,578			38			1,616
Foreign currency translation adjustments	—			(14		)	(14		)
Other (1)	(2		)	—			(2		)
Balance, December 31, 2014	$	21,234		$	6,908		$	28,142

(1) “Other” represents immaterial purchase accounting adjustments for acquisitions.

Anticipated Annual Amortization for Intangible Assets

The anticipated annual amortization expense for these intangible assets for the next five years is as follows:

In millions
2015	$	486
2016	$	456
2017	$	433
2018	$	415
2019	$	383

Summary of the Company's intangible assets

The following table is a summary of the Company’s intangible assets as of December 31:

	2014							2013
In millions	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Trademark (indefinitely-lived)	$	6,398	$	—		$	6,398	$	6,398	$	—		$	6,398
Customer contracts and relationships     and covenants not to compete	6,521		(3,549		)	2,972		5,840		(3,083		)	2,757
Favorable leases and other	880		(476		)	404		800		(426		)	374
	$	13,799	$	(4,025	)	$	9,774	$	13,038	$	(3,509	)	$	9,529