Goodwill and Other Intangibles (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Other Intangibles

Goodwill by Segment

Below is a summary of the changes in the carrying amount of goodwill by segment for the years ended December 31, 2017 and 2016:

	Pharmacy
In millions	Services		Retail/LTC		Total
Balance, December 31, 2015	$	21,685	$	16,421	$	38,106
Acquisitions		—		126		126
Foreign currency translation adjustments		—		17		17
Other (1)		(48)		48		—
Balance, December 31, 2016		21,637		16,612		38,249
Acquisitions		182		203		385
Foreign currency translation adjustments		—		(2)		(2)
Impairments		—		(181)		(181)
Balance, December 31, 2017	$	21,819	$	16,632	$	38,451

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

Summary of the Company's intangible assets

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

	2017						2016
	Gross				Net		Gross				Net
	Carrying		Accumulated		Carrying		Carrying		Accumulated		Carrying
In millions	Amount		Amortization		Amount		Amount		Amortization		Amount
Trademark (indefinitely-lived)	$	6,398	$	—	$	6,398	$	6,398	$	—	$	6,398
Customer contracts and relationships and covenants not to compete		12,341		(5,536)		6,805		11,485		(4,802)		6,683
Favorable leases and other		1,190		(763)		427		1,123		(693)		430
	$	19,929	$	(6,299)	$	13,630	$	19,006	$	(5,495)	$	13,511

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
2018	$	817
2019		771
2020		600
2021		539
2022		494