Goodwill (Tables)

6 Months Ended

Jun. 30, 2017

Goodwill.

Goodwill by Segment

	Pharmacy
In millions	Services		Retail/LTC		Total
Balance, December 31, 2016	$	21,637	$	16,612	$	38,249
Acquisitions		—		18		18
Foreign currency translation adjustments		—		(2)		(2)
Impairment		—		(135)		(135)
Balance, June 30, 2017	$	21,637	$	16,493	$	38,130