Goodwill (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill.

Goodwill by Segment

	Pharmacy
In millions	Services		Retail/LTC		Total
Balance, December 31, 2017	$	21,819	$	16,632	$	38,451
Acquisitions		26		36		62
Divestiture of RxCrossroads subsidiary		—		(398)		(398)
Balance, March 31, 2018	$	21,845	$	16,270	$	38,115