Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

Name:	us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Business Combinations (Details) € in Millions, £ in Millions, $ in Millions	1 Months Ended						6 Months Ended
	Sep. 30, 2015 EUR (€)	Jul. 31, 2015 hospital_pharmacy	Jul. 31, 2015 GBP (£)	Jul. 31, 2015 USD ($)	Jul. 31, 2015 pharmacy	Jul. 31, 2015 in_store_pharmacy	Sep. 30, 2015 USD ($)
UDG \| Ireland
Business Acquisition [Line Items]
Agreement to acquire pharmaceutical distribution business in cash	€ 408						$ 457
Currency exchange ratio, usd/euro							1.12
Sainsbury \| U.K.
Business Acquisition [Line Items]
Agreement to acquire pharmaceutical distribution business in cash			£ 125	$ 190
Currency exchange ratio, usd/gbp							1.52
Number of businesses acquired		4			281	277