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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 |

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- Definition 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. + References 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 + Details
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