Debt and Financing Activities (PSS World Medical Debt Acquired) (Narrative) (Details) (PSS World Medical [Member], USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended
Feb. 28, 2013 Senior Notes Due 2022 [Member]	Feb. 28, 2013 Senior Convertible Notes Due 2014 [Member]	Mar. 31, 2013 Senior Notes Due 2022 And Senior Convertible Notes Due 2014 [Member]
Debt Instrument [Line Items]
Interest rate on debt	6.375%	3.125%
Debt Instrument, Maturity Date	Mar. 01, 2022	Aug. 01, 2014
Payoff of PSS World Medical Debt			$ 643

Contractual interest rate for funds borrowed, under the debt agreement.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

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-Section S99

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

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The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

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

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-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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