Supplemental Share Information	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Supplemental Share Information Treasury Stock RollForward
Treasury Stock, Shares, Beginning Balance	280,736,817us-gaap_TreasuryStockShares	256,941,406us-gaap_TreasuryStockShares	249,063,015us-gaap_TreasuryStockShares
Reacquired stock	40,664,061us-gaap_TreasuryStockSharesAcquired	45,445,610us-gaap_TreasuryStockSharesAcquired	25,054,207us-gaap_TreasuryStockSharesAcquired
Issuances pursuant to stock options and benefit plans	(12,502,416)	(21,650,199)	(17,175,816)
Treasury Stock, Shares, Ending Balance	308,898,462us-gaap_TreasuryStockShares	280,736,817us-gaap_TreasuryStockShares	256,941,406us-gaap_TreasuryStockShares

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Number of treasury shares (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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- Definition

Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.28,29)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

+ Details

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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

+ Details

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