Supplemental Share Information - shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
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| Supplemental Share Information Treasury Stock RollForward | |||
| Treasury Stock, Shares, Beginning Balance | 334,702,932 | 308,898,462 | 280,736,817 |
| Reacquired stock | 22,602,748 | 34,072,584 | 40,664,061 |
| Issuances pursuant to stock options and benefit plans | (9,998,902) | (8,268,114) | (12,502,416) |
| Treasury Stock, Shares, Ending Balance | 347,306,778 | 334,702,932 | 308,898,462 |
| X | ||||||||||
- Definition Rollforward of Treasury Shares for the periods presented in the report. No definition available.
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| X | ||||||||||
- Definition 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Number of previously issued common shares repurchased by the issuing entity and held in treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Number of shares that have been repurchased during the period and are being held in treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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