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Statements Of Consolidated Financial Position (Parenthetical) (USD $)
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2011
Preferred Class A [Member]
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Dec. 31, 2010
Preferred Class A [Member]
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Dec. 31, 2011
Preferred Class B [Member]
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Dec. 31, 2010
Preferred Class B [Member]
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| Preferred stock, no par value | $ 0 | $ 0 | ||||
| Preferred stock - no par value | 3,000,000 | 3,000,000 | 4,000,000 | 4,000,000 | ||
| Preferred stock, shares unissued | 3,000,000 | 3,000,000 | 4,000,000 | 4,000,000 | ||
| Common shares, par value | $ 0.125 | $ 0.125 | ||||
| Common shares, authorized | 400,000,000 | 224,000,000 | ||||
| Common shares, issued | 149,195,469 | 138,845,469 | ||||
| Common shares, outstanding | 142,021,718 | 135,456,999 | ||||
| Common shares in treasury | 7,173,751 | 3,388,470 |
| X | ||||||||||
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- Definition
Face amount or stated value of common stock per share; generally not indicative of the fair market value per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total number of shares of common stock held by shareholders. May be all or portion of the number of common shares authorized. These shares represent the ownership interest of the common shareholders. Shares outstanding equals shares issued minus shares held in treasury and other adjustments, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Issuance value per share of no-par value, nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer); generally not indicative of the fair market value per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The number of nonredeemable preferred stock (shares) (or preferred stock redeemable solely at the option of the issuer) allocated to investors to buy shares of a new issue of preferred stock before they are offered to the public. When stock is sold on a subscription basis, the issuer does not initially receive the total proceeds. In general, the issuer does not issue the shares to the investor until it receives the entire proceeds. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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