| **CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) (USD $)In Thousands** | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Loss [Member] | Treasury Stock [Member] | Noncontrolling Interest [Member] | Total       |
|-----------------------------------------------------------------------|-----------------------|-------------------------------------|----------------------------|-----------------------------------------------|-------------------------|----------------------------------|-------------|
| Balance at Dec. 31, 2010                                              | $ 256,997             | $ 5,525,471                         | $ 77,107                   | $ (229,549)                                   | $ (433,286)             | $ 13,003                         | $ 5,209,743 |
| Balance (in shares) at Dec. 31, 2010                                  | 1,027,986             |                                |                       |                                          | (34,131)                |                             |        |
| Stock plans                                                           | 0                     | (9,325)                             | 0                          | 0                                             | 18,289                  | 0                                | 8,964       |
| Stock plans (in shares)                                               | 0                     |                                |                       |                                          | 1,282                   |                             |        |
| Dividends on common stock                                             | 0                     | (559,803)                           | 0                          | 0                                             | 0                       | 0                                | (559,803)   |
| Net income                                                            | 0                     | 0                                   | 107,367                    | 0                                             | 0                       | 4,993                            | 112,360     |
| Other comprehensive income (loss), net of tax                         | 0                     | 0                                   | 0                          | 8,324                                         | 0                       | 0                                | 8,324       |
| Distributions                                                         | 0                     | 0                                   | 0                          | 0                                             | 0                       | (3,000)                          | (3,000)     |
| Balance at Sep. 30, 2011                                              | 256,997               | 4,956,343                           | 184,474                    | (221,225)                                     | (414,997)               | 14,996                           | 4,776,588   |
| Balance (in shares) at Sep. 30, 2011                                  | 1,027,986             |                                |                       |                                          | (32,849)                |                             |        |
| Stock plans                                                           | 0                     | 3,624                               | 0                          | 0                                             | (4)                     | 0                                | 3,620       |
| Stock plans (in shares)                                               | 0                     |                                |                       |                                          |                    |                             | (9)         |
| Dividends on common stock                                             | 0                     | (186,584)                           | 0                          | 0                                             | 0                       | 0                                | (186,584)   |
| Net income                                                            | 0                     | 0                                   | 42,247                     | 0                                             | 0                       | 3,001                            | 45,248      |
| Other comprehensive income (loss), net of tax                         | 0                     | 0                                   | 0                          | (165,738)                                     | 0                       | 0                                | (165,738)   |
| Distributions                                                         | 0                     | 0                                   | 0                          | 0                                             | 0                       | (4,000)                          | (4,000)     |
| Balance at Dec. 31, 2011                                              | 256,997               | 4,773,383                           | 226,721                    | (386,963)                                     | (415,001)               | 13,997                           | 4,469,134   |
| Balance (in shares) at Dec. 31, 2011                                  | 1,027,986             |                                |                       |                                          | (32,858)                |                             |        |
| Stock plans                                                           | 0                     | (37,867)                            | 0                          | 0                                             | 46,423                  | 0                                | 8,556       |
| Stock plans (in shares)                                               | 0                     |                                |                       |                                          | 3,325                   |                             |        |
| Dividends on common stock                                             | 0                     | 0                                   | (299,547)                  | 0                                             | 0                       | 0                                | (299,547)   |
| Net income                                                            | 0                     | 0                                   | 111,757                    | 0                                             | 0                       | 12,358                           | 124,115     |
| Other comprehensive income (loss), net of tax                         | 0                     | 0                                   | 0                          | 12,142                                        | 0                       | 0                                | 12,142      |
| Distributions                                                         | 0                     | 0                                   | 0                          | 0                                             | 0                       | (11,000)                         | (11,000)    |
| Balance at Sep. 30, 2012                                              | $ 256,997             | $ 4,735,516                         | $ 38,931                   | $ (374,821)                                   | $ (368,578)             | $ 15,355                         | $ 4,303,400 |
| Balance (in shares) at Sep. 30, 2012                                  | 1,027,986             |                                |                       |                                          | (29,533)                |                             |        |

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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Equity impact of aggregate cash, stock, and paid-in-kind dividends declared for common shareholders during the period.
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items, and noncontrolling interest.
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.
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| - Definition
Net of tax amount of other comprehensive income (loss) attributable to both parent entity and noncontrolling interest.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Value of stock (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of stock value of such awards forfeited. Stock issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.
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