| **Earnings (Loss) Per Share Data (Computations) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions** | 3 Months Ended |
|------------------------------------------------------------------------------------------------------------------------------|----------------|
||
| **Earnings Per Share [Abstract]**                                                                                            |           |   |
| Net income                                                                                                                   | $ 338          | $ 297 |
| **Basic**                                                                                                                    |           |   |
| Weighted average shares outstanding (in shares)                                                                              | 271.6          | 271.3 |
| **Diluted**                                                                                                                  |           |   |
| Weighted average shares outstanding (in shares)                                                                              | 271.6          | 271.3 |
| Diluted effect of stock-based awards under compensation plans (in shares)                                                    | 1.1            | 1.0 |
| Total (in shares)                                                                                                            | 272.7          | 272.3 |
| **Earnings (loss) per share**                                                                                                |           |   |
| Basic earnings (loss) per share (in usd per share)                                                                           | $ 1.24         | $ 1.10 |
| Diluted earnings (loss) per share (in usd per share)                                                                         | $ 1.24         | $ 1.09 |

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| - Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.
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| - Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.
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| - Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.
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