| **Accumulated Other Comprehensive Income/(Loss)**                        | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
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| **Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| Accumulated Other Comprehensive Income/(Loss)                            | Accumulated Other Comprehensive Income/(Loss) Comprehensive income/(loss) and its components are presented in the Consolidated Statements of Comprehensive Income.  Accumulated other comprehensive income/(loss), net of tax, included in the Consolidated Statements of Changes in Stockholder's Equity, consisted of the following as of:(Millions of dollars)    September 30, 2012 September 30, 2011Foreign currency translation$151 $186Derivative financial instruments(8) (7)Total Accumulated other comprehensive income/(loss)$143 $179     |

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| - Definition
The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income.
+ References
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