| **Accumulated Other Comprehensive Income/(Loss)**                        | 6 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.  Changes in Accumulated other comprehensive income/(loss), net of tax, included in the Consolidated Statements of Changes in Stockholder's Equity, consisted of the following:(Millions of dollars)Foreign currency translation Derivative financial instruments Available-for-sale securities Total        Three Months Ended June 30, 2015       Balance at March 31, 2015$(760) $(3) $— $(763)Other comprehensive income/(loss) before reclassifications134 — — 134Amounts reclassified from accumulated other comprehensive (income)/loss— 1 — 1Other comprehensive income/(loss)134 1 — 135Balance at June 30, 2015$(626) $(2) $— $(628)        Three Months Ended June 30, 2016       Balance at March 31, 2016$(725) $1 $— $(724)Other comprehensive income/(loss) before reclassifications(65) (4) (2) (71)Amounts reclassified from accumulated other comprehensive (income)/loss— 4 — 4Other comprehensive income/(loss)(65) — (2) (67)Balance at June 30, 2016$(790) $1 $(2) $(791)        Six Months Ended June 30, 2015       Balance at December 31, 2014$(359) $(5) $— $(364)Other comprehensive income/(loss) before reclassifications(267) 1 — (266)Amounts reclassified from accumulated other comprehensive (income)/loss— 2 — 2Other comprehensive income/(loss)(267) 3 — (264)Balance at June 30, 2015$(626) $(2) $— $(628)        Six Months Ended June 30, 2016       Balance at December 31, 2015$(897) $— $— $(897)Other comprehensive income/(loss) before reclassifications107 (5) (2) 100Amounts reclassified from accumulated other comprehensive (income)/loss— 6 — 6Other comprehensive income/(loss)107 1 (2) 106Balance at June 30, 2016$(790) $1 $(2) $(791)        The effect of the reclassifications out of Accumulated other comprehensive income/(loss) on the Consolidated Statements of Profit was as follows:(Millions of dollars)  Three Months EndedJune 30, Six Months EndedJune 30, Classification of income (expense) 2016 2015 2016 2015Cross currency contractsOther income (expense) $(6) $— $(6) $—Interest rate contractsInterest expense (1) (2) (3) (3)Reclassifications before tax  (7) (2) (9) (3)Tax (provision) benefit  3 1 3 1Total reclassifications from Accumulated other comprehensive income/(loss) $(4) $(1) $(6) $(2)           |

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No definition available.
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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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