| **Segment Information (Tables)**                            | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
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| **Segment Reporting [Abstract]**                            |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| Segment information                                         | Supplemental segment data and reconciliations to consolidated external reporting for the years ended December 31 was as follows:(Millions of dollars) 2012Revenues SegmentProfit InterestExpense Depreciationon equipmentleased toothers Provisionforcreditlosses SegmentAssets atDecember 31,2012 CapitalexpendituresNorth America$938 $263 $270 $274 $15 $11,305 $565Europe and CPF467 84 134 76 65 7,785 243Asia/Pacific399 132 155 23 24 6,151 133Latin America389 111 141 64 26 4,973 172Mining451 60 90 250 27 3,212 545Total Segments2,644 650 790 687 157 33,426 1,658Unallocated73 (93) 61 1 1 1,529 —Timing(24) (6) — — 3 17 2Methodology— 40 (50) — — (61) —Inter-segment Eliminations— — — — — (169) —Total$2,693 $591 $801 $688 $161 $34,742 $1,660               2011Revenues SegmentProfit InterestExpense Depreciationon equipmentleased toothers Provisionforcreditlosses SegmentAssets atDecember 31,2011 CapitalexpendituresNorth America$959 $222 $303 $276 $34 $10,867 $530Europe and CPF506 37 166 89 105 6,922 118Asia/Pacific333 112 129 16 28 4,605 42Latin America350 111 127 47 17 3,995 175Mining446 72 90 260 3 2,635 321Total Segments2,594 554 815 688 187 29,024 1,186Unallocated73 (92) 69 2 2 1,253 3Timing(22) 6 — — (13) 67 1Methodology— 36 (57) — — 15 —Inter-segment Eliminations— — — — — (247) —Total$2,645 $504 $827 $690 $176 $30,112 $1,190               2010Revenues SegmentProfit InterestExpense Depreciationon equipmentleased toothers Provisionforcreditlosses SegmentAssets atDecember 31,2010 CapitalexpendituresNorth America$982 $37 $369 $302 $120 $10,897 $512Europe and CPF502 64 201 92 50 7,219 120Asia/Pacific441 96 136 133 25 4,360 21Latin America297 102 119 29 9 3,432 109Mining252 45 64 131 (3) 1,518 156Total Segments2,474 344 889 687 201 27,426 918Unallocated103 (47) 76 3 — 1,415 40Timing(25) (17) — — 12 113 1Methodology— 49 (48) — — (21) —Inter-segment Eliminations— — — — — (181) —Total$2,552 $329 $917 $690 $213 $28,752 $959               |
| Revenue and Equipment, Inside and outside the United States | Inside and outside the United States: (Millions of dollars)        2012 2011 2010Revenues      Inside U.S. $1,142 $1,112 $1,138Inside Canada 347 374 362Inside Australia 301 259 222All other 903 900 830Total $2,693 $2,645 $2,552       Equipment on Operating Leases and Non-Leased  Equipment (included in Other Assets), Net 2012 2011 2010Inside U.S. $1,218 $986 $1,044Inside Canada 761 771 818Inside Australia 342 314 343All other 742 592 567Total $3,063 $2,663 $2,772                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |

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| - Definition
Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material.  An entity may also provide subtotals of geographic information about groups of countries.
+ References
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| - Definition
Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.
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