| Component: (Network and Table) | |
|---|---|
| Network | 2421403 - Disclosure - Guarantees and product warranty (Details 2) (http://www.cat.com/role/GuaranteesAndProductWarrantyDetails2) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0000018230 (http://www.sec.gov/CIK) |
| Commitments and Contingencies Disclosure [Abstract] | Period [Axis] | ||
|---|---|---|---|
2013-01-01 - 2013-12-31 | 2012-01-01 - 2012-12-31 | 2011-01-01 - 2011-12-31 | |
Commitments and Contingencies Disclosure [Abstract] | |||
Product Warranties | |||
Movement in Standard Product Warranty Accrual | |||
Warranty liability, beginning balance | |||
Reduction in liability (payments) | ( | ( | ( |
Increase in liability (new warranties) | |||
Warranty liability, ending balance | 1,477,000,000 | 1,308,000,000 | |