| Component: (Network and Table) | |
|---|---|
| Network | 173 - Disclosure - Items Accounting for Differences between Income Taxes Computed at Federal Statutory Rate and Provision Recorded for Income Taxes (Detail) (http://www.amazon.com/taxonomy/role/DisclosureItemsAccountingForDifferencesBetweenIncomeTaxesComputedAtFederalStatutoryRateAndProvisionRecordedForIncomeTaxes) |
| Table | Reconciliation of Statutory Federal Tax Rate [Table] |
| Reporting Entity [Axis] | 0001018724 (http://www.sec.gov/CIK) |
| Legal Entity [Axis] | Entity [Domain] |
| Reconciliation of Statutory Federal Tax Rate [Line Items] | Period [Axis] | ||
|---|---|---|---|
2012-01-01 - 2012-12-31 | 2011-01-01 - 2011-12-31 | 2010-01-01 - 2010-12-31 | |
Federal statutory rate | .350 | .350 | .350 |
Effect of: | |||
Impact of foreign tax differential | .315 | (.084) | (.127) |
State taxes, net of federal benefits | .002 | .015 | .015 |
Tax credits | (.044) | (.032) | (.011) |
Nondeductible stock-based compensation | .111 | .041 | .016 |
Other, net | .052 | .022 | (.008) |
Total | .786 | .312 | .235 |