| Standard label: | Gain (Loss) on Fair Value Hedges, Caption |
| Name: | us-gaap:GainLossOnFairValueHedgesCaption |
| Documentation: | Identification of the line item(s) where the net gain (loss) on fair value hedges is reported in the statement of income or other statement of financial performance. |
| Object type: | cm:Concept |
| Data type: | Text/String (xbrli:stringItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:GainLossOnFairValueHedgesCaption |
| Label | Role | Language |
| Gain (Loss) on Fair Value Hedges, Caption | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 235 10 S99 1 (SX 210.4-08.(n)(7)) | http://fasb.org/us-gaap/role/ref/legacyRef | 235 |
| FASB Accounting Standards Codification 815 10 50 4A (b)(1) | http://fasb.org/us-gaap/role/ref/legacyRef | 815 |