| Component: (Network and Table) | |
|---|---|
| Network | 1078 - Disclosure - Inventories (Detail) (http://www.berkshirehathaway.com/taxonomy/role/DisclosureInventories) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0001067983 (http://www.sec.gov/CIK) |
| Inventory Disclosure [Abstract] | Period [Axis] | |
|---|---|---|
2016-12-31 | 2015-12-31 | |
Inventory Disclosure [Abstract] | ||
Raw materials | ||
Work in process and other | ||
Finished manufactured goods | ||
Goods acquired for resale | ||
Total inventory | 15,727,000,000 | 11,916,000,000 |