v3.26.1
Document and Entity Information
12 Months Ended
Dec. 31, 2025
Document Information [Line Items]  
Document Type 11-K
Amendment Flag false
Entity Registrant Name BERKSHIRE HATHAWAY INC.
Entity Central Index Key 0001067983
EBP 002  
Document Information [Line Items]  
Document Type 11-K
Amendment Flag false
Document Period End Date Dec. 31, 2025
Document Fiscal Year Focus 2025
Entity Registrant Name BERKSHIRE HATHAWAY INC.
Entity Central Index Key 0001067983
Document Fiscal Period Focus FY