BERKSHIRE HATHAWAY INC

75000 - Document - Document and Entity Information

75010 - Statement - Consolidated Balance Sheets

75020 - Statement - Consolidated Balance Sheets (Parenthetical)

75030 - Statement - Consolidated Statements of Earnings

75040 - Statement - Consolidated Statements of Earnings (Parenthetical)

75050 - Statement - Consolidated Statements of Comprehensive Income

75060 - Statement - Consolidated Statements of Changes in Shareholders' Equity

75070 - Statement - Consolidated Statements of Cash Flows

995410 - Disclosure - Pay vs Performance Disclosure

995445 - Disclosure - Insider Trading Arrangements

995455 - Disclosure - Cybersecurity Risk Management and Strategy Disclosure

995465 - Disclosure - Significant accounting policies and practices

995475 - Disclosure - Significant business acquisitions

995485 - Disclosure - Investments in fixed maturity securities

995495 - Disclosure - Investments in equity securities

995505 - Disclosure - Equity method investments

995515 - Disclosure - Investment gains (losses)

995525 - Disclosure - Loans and finance receivables

995535 - Disclosure - Other receivables

995545 - Disclosure - Inventories

995555 - Disclosure - Property, plant and equipment including equipment held for lease

995565 - Disclosure - Leases

995575 - Disclosure - Goodwill and other intangible assets

995585 - Disclosure - Supplemental cash flow information

995595 - Disclosure - Insurance subsidiaries disclosures

995605 - Disclosure - Unpaid losses and loss adjustment expenses

995615 - Disclosure - Retroactive reinsurance

995625 - Disclosure - Long-duration insurance contracts

995635 - Disclosure - Notes payable and other borrowings

995645 - Disclosure - Income taxes

995655 - Disclosure - Fair value measurements

995665 - Disclosure - Common stock

995675 - Disclosure - Revenues from contracts with customers

995685 - Disclosure - Pension plans

995695 - Disclosure - Accumulated other comprehensive income

995705 - Disclosure - Business segment data

995715 - Disclosure - Contingencies and commitments

995725 - Disclosure - Condensed Financial Information

995735 - Disclosure - Significant accounting policies and practices (Policies)

995765 - Disclosure - Investments in fixed maturity securities (Tables)

995775 - Disclosure - Investments in equity securities (Tables)

995785 - Disclosure - Equity method investments (Tables)

995795 - Disclosure - Investment gains (losses) (Tables)

995805 - Disclosure - Loans and finance receivables (Tables)

995815 - Disclosure - Other receivables (Tables)

995825 - Disclosure - Inventories (Tables)

995835 - Disclosure - Property, plant and equipment including equipment held for lease (Tables)

995845 - Disclosure - Equipment held for lease (Tables)

995855 - Disclosure - Leases (Tables)

995865 - Disclosure - Goodwill and other intangible assets (Tables)

995875 - Disclosure - Supplemental cash flow information (Tables)

995885 - Disclosure - Insurance subsidiary disclosures (Tables)

995895 - Disclosure - Unpaid losses and loss adjustment expenses (Tables)

995905 - Disclosure - Retroactive reinsurance (Tables)

995915 - Disclosure - Long-duration insurance contracts (Tables)

995925 - Disclosure - Notes payable and other borrowings (Tables)

995935 - Disclosure - Income taxes (Tables)

995945 - Disclosure - Fair value measurements (Tables)

995955 - Disclosure - Common stock (Tables)

995965 - Disclosure - Revenues from contracts with customers (Tables)

995975 - Disclosure - Pension plans (Tables)

995985 - Disclosure - Accumulated other comprehensive income (Tables)

995995 - Disclosure - Business segment data (Tables)

996005 - Disclosure - Significant accounting policies and practices - Narrative (Detail)

996015 - Disclosure - Significant business acquisitions - Narrative (Detail)

996035 - Disclosure - Investments in fixed maturity securities (Detail)

996045 - Disclosure - Investments in fixed maturity securities - Narrative (Detail)

996055 - Disclosure - Investments in fixed maturity securities - Amortized cost and estimated fair value of securities with fixed maturities (Detail)

996065 - Disclosure - Investments in equity securities (Detail)

996075 - Disclosure - Investments in equity securities - Narrative (Detail)

996085 - Disclosure - Equity method investments - Narrative (Detail)

996095 - Disclosure - Equity method investments - Summary of carrying value and fair value of investments (Detail)

996105 - Disclosure - Equity method investments - Summary of earnings and distributions received from equity method investments (Detail)

996115 - Disclosure - Equity method investments - Unaudited financial information (Detail)

996125 - Disclosure - Investment gains (losses) (Detail)

996135 - Disclosure - Investment gains (losses) - Narrative (Detail)

996145 - Disclosure - Loans and finance receivables (Detail)

996155 - Disclosure - Loans and finance receivables - Schedule of reconciliation of allowance for credit losses on loans and finance receivables (Detail)

996165 - Disclosure - Loans and finance receivables - Narrative (Detail)

996175 - Disclosure - Loans and finance receivables - Summary of performing and non-performing home loans before allowances and discounts, by year of loan origination (Detail)

996185 - Disclosure - Other receivables (Detail)

996195 - Disclosure - Other receivables - Narrative (Detail)

996205 - Disclosure - Inventories (Detail)

996215 - Disclosure - Inventories - Narrative (Detail)

996225 - Disclosure - Property, plant and equipment (Detail)

996235 - Disclosure - Property, plant and equipment - Depreciation expense (Detail)

996245 - Disclosure - Equipment held for lease (Detail)

996255 - Disclosure - Equipment held for lease - Narrative (Detail)

996265 - Disclosure - Equipment held for lease - Summary of fixed and variable operating lease revenues (Detail)

996275 - Disclosure - Equipment held for lease - Summary of remaining operating lease receipts (Detail)

996285 - Disclosure - Leases - Summary of Information related to operating leases (Detail)

996295 - Disclosure - Leases - Summary of remaining operating lease payments (Detail)

996315 - Disclosure - Leases - Components of operating lease expenses (Detail)

996325 - Disclosure - Goodwill and other intangible assets - Goodwill (Detail)

996335 - Disclosure - Goodwill and other intangible assets - Goodwill (Parenthetical) (Detail)

996345 - Disclosure - Goodwill and other intangible assets - Intangible assets (Detail)

996355 - Disclosure - Goodwill and other intangible assets - Intangible assets - Narrative (Detail)

996375 - Disclosure - Supplemental cash flow information (Detail)

996385 - Disclosure - Insurance subsidiaries Disclosure - Narrative (Detail)

996395 - Disclosure - Insurance subsidiary disclosures - Insurance premiums by type (Detail)

996415 - Disclosure - Unpaid losses and loss adjustment expenses - Reconciliation of changes in claim liabilities (Detail)

996435 - Disclosure - Unpaid losses and loss adjustment expenses - Narrative (Detail)

996445 - Disclosure - Unpaid losses and loss adjustment expenses - Reconciliation of unpaid losses and allocated loss adjustment expenses to balance sheet liability (Detail)

996455 - Disclosure - Unpaid losses and loss adjustment expenses - Losses and allocated loss adjustment expenses Incurred (Detail)

996465 - Disclosure - Unpaid losses and loss adjustment expenses - Average historical claims duration (Detail)

996475 - Disclosure - Retroactive reinsurance - Reconciliation of changes in claim liabilities and incurred losses and loss adjustment expenses (Detail)

996485 - Disclosure - Retroactive reinsurance - Narrative (Detail)

996495 - Disclosure - Long-duration insurance contracts - Summary of life, annuity and health insurance benefits liabilities (Detail)

996505 - Disclosure - Long-duration insurance contracts - Summary of changes in discounted present values of expected future policy benefits and expected future net premiums (Detail)

996515 - Disclosure - Long-duration insurance contracts - Summary of Other Information Relating to Long-Duration Insurance Liabilities (Detail)

996525 - Disclosure - Long-duration insurance contracts - Summary of gross premiums earned and net interest expense (Detail)

996535 - Disclosure - Notes payable and other borrowings (Detail)

996545 - Disclosure - Notes payable and other borrowings - Narrative (Detail)

996555 - Disclosure - Income taxes - Liabilities (Detail)

996565 - Disclosure - Income taxes - Deferred income taxes (Detail)

996575 - Disclosure - Income taxes - Income tax expense (benefit) components (Detail)

996595 - Disclosure - Income taxes - Summary of income taxes paid (Details)

996605 - Disclosure - Income taxes - Income tax expense (benefit) reconciliation (Detail)

996645 - Disclosure - Income taxes - Narrative (Detail)

996655 - Disclosure - Fair value measurements - Financial assets and liabilities (Detail)

996665 - Disclosure - Fair value measurements - Significant unobservable inputs (Detail)

996675 - Disclosure - Fair value measurements - Other information (Detail)

996685 - Disclosure - Common stock - Narrative (Detail)

996695 - Disclosure - Common stock (Detail)

996705 - Disclosure - Common stock (Parenthetical) (Detail)

996715 - Disclosure - Revenue from contracts with customers disaggregated by reportable segment and source of revenue (Detail)

996725 - Disclosure - Revenue from contracts with customers transaction prices allocated to significant unsatisfied remaining performance obligations and timing of when performance obligations expected to be satisfied (Detail)

996735 - Disclosure - Revenue from contracts with customers transaction prices allocated to significant unsatisfied remaining performance obligations and timing of when performance obligations expected to be satisfied (Detail 1)

996745 - Disclosure - Pension plans - Net periodic pension expense (Detail)

996755 - Disclosure - Pension plans - Defined benefit pension plans - Narrative (Detail)

996765 - Disclosure - Pension plans - Projected benefit obligation, plan assets and net funded status (Detail)

996795 - Disclosure - Pension plans - Additional tabular disclosures (Detail)

996805 - Disclosure - Pension plans - Fair value of plan assets (Detail)

996815 - Disclosure - Pension plans - Defined contribution pension plans - Narrative (Detail)

996825 - Disclosure - Accumulated other comprehensive income (Detail)

996835 - Disclosure - Business segment data - Earnings data (Detail)

996845 - Disclosure - Business segment data - Reconciliations of Revenues and Earnings before income taxes (Detail)

996855 - Disclosure - Business segment data - Additional tabular disclosures (Detail)

996865 - Disclosure - Business segment data - Insurance premiums by geographic area (Detail)

996875 - Disclosure - Business segment data - Narrative (Detail)

996885 - Disclosure - Contingencies and commitments - Narrative (Detail)

996895 - Disclosure - Condensed Financial Information - Balance Sheets (Detail)

996915 - Disclosure - Condensed Financial Information - Statements of Earnings and Comprehensive Income (Detail)

996925 - Disclosure - Condensed Financial Information - Statements of Cash Flows (Detail)

996935 - Disclosure - Note to Condensed Financial Information - Narrative (Detail)