Financial Performance - Net earnings attributable to Berkshire shareholders for 2024 were 88.995billion,adecreaseof7.896.223 billion in 2023[381]. - Total revenue for 2024 was 26,348million,aslightincreasefrom26,008 million in 2023[462]. - Net earnings for 2024 were 41.6billion,includingafter−taxinvestmentgainsofapproximately41.6 billion[549]. - Net earnings attributable to Berkshire shareholders increased to 3,730millionin2024,up54.32,610 million in 2023[464]. Insurance Operations - Insurance underwriting generated after-tax earnings of 9.020billionin2024,upfrom5.428 billion in 2023, benefiting from improved operating results at GEICO[384]. - GEICO's pre-tax underwriting earnings increased to 7.813billionin2024from3.635 billion in 2023, with premiums written rising by 3.1billion(7.74.1 billion in 2024, totaling 13.670billion,comparedto9.567 billion in 2023[384]. - GEICO's loss ratio improved to 71.8% in 2024 from 81.0% in 2023, driven by higher average premiums and lower claims frequencies[400]. - Losses and loss adjustment expenses rose by 1.4billion(12.8681 million (15.0%) in 2024, leading to an expense ratio of 27.8%, up 1.3 percentage points from 2023[412]. - Pre-tax underwriting earnings for the Berkshire Hathaway Reinsurance Group were 2.737billionin2024,anincreasefrom1.904 billion in 2023[416]. Investment Performance - Investment gains for 2024 were 41.558billion,adecreasefrom58.873 billion in 2023, reflecting significant volatility in market prices[381][389]. - The company recorded net unrealized gains of 49.3billionin2024and69.1 billion in 2023 from changes in market prices of equity securities[544]. - Pre-tax net investment income rose to 16.748billionin2024,a44.611.581 billion in 2023[434]. - Interest and other investment income increased by 5.5billionin2024comparedto2023,whichwasanincreaseof4.4 billion compared to 2022[435]. Operational Performance - Manufacturing, service, and retailing earnings decreased by 2.2% in 2024 to 13.072billion,followinga6.85.031 billion, impacted by labor agreement charges and ongoing litigation[385]. - Berkshire Hathaway Energy's after-tax earnings increased by 1.4billionin2024to3.730 billion, reflecting lower wildfire loss accruals[386]. - Railroad operating revenues were 23.4billionin2024,adecreaseof0.58.4 billion, driven by a volume increase of 16.2%[447]. - Operating revenues from agricultural products increased by 4.5% to 5.8billionin2024,attributedtoavolumeincreaseof7.419.0 billion, with BNSF and BHE accounting for 12.7billionofthistotal[557].−Cash,cashequivalents,andU.S.TreasuryBillsheldbyinsuranceandotherbusinessestotaled318.0 billion as of December 31, 2024[551]. - Berkshire repurchased 2.9billionofitscommonstockin2024,maintainingafocusonfinancialstrengthandliquidity[550].−TotalborrowingsatDecember31,2024,were124.8 billion, with over 95% issued by the Berkshire parent company and its subsidiaries[553]. Tax and Regulatory - The effective income tax rate increased to 18.4% in 2024 from 17.4% in 2023[434]. - Estimated future payments associated with long-term contractual obligations are projected to approximate 30billionoverthenextfiveyears[560].ClaimsandLiabilities−AsofDecember31,2024,totalnetunpaidlossesandlossadjustmentexpensesamountedto49,633 million, with 15,936millioninpropertyand33,697 million in casualty[572]. - The gross unpaid losses and loss adjustment expenses totaled 51,636million,with16,570 million in property and 35,066millionincasualty[572].−Caselossestimatesexceededcedingcompanyestimatesbyapproximately1.7 billion as of December 31, 2024[578]. - Management maintains internal procedures to ensure the completeness and compliance of reported loss data with contract terms[577].