v3.25.2
BASIS OF PRESENTATION (Details)
$ in Millions
12 Months Ended
Apr. 03, 2020
shares
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Aug. 01, 2022
Jan. 03, 2022
USD ($)
Jul. 26, 2021
country
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Disposal group, not discontinued operation, gain (loss) on disposal   $ 0 $ 0 $ 1,105      
Shares issued per common share (in shares) | shares 1            
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Chubb Fire and Security              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Enterprise value           $ 2,900  
Disposal group, not discontinued operation, gain (loss) on disposal       $ 1,100      
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Chubb Fire and Security | Fire and Security Segment              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Number of countries | country             17
TCC | TCC | Toshiba Corporation              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Ownership percentage         5.00%