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INVESTMENTS - Middle Market Loans by Key Credit Quality Indicators (Detail) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2026
Dec. 31, 2025
Credit Ratings:    
Total $ 9,464 $ 10,191
Middle market loans    
Credit Ratings:    
2026 572  
2025 698  
2024 691  
2023 160  
2022 541  
Prior 1,722  
Revolving Loans 141  
Total 4,525 $ 4,404
Current-period gross writeoffs:    
2026 0  
2025 0  
2024 0  
2023 0  
2022 0  
Prior 28  
Revolving Loans 0  
Total 28  
Middle market loans | BBB Credit Rating    
Credit Ratings:    
2026 80  
2025 44  
2024 66  
2023 37  
2022 0  
Prior 88  
Revolving Loans 8  
Total 323  
Middle market loans | BB Credit Rating    
Credit Ratings:    
2026 367  
2025 325  
2024 485  
2023 93  
2022 290  
Prior 650  
Revolving Loans 46  
Total 2,256  
Middle market loans | B Credit Rating    
Credit Ratings:    
2026 119  
2025 289  
2024 121  
2023 30  
2022 196  
Prior 586  
Revolving Loans 47  
Total 1,388  
Middle market loans | CCC Credit Rating    
Credit Ratings:    
2026 0  
2025 35  
2024 17  
2023 0  
2022 46  
Prior 279  
Revolving Loans 25  
Total 402  
Middle market loans | CC Credit Rating    
Credit Ratings:    
2026 6  
2025 5  
2024 0  
2023 0  
2022 9  
Prior 66  
Revolving Loans 8  
Total 94  
Middle market loans | C and Lower Credit Rating    
Credit Ratings:    
2026 0  
2025 0  
2024 2  
2023 0  
2022 0  
Prior 53  
Revolving Loans 7  
Total $ 62