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INVESTMENTS - Other Loans by Key Credit Quality Indicators (Detail) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Credit Ratings:    
Total $ 9,887 $ 10,191
Other loans    
Credit Ratings:    
2026 101  
2025 37  
2024 257  
2023 64  
2022 92  
Prior 27  
Revolving Loans 0  
Total 578 $ 447
Current-period gross writeoffs:    
2026 0  
2025 0  
2024 0  
2023 0  
2022 0  
Prior 0  
Revolving Loans 0  
Total 0  
Other loans | A Credit Rating    
Credit Ratings:    
2026 20  
2025 0  
2024 0  
2023 0  
2022 60  
Prior 0  
Revolving Loans 0  
Total 80  
Other loans | AA Credit Rating    
Credit Ratings:    
2026 0  
2025 0  
2024 0  
2023 0  
2022 8  
Prior 3  
Revolving Loans 0  
Total 11  
Other loans | BBB Credit Rating    
Credit Ratings:    
2026 81  
2025 37  
2024 257  
2023 0  
2022 24  
Prior 24  
Revolving Loans 0  
Total 423  
Other loans | BB Credit Rating    
Credit Ratings:    
2026 0  
2025 0  
2024 0  
2023 64  
2022 0  
Prior 0  
Revolving Loans 0  
Total $ 64