INVESTMENTS - Other Loans by Key Credit Quality Indicators (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Loan-to-Value Ratio:
Total	$ 11,224	$ 12,801
Other loans
Loan-to-Value Ratio:
2024	130
2023	66
2022	163
2021	3
2020	0
Prior	0
Revolving Loans	0
Total	362	$ 301
Current-period gross writeoffs:
2024	0
2023	0
2022	0
2021	0
2020	0
Prior	0
Revolving Loans	0
Total	0
Other loans | A Credit Rating
Loan-to-Value Ratio:
2024	0
2023	0
2022	82
2021	0
2020	0
Prior	0
Revolving Loans	0
Total	82
Other loans | AA Credit Rating
Loan-to-Value Ratio:
2024	0
2023	0
2022	8
2021	3
2020	0
Prior	0
Revolving Loans	0
Total	11
Other loans | BBB Credit Rating
Loan-to-Value Ratio:
2024	130
2023	66
2022	0
2021	0
2020	0
Prior	0
Revolving Loans	0
Total	196
Other loans | BB Credit Rating
Loan-to-Value Ratio:
2024	0
2023	0
2022	73
2021	0
2020	0
Prior	0
Revolving Loans	0
Total	$ 73