INVESTMENTS - Other Loans by Key Credit Quality Indicators (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 12,033	$ 12,801
Other loans
Financing Receivable, Credit Quality Indicator [Line Items]
2024	5
2023	86
2022	173
2021	3
2020	0
Prior	0
Revolving Loans	0
Total	267	$ 301
2024	0
2023	0
2022	0
2021	0
2020	0
Prior	0
Revolving Loans	0
Total	0
Other loans | A Credit Rating
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	22
2022	76
2021	0
2020	0
Prior	0
Revolving Loans	0
Total	98
Other loans | AA Credit Rating
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0
2022	22
2021	3
2020	0
Prior	0
Revolving Loans	0
Total	25
Other loans | BBB Credit Rating
Financing Receivable, Credit Quality Indicator [Line Items]
2024	5
2023	64
2022	0
2021	0
2020	0
Prior	0
Revolving Loans	0
Total	69
Other loans | BB Credit Rating
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0
2022	75
2021	0
2020	0
Prior	0
Revolving Loans	0
Total	$ 75