INVESTMENTS - Other Loans by Key Credit Quality Indicators (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 11,828	$ 12,801
Other loans
Financing Receivable, Credit Quality Indicator [Line Items]
2024	78
2023	94
2022	167
2021	3
2020	0
Prior	0
Revolving Loans	0
Total	342	$ 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	21
2022	86
2021	0
2020	0
Prior	0
Revolving Loans	0
Total	107
Other loans | AA Credit Rating
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0
2022	8
2021	3
2020	0
Prior	0
Revolving Loans	0
Total	11
Other loans | BBB Credit Rating
Financing Receivable, Credit Quality Indicator [Line Items]
2024	78
2023	73
2022	0
2021	0
2020	0
Prior	0
Revolving Loans	0
Total	151
Other loans | BB Credit Rating
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0
2022	73
2021	0
2020	0
Prior	0
Revolving Loans	0
Total	$ 73