FAIR VALUE DISCLOSURES - Quantitative Information About Level 3 (Details) - Level 3 $ in Millions	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Corporate \| Matrix pricing model
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value	$ 4	$ 9
Corporate \| Spread over Benchmark \| Matrix pricing model \| Minimum
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, measurement input	0.0002	0.0070
Corporate \| Spread over Benchmark \| Matrix pricing model \| Maximum
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, measurement input	0.0002	0.0145
Corporate \| Spread over Benchmark \| Matrix pricing model \| Weighted Average
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, measurement input	0.0002	0.0104
GMIBNLG \| Discounted cash flow
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Asset, fair value	$ (9)

Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability.

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Value of input used to measure investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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