COMMITMENTS, GUARANTEES, PRODUCT WARRANTIES AND OTHER LOSS CONTINGENCIES - Commitments (Details) $ in Millions	Mar. 31, 2023 USD ($)
Investment Commitments
Long-term Purchase Commitment [Line Items]
Commitments	$ 3,966
Run-off Insurance Operations
Long-term Purchase Commitment [Line Items]
Commitments	3,868
Run-off insurance operations, unconsolidated VIE investment commitment
Long-term Purchase Commitment [Line Items]
Commitments	3,761
Aerospace | Financial Assistance
Long-term Purchase Commitment [Line Items]
Commitments	$ 2,390