FINANCIAL INSTRUMENTS - Derivatives and Hedging, Narrative (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Derivative [Line Items]
Total gross notional amount	$ 101,209,000,000	$ 98,018,000,000
Excess cash collateral received	198,000,000	104,000,000
Excess cash collateral posted	995,000,000	603,000,000
Excess securities collateral received	45,000,000	27,000,000
GE
Derivative [Line Items]
Total gross notional amount	47,401,000,000	42,314,000,000
GE Capital
Derivative [Line Items]
Total gross notional amount	$ 53,808,000,000	$ 55,704,000,000