POSTRETIREMENT BENEFIT PLANS - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan liability					$ 0
Plan asset or obligation reporting threshold			$ 50,000,000	$ 20,000,000
Defined benefit plan, expected future employer contributions, current year	$ 353,000,000		353,000,000
Defined benefit plan, expected future employer contributions, plans no longer disclosed	11,000,000		11,000,000
Defined contribution plan, employer contribution amount	28,000,000	$ 30,000,000	94,000,000	96,000,000
Pension plans
Defined Benefit Plan Disclosure [Line Items]
Net periodic postretirement benefit plan (income) expense	(63,000,000)	2,000,000	(228,000,000)	8,000,000
Loss due to curtailment	17,000,000	0	17,000,000	0
Benefit obligation, increase for curtailment	23,000,000
AOCI, decrease due to remeasurement	305,000,000
Defined benefit plan, employer contribution amount			157,000,000
Other postretirement plans
Defined Benefit Plan Disclosure [Line Items]
Net periodic postretirement benefit plan (income) expense	(21,000,000)	0	(63,000,000)	0
Loss due to curtailment	$ 0	0	0	0
Defined benefit plan, employer contribution amount			$ 102,000,000
U.S. GE Principal Pension and Principal Retiree Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Net periodic postretirement benefit plan (income) expense		24,000,000		73,000,000
Non-U.S. GE Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Net periodic postretirement benefit plan (income) expense		$ 0		$ 0