POSTRETIREMENT BENEFIT PLANS - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Plan asset or obligation reporting threshold	$ 50
Defined benefit plan, expected future employer contributions, next fiscal year	336
Defined contribution plan, employer contribution amount	32	$ 33
OPEB Plans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, employer contribution amount	39
GE HealthCare Supplemental Pension Plan | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, employer contribution amount	27
Other Pension Plans | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, employer contribution amount	$ 21