CONTRACT AND OTHER DEFERRED ASSETS & PROGRESS COLLECTIONS AND DEFERRED INCOME - Progress Collections and Deferred Income (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Capitalized Contract Cost [Line Items]
Progress collections and deferred income	$ 18,215	$ 18,389
Non-current deferred income	1,801	1,555
GE Industrial
Capitalized Contract Cost [Line Items]
Progress collections and deferred income	18,371	18,575
Non-current deferred income	1,801	1,555
Operating segments | GE Industrial
Capitalized Contract Cost [Line Items]
Progress collections	16,458	16,902
Current deferred income	1,757	1,487
Progress collections and deferred income	18,215	18,389
Non-current deferred income	1,801	1,555
Total progress collections and deferred income	20,016	19,944
Operating segments | GE Industrial | Equipment contract
Capitalized Contract Cost [Line Items]
Progress collections	6,362	7,240
Operating segments | GE Industrial | Other
Capitalized Contract Cost [Line Items]
Progress collections	10,096	9,662
Operating segments | GE Industrial | Power
Capitalized Contract Cost [Line Items]
Progress collections	5,376	6,270
Current deferred income	17	18
Progress collections and deferred income	5,393	6,288
Non-current deferred income	116	31
Total progress collections and deferred income	5,509	6,319
Operating segments | GE Industrial | Power | Equipment contract
Capitalized Contract Cost [Line Items]
Progress collections	4,918	5,857
Operating segments | GE Industrial | Power | Other
Capitalized Contract Cost [Line Items]
Progress collections	458	413
Operating segments | GE Industrial | Aviation
Capitalized Contract Cost [Line Items]
Progress collections	4,837	4,863
Current deferred income	132	90
Progress collections and deferred income	4,969	4,953
Non-current deferred income	898	874
Total progress collections and deferred income	5,867	5,827
Operating segments | GE Industrial | Aviation | Equipment contract
Capitalized Contract Cost [Line Items]
Progress collections	214	115
Operating segments | GE Industrial | Aviation | Other
Capitalized Contract Cost [Line Items]
Progress collections	4,623	4,748
Operating segments | GE Industrial | Renewable Energy
Capitalized Contract Cost [Line Items]
Progress collections	5,834	5,461
Current deferred income	194	140
Progress collections and deferred income	6,028	5,602
Non-current deferred income	214	144
Total progress collections and deferred income	6,241	5,745
Operating segments | GE Industrial | Renewable Energy | Equipment contract
Capitalized Contract Cost [Line Items]
Progress collections	1,229	1,268
Operating segments | GE Industrial | Renewable Energy | Other
Capitalized Contract Cost [Line Items]
Progress collections	4,604	4,193
Operating segments | GE Industrial | Healthcare
Capitalized Contract Cost [Line Items]
Progress collections	414	305
Current deferred income	1,309	1,180
Progress collections and deferred income	1,724	1,485
Non-current deferred income	564	467
Total progress collections and deferred income	2,288	1,952
Operating segments | GE Industrial | Healthcare | Equipment contract
Capitalized Contract Cost [Line Items]
Progress collections	0	0
Operating segments | GE Industrial | Healthcare | Other
Capitalized Contract Cost [Line Items]
Progress collections	414	305
Operating segments | GE Industrial | Other
Capitalized Contract Cost [Line Items]
Progress collections	(4)	2
Current deferred income	105	59
Progress collections and deferred income	102	61
Non-current deferred income	10	39
Total progress collections and deferred income	112	100
Operating segments | GE Industrial | Other | Equipment contract
Capitalized Contract Cost [Line Items]
Progress collections	0	0
Operating segments | GE Industrial | Other | Other
Capitalized Contract Cost [Line Items]
Progress collections	$ (4)	$ 2