CONTRACT AND OTHER DEFERRED ASSETS & PROGRESS COLLECTIONS AND DEFERRED INCOME - Schedule of Contract Assets (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Billings in excess of revenues	$ (1,801)	$ (1,555)
GE Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Billings in excess of revenues	(1,801)	(1,555)
Operating segments | GE Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Billings in excess of revenues	(1,801)	(1,555)
Total contract assets	5,764	7,390
Nonrecurring engineering costs	2,490	2,391
Customer advances and other	3,398	3,346
Non-current contract and other deferred assets	5,888	5,737
Contract and other deferred assets	11,653	13,127
Operating segments | GE Industrial | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues in excess of billings	8,354	9,822
Billings in excess of revenues	(7,015)	(6,476)
Operating segments | GE Industrial | Equipment contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	3,707	3,327
Operating segments | GE Industrial | Power
Accounts, Notes, Loans and Financing Receivable [Line Items]
Billings in excess of revenues	(116)	(31)
Total contract assets	5,786	5,569
Nonrecurring engineering costs	16	44
Customer advances and other	822	909
Non-current contract and other deferred assets	838	953
Contract and other deferred assets	6,623	6,522
Operating segments | GE Industrial | Power | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues in excess of billings	5,282	5,342
Billings in excess of revenues	(1,640)	(1,561)
Operating segments | GE Industrial | Power | Equipment contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	2,015	1,599
Operating segments | GE Industrial | Aviation
Accounts, Notes, Loans and Financing Receivable [Line Items]
Billings in excess of revenues	(898)	(874)
Total contract assets	(1,963)	(37)
Nonrecurring engineering costs	2,409	2,257
Customer advances and other	2,481	2,313
Non-current contract and other deferred assets	4,889	4,570
Contract and other deferred assets	2,927	4,533
Operating segments | GE Industrial | Aviation | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues in excess of billings	3,072	4,480
Billings in excess of revenues	(5,375)	(4,914)
Operating segments | GE Industrial | Aviation | Equipment contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	59	82
Operating segments | GE Industrial | Renewable Energy
Accounts, Notes, Loans and Financing Receivable [Line Items]
Billings in excess of revenues	(214)	(144)
Total contract assets	1,233	1,260
Nonrecurring engineering costs	34	47
Customer advances and other	0	0
Non-current contract and other deferred assets	34	47
Contract and other deferred assets	1,268	1,307
Operating segments | GE Industrial | Renewable Energy | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues in excess of billings	0	0
Billings in excess of revenues	0	0
Operating segments | GE Industrial | Renewable Energy | Equipment contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	1,127	1,217
Operating segments | GE Industrial | Healthcare
Accounts, Notes, Loans and Financing Receivable [Line Items]
Billings in excess of revenues	(564)	(467)
Total contract assets	479	492
Nonrecurring engineering costs	31	35
Customer advances and other	128	156
Non-current contract and other deferred assets	159	190
Contract and other deferred assets	638	683
Operating segments | GE Industrial | Healthcare | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues in excess of billings	0	0
Billings in excess of revenues	0	0
Operating segments | GE Industrial | Healthcare | Equipment contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	306	324
Operating segments | GE Industrial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Billings in excess of revenues	(10)	(39)
Total contract assets	229	106
Nonrecurring engineering costs	0	8
Customer advances and other	(32)	(32)
Non-current contract and other deferred assets	(32)	(24)
Contract and other deferred assets	197	82
Operating segments | GE Industrial | Other | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues in excess of billings	0	0
Billings in excess of revenues	0	0
Operating segments | GE Industrial | Other | Equipment contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	201	106
Long-term service agreements | Operating segments | GE Industrial | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	1,338	3,346
Long-term service agreements | Operating segments | GE Industrial | Power | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	3,642	3,781
Long-term service agreements | Operating segments | GE Industrial | Aviation | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	(2,304)	(435)
Long-term service agreements | Operating segments | GE Industrial | Renewable Energy | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	0	0
Long-term service agreements | Operating segments | GE Industrial | Healthcare | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	0	0
Long-term service agreements | Operating segments | GE Industrial | Other | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	0	0
Short-term duration contracts | Operating segments | GE Industrial | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	719	717
Short-term duration contracts | Operating segments | GE Industrial | Power | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	129	190
Short-term duration contracts | Operating segments | GE Industrial | Aviation | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	282	316
Short-term duration contracts | Operating segments | GE Industrial | Renewable Energy | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	106	43
Short-term duration contracts | Operating segments | GE Industrial | Healthcare | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	173	169
Short-term duration contracts | Operating segments | GE Industrial | Other | Services Revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total contract assets	$ 29	$ 0