CONTRACT ASSETS - Schedule of Contract Assets (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Deferred inventory costs	$ 3,818	$ 3,349
Non-recurring engineering costs	2,345	2,185
Other	1,101	1,018
Contract assets	29,809	25,162
Related billings in excess of revenues	2,595	3,750
GE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total revenues in excess of billings	22,545	18,611
GE | Long-term product service agreements
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total revenues in excess of billings	15,358	12,752
GE | Long-term equipment contract revenues
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total revenues in excess of billings	$ 7,187	$ 5,859