NOTES PAYABLE AND COMMERCIAL BANK FINANCING - Notes Payable and Finance Leases to Affiliates, and Debt of VIEs and Guarantees of Third-Party Debt (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Current portion of notes payable, finance leases, and commercial bank financing	$ 71	$ 43
Notes payable, finance leases, and commercial bank financing, less current portion	12,392	3,850
Consolidated total debt	12,463
Affiliated Entity
Debt Instrument [Line Items]
Current portion of notes payable, finance leases, and commercial bank financing	2	2
Notes payable, finance leases, and commercial bank financing, less current portion	9	11
Consolidated VIEs, aggregated
Debt Instrument [Line Items]
Notes payable, finance leases, and commercial bank financing, less current portion	16	19
Consolidated total debt	21	24
Guarantee Obligations
Debt Instrument [Line Items]
Unconditional and irrevocably guaranteed debt	$ 59	$ 77

Amount of short-term and long-term debt and lease obligation.

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