FINANCIAL INSTRUMENTS AND NON-RECURRING FAIR VALUE MEASUREMENTS - Schedule of Level 3 Measurements - Significant Unobservable Inputs (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Level 3
Fair Value, Assets Measured on Non-Recurring Basis, Unobservable Input Reconciliation [Table] [Line Items]
Cost and equity method investments	$ 4,452	$ 4,406
Lower limit
Fair Value, Assets Measured on Non-Recurring Basis, Unobservable Input Reconciliation [Table] [Line Items]
Discount rate	10.00%
Upper limit
Fair Value, Assets Measured on Non-Recurring Basis, Unobservable Input Reconciliation [Table] [Line Items]
Discount rate	18.00%
Non-recurring | Level 3
Fair Value, Assets Measured on Non-Recurring Basis, Unobservable Input Reconciliation [Table] [Line Items]
Cost and equity method investments	$ 60	103
Long-lived assets	743	1,055
Financing receivables	10	30
Income approach | Non-recurring | Cost and equity method investments | Level 3
Fair Value, Assets Measured on Non-Recurring Basis, Unobservable Input Reconciliation [Table] [Line Items]
Cost and equity method investments	$ 51	$ 94
Income approach | Non-recurring | Cost and equity method investments | Lower limit | Level 3
Fair Value, Assets Measured on Non-Recurring Basis, Unobservable Input Reconciliation [Table] [Line Items]
Discount rate	9.00%	9.00%
Income approach | Non-recurring | Cost and equity method investments | Upper limit | Level 3
Fair Value, Assets Measured on Non-Recurring Basis, Unobservable Input Reconciliation [Table] [Line Items]
Discount rate	40.00%	30.00%
Income approach | Non-recurring | Cost and equity method investments | Weighted-average | Level 3
Fair Value, Assets Measured on Non-Recurring Basis, Unobservable Input Reconciliation [Table] [Line Items]
Discount rate	13.90%	11.80%
Income approach | Non-recurring | Long-lived assets | Level 3
Fair Value, Assets Measured on Non-Recurring Basis, Unobservable Input Reconciliation [Table] [Line Items]
Long-lived assets	$ 508	$ 683
Income approach | Non-recurring | Long-lived assets | Lower limit | Level 3
Fair Value, Assets Measured on Non-Recurring Basis, Unobservable Input Reconciliation [Table] [Line Items]
Discount rate	2.70%	2.50%
Income approach | Non-recurring | Long-lived assets | Upper limit | Level 3
Fair Value, Assets Measured on Non-Recurring Basis, Unobservable Input Reconciliation [Table] [Line Items]
Discount rate	17.00%	20.00%
Income approach | Non-recurring | Long-lived assets | Weighted-average | Level 3
Fair Value, Assets Measured on Non-Recurring Basis, Unobservable Input Reconciliation [Table] [Line Items]
Discount rate	7.20%	10.40%
Income approach | Non-recurring | Financing receivables, net | Level 3
Fair Value, Assets Measured on Non-Recurring Basis, Unobservable Input Reconciliation [Table] [Line Items]
Financing receivables		$ 30
Income approach | Non-recurring | Financing receivables, net | Lower limit | Level 3
Fair Value, Assets Measured on Non-Recurring Basis, Unobservable Input Reconciliation [Table] [Line Items]
Discount rate		2.50%
Income approach | Non-recurring | Financing receivables, net | Upper limit | Level 3
Fair Value, Assets Measured on Non-Recurring Basis, Unobservable Input Reconciliation [Table] [Line Items]
Discount rate		30.00%
Income approach | Non-recurring | Financing receivables, net | Weighted-average | Level 3
Fair Value, Assets Measured on Non-Recurring Basis, Unobservable Input Reconciliation [Table] [Line Items]
Discount rate		20.30%