FINANCIAL INSTRUMENTS AND NON-RECURRING FAIR VALUE MEASUREMENTS - Schedule of Financial Statement Effects - Net Investment Hedges (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Effect on earnings	$ (298,000,000)	$ (355,000,000)	$ (717,000,000)	$ (715,000,000)
Net Investment Hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value of derivatives increase (decrease)	(111,000,000)	107,000,000	(302,000,000)	154,000,000
Fair value of non-derivative instruments (increase) decrease	(905,000,000)	475,000,000	(1,764,000,000)	425,000,000
Shareowners' equity (increase) decrease	1,020,000,000	(552,000,000)	2,082,000,000	(513,000,000)
Effect on earnings	4,000,000	30,000,000	17,000,000	67,000,000
Earnings (loss) related to reclassification upon sale or liquidation	18,000,000	47,000,000	78,000,000	(1,025,000,000)
Discontinued operations | Net Investment Hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Earnings (loss) related to reclassification upon sale or liquidation	$ 0	$ 47,000,000	$ 59,000,000	$ (1,026,000,000)