DEFERRED INCOME (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Deferred Revenue Disclosure [Abstract]
Alliances	$ 1,480		$ 1,493
Gain on sale-leaseback transactions	35		45
Other	91		399
Total deferred income	1,606		1,937
Deferred income current	939		1,167
Deferred income non-current	667		770
Early access program			$ 300
Amortization of deferred income	$ 159	$ 174