DEFERRED INCOME (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Deferred Revenue Disclosure [Abstract]
Alliances	$ 1,506		$ 1,459
Other	265		130
Total deferred income	1,771		1,589
Deferred income current	1,165		1,003
Deferred income non-current	606		$ 586
Amortization of deferred income	$ 82	$ 81