DEFERRED INCOME (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Deferred Income [Abstract]
Upfront, milestone and other licensing receipts	$ 4,346	$ 882
ATRIPLA* deferred revenue	339	113
Gain on sale-leaseback transactions	99	120
Other	65	88
Total deferred income	4,849	1,203
Current portion	825	337
Non-current portion	4,024	866
Amortization of deferred income	$ 308	$ 173	$ 137