EQUITY (Details - Share repurchases) - USD ($) $ / shares in Units, shares in Millions, $ in Millions					1 Months Ended	12 Months Ended
	Dec. 21, 2015	Sep. 28, 2015	Jun. 25, 2015	Mar. 26, 2015	Jan. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 16, 2015
Rollforward of preferred stock
Dividend paid (in dollars per share)	$ 0.28	$ 0.28	$ 0.125	$ 0.125
Common stock authorized to be repurchased						$ 3,300			$ 4,100
Accelerated Share Repurchase Agreement [Member]
Rollforward of preferred stock
Amount paid to financial institution							$ 3,100
Common Stock
Rollforward of preferred stock
Aggregate purchase price of repurchased shares						$ 10,700	$ 4,900	$ 597
Common Stock | Accelerated Share Repurchase Agreement [Member]
Rollforward of preferred stock
Percentage of share repurchased during share repurchase agreement							70.00%
Number of shares received from financial institution							53.0
Partial receipt of shares under an ASR agreement						9.2
Additional shares received from financial institution					3,500.0