FAIR VALUE MEASUREMENTS (Details 8) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Fair Value, Option, Quantitative Disclosures
Fair Value Options Changes in Fair Value Gain (loss)	$ 303	$ 1,661	$ 1,464	$ 6,032
Fair value option credit risk gains (losses) on liabilities	(22)	(126)	(37)	(621)
Fair Value Option | Other long-term debt
Fair Value, Option, Quantitative Disclosures
Fair Value Options Changes in Fair Value Gain (loss)	(51)	(86)	271	(750)
Fair Value Option | Other liabilities
Fair Value, Option, Quantitative Disclosures
Fair Value Options Changes in Fair Value Gain (loss)	(4)	(9)	(10)	(31)
Fair Value Option | Mortgage and other loans receivable, net of allowance
Fair Value, Option, Quantitative Disclosures
Fair Value Options Changes in Fair Value Gain (loss)	1	10	3	41
Fair Value Option | Bond and equity securities
Fair Value, Option, Quantitative Disclosures
Fair Value Options Changes in Fair Value Gain (loss)	331	875	963	1,782
Fair Value Option | Trading - ML II Interest
Fair Value, Option, Quantitative Disclosures
Fair Value Options Changes in Fair Value Gain (loss)				246
Fair Value Option | Trading - ML III Interest
Fair Value, Option, Quantitative Disclosures
Fair Value Options Changes in Fair Value Gain (loss)		330		2,888
Fair Value Option | Retained interest in AIA
Fair Value, Option, Quantitative Disclosures
Fair Value Options Changes in Fair Value Gain (loss)		527		1,829
Fair Value Option | Alternative investments
Fair Value, Option, Quantitative Disclosures
Fair Value Options Changes in Fair Value Gain (loss)	23	11	229	11
Fair Value Option | Short-term investments and other invested assets and Other assets
Fair Value, Option, Quantitative Disclosures
Fair Value Options Changes in Fair Value Gain (loss)	$ 3	$ 3	$ 8	$ 16