INSURANCE LIABILITIES (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Movement In Guaranteed Benefit Liability Gross [Line Items]
Balance, beginning of period	$ 7,037	$ 6,880
Paid guarantee benefits	(374)	(529)
Other changes in reserve	1,930	1,381
Balance, end of period	8,593	7,732
Guaranteed Minimum Death Benefit
Movement In Guaranteed Benefit Liability Gross [Line Items]
Balance, beginning of period	3,165	2,991
Paid guarantee benefits	(272)	(280)
Other changes in reserve	1,083	478
Balance, end of period	3,976	3,189
Guaranteed Minimum Income Benefit
Movement In Guaranteed Benefit Liability Gross [Line Items]
Balance, beginning of period	3,872	3,889
Paid guarantee benefits	(102)	(249)
Other changes in reserve	847	903
Balance, end of period	$ 4,617	$ 4,543