GMDB, GMIB, GIB, GWBL AND OTHER FEATURES AND NO LAPSE GUARANTEE FEATURES 1 (Details) - Guaranteed Minimum Death Benefit - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016
Guaranteed Minimum Death Benefit Reinsurance Ceded [Abstract]
Balance, beginning of year	$ 1,558	$ 1,430
Paid guarantee benefits	(91)	(92)
Other changes in reserve	366	192
Balance, End of Period	$ 1,833	$ 1,530

Sum of the amount of guaranteed minimum benefits the ceding insurer expects to recover on insurance policies ceded to other insurance entities as of the balance sheet date for all guaranteed benefit types.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 80
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6484115&loc=d3e19393-158473

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 20
-Section 55
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=6588021&loc=d3e7104-158389

Name:	us-gaap_ReinsuranceRecoverableGuaranteeBenefits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant