STATUTORY FINANCIAL DATA AND RESTRICTIONS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statutory capital and surplus and net income (loss)
Increase (decrease) in the previously reported amount of statutory net income as a result of the finalization of statutory filings		$ 207
Increase (decrease) in the previously reported amount of statutory surplus as a result of the finalization of statutory filings		(273)
Subsidiary Dividend Restrictions
Statutory capital and surplus of consolidated insurance subsidiaries companies restricted from transfer to parent	$ 41,600
New York
Subsidiary Dividend Restrictions
Dividend restrictions, as percentage of statutory policyholders' surplus	10.00%
Dividend restrictions, as percentage of adjusted net investment income, as defined	100.00%
General Insurance Companies
Statutory capital and surplus and net income (loss)
Statutory net income (loss)	$ (1,486)	(1,296)	$ (1,066)
Statutory capital and surplus	34,619	32,659
Aggregate minimum required statutory capital and surplus	13,372	11,435
General Insurance Companies | Domestic
Statutory capital and surplus and net income (loss)
Statutory net income (loss)	(1,138)	(978)	260
Statutory capital and surplus	18,172	20,938
Aggregate minimum required statutory capital and surplus	4,307	5,134
General Insurance Companies | Foreign
Statutory capital and surplus and net income (loss)
Statutory net income (loss)	(348)	(318)	(1,326)
Statutory capital and surplus	16,447	11,721
Aggregate minimum required statutory capital and surplus	9,065	6,301
Life and Retirement companies
Statutory capital and surplus and net income (loss)
Statutory net income (loss)	77	1,087	2,299
Statutory capital and surplus	11,221	12,595
Aggregate minimum required statutory capital and surplus	4,535	3,267
Statutory surplus and net income (loss)
Permitted practice	438	407
Life and Retirement companies | Domestic
Statutory capital and surplus and net income (loss)
Statutory net income (loss)	673	1,066	2,252
Statutory capital and surplus	9,477	12,149
Aggregate minimum required statutory capital and surplus	3,197	3,146
Life and Retirement companies | Foreign
Statutory capital and surplus and net income (loss)
Statutory net income (loss)	(596)	21	$ 47
Statutory capital and surplus	1,744	446
Aggregate minimum required statutory capital and surplus	$ 1,338	$ 121