INSURANCE LIABILITIES (Details - Reconciliation of the Net Incurred and Paid Claims Development - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Liability For Claims And Claims Adjustment Expense [LineItems]
Net Loss Reserves	$ 61,545	$ 60,603	$ 61,612	$ 64,316
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	15,532	14,339	15,648	17,231
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	77,077	$ 74,942	$ 77,260	$ 81,547
Reportable Subsegments [Member]
Liability For Claims And Claims Adjustment Expense [LineItems]
Net Loss Reserves	57,587
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	13,363
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	70,950
Reportable Subsegments [Member] | U.S. Long Tail Insurance Lines
Liability For Claims And Claims Adjustment Expense [LineItems]
Net Loss Reserves	5,967
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	1,679
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	7,646
Reportable Subsegments [Member] | Commercial Insurance [Member]
Liability For Claims And Claims Adjustment Expense [LineItems]
Net Loss Reserves	48,166
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	11,307
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	59,473
Reportable Subsegments [Member] | Commercial Insurance [Member] | Liability And Financial Lines [Member]
Liability For Claims And Claims Adjustment Expense [LineItems]
Net Loss Reserves	42,253
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	9,711
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	51,964
Reportable Subsegments [Member] | Commercial Insurance [Member] | Liability And Financial Lines [Member] | U.S. Workers Compensation
Liability For Claims And Claims Adjustment Expense [LineItems]
Net Loss Reserves	13,069
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	2,879
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	15,948
Reportable Subsegments [Member] | Commercial Insurance [Member] | Liability And Financial Lines [Member] | U.S. Excess Casualty
Liability For Claims And Claims Adjustment Expense [LineItems]
Net Loss Reserves	8,749
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	1,115
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	9,864
Reportable Subsegments [Member] | Commercial Insurance [Member] | Liability And Financial Lines [Member] | U.S. Other Casualty
Liability For Claims And Claims Adjustment Expense [LineItems]
Net Loss Reserves	8,746
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	3,209
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	11,955
Reportable Subsegments [Member] | Commercial Insurance [Member] | Liability And Financial Lines [Member] | U.S. Financial Lines
Liability For Claims And Claims Adjustment Expense [LineItems]
Net Loss Reserves	6,102
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	1,195
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	7,297
Reportable Subsegments [Member] | Commercial Insurance [Member] | Liability And Financial Lines [Member] | Europe Casualty and Financial Lines
Liability For Claims And Claims Adjustment Expense [LineItems]
Net Loss Reserves	5,587
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	1,313
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	6,900
Reportable Subsegments [Member] | Commercial Insurance [Member] | Property And Special Risks [Member]
Liability For Claims And Claims Adjustment Expense [LineItems]
Net Loss Reserves	5,913
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	1,596
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	7,509
Reportable Subsegments [Member] | Commercial Insurance [Member] | Property And Special Risks [Member] | U.S. And Europe
Liability For Claims And Claims Adjustment Expense [LineItems]
Net Loss Reserves	5,913
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	1,596
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	7,509
Reportable Subsegments [Member] | Consumer Insurance [Member] | Personal Insurance [Member]
Liability For Claims And Claims Adjustment Expense [LineItems]
Net Loss Reserves	3,454
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	377
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	3,831
Reportable Subsegments [Member] | Consumer Insurance [Member] | Personal Insurance [Member] | U.S. Europe And Japan
Liability For Claims And Claims Adjustment Expense [LineItems]
Net Loss Reserves	3,454
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	377
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	3,831
Reportable Subsegments [Member] | Legacy portfolio [Member] | U.S. Long Tail Insurance Lines
Liability For Claims And Claims Adjustment Expense [LineItems]
Net Loss Reserves	5,967
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments	1,679
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	7,646
Consolidation, Eliminations [Member]
Liability For Claims And Claims Adjustment Expense [LineItems]
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	77,077
Consolidation, Eliminations [Member] | Discount On Workers Compensation Lines
Liability For Claims And Claims Adjustment Expense [LineItems]
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	(3,570)
Consolidation, Eliminations [Member] | Other Product Lines
Liability For Claims And Claims Adjustment Expense [LineItems]
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	6,192
Consolidation, Eliminations [Member] | Unallocated Loss Adjustment Expenses
Liability For Claims And Claims Adjustment Expense [LineItems]
Gross Liability for Unpaid Loss and Loss Adjustment Expenses	$ 3,505