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LENDING ACTIVITIES (Details - Composition of Mortgages and other loans receivable) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total mortgage and other loans receivable $ 37,345 $ 33,537    
Allowance for losses (322) (297) $ (308) $ (271)
Mortgage and other loans receivable, net 37,023 33,240    
Commercial mortgages        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total mortgage and other loans receivable 28,596 25,042    
Allowance for losses $ (247) $ (194) $ (171) $ (159)
Commercial mortgages | California        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Percentage of mortgage loans in geographic area 12.00% 12.00%    
Commercial mortgages | New York        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Percentage of mortgage loans in geographic area 23.00% 24.00%    
Residential Mortgage        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total mortgage and other loans receivable $ 5,398 $ 3,828    
Life insurance policy loans        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total mortgage and other loans receivable 2,295 2,367    
Commercial loans, other loans and notes receivable        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total mortgage and other loans receivable $ 1,056 $ 2,300