XML 108 R62.htm IDEA: XBRL DOCUMENT v3.8.0.1
Reserve for Unpaid Losses and Loss Adjustment Expenses Level 4 (Details) - USD ($)
$ in Millions
 9 Months Ended
Jul. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Dec. 31, 2015
Liability for Claims and Claims Adjustment Expense [Line Items]          
Beginning liabilities for unpaid losses and loss adjustment expenses, gross   $ 27,605      
Reinsurance recoverables   328 $ 260    
Ending liabilities for unpaid losses and loss adjustment expenses, gross   28,232      
Reinsurance Recoverables, Including Reinsurance Premium Paid   23,323   $ 23,311  
Workers’ compensation          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Prior incurral year development [2]   (29) (87)    
Change in Workers Compensation Discount Including Accretion [Member]          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Prior incurral year development [2]   21 21    
General Liability [Member]          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Prior incurral year development [2]   10 67    
Package business          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Prior incurral year development [2]   (22) 50    
Professional liability          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Prior incurral year development [2]   0 (35)    
Bond          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Prior incurral year development [2]   10 (6)    
Homeowners          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Prior incurral year development [2]   0 (4)    
Net Asbestos Reserves [Member]          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Prior incurral year development [2]   0 197    
Net Environmental Reserves [Member]          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Prior incurral year development [2]   0 71    
Catastrophes [Member]          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Prior incurral year development [2]   (12) (7)    
Uncollectible Reinsurance [Member]          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Prior incurral year development [2]   0 (30)    
Property, Liability and Casualty Insurance Product Line [Member]          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Beginning liabilities for unpaid losses and loss adjustment expenses, gross   21,833 21,825    
Reinsurance recoverables   2,776 2,882    
Beginning liabilities for unpaid losses and loss adjustment expenses, net   19,732 18,921 19,057 $ 18,943
Current incurral year   5,587 5,215    
Prior incurral year development [2]   1 409    
Current incurral year   5,588 5,624    
Current incurral year   1,770 1,901    
Prior incurral years   3,143 3,380    
Total payments   4,913 5,281    
Ending liabilities for unpaid losses and loss adjustment expenses, net   19,732 18,921 19,057 18,943
Reinsurance recoverables   2,817 2,694    
Ending liabilities for unpaid losses and loss adjustment expenses, gross   22,549 21,615    
Reinsurance Recoverables, Including Reinsurance Premium Paid   2,355 2,313    
Other Reserve Re Estimates [Member]          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Prior incurral year development [2]   8 11    
Commercial Lines [Member] | Commercial Property [Member]          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Prior incurral year development [2]   (5) 2    
Commercial Lines [Member] | Auto Liability [Member]          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Prior incurral year development [2]   20 19    
Personal Auto Liability [Member] | Auto Liability [Member]          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Prior incurral year development [2]   0 140    
Group Benefits          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Beginning liabilities for unpaid losses and loss adjustment expenses, gross   5,772 5,889    
Reinsurance recoverables   208 218    
Beginning liabilities for unpaid losses and loss adjustment expenses, net   5,475 5,572 5,564 5,671
Current incurral year   1,960 1,930    
Prior year's discount accretion   148 155    
Prior incurral year development [2]   (162) (126)    
Current incurral year   1,946 1,959    
Current incurral year   917 932    
Prior incurral years   1,118 1,126    
Total payments   2,035 2,058    
Ending liabilities for unpaid losses and loss adjustment expenses, net   5,475 5,572 $ 5,564 $ 5,671
Reinsurance recoverables   208 211    
Ending liabilities for unpaid losses and loss adjustment expenses, gross   5,683 5,783    
Group Benefits | Short-term Disability [Member]          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Prior incurral year development [2]   105 85    
Group Benefits | group life term, disability and accident [Member]          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Prior incurral year development [2]   55 30    
Operating Expense [Member]          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Current incurral year   0 0    
Maxum [Member]          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Liability for Unpaid Claims and Claims Adjustment Expense, Business Acquisitions $ 122        
P&C Runoff Subsidiaries [Member]          
Liability for Claims and Claims Adjustment Expense [Line Items]          
Beginning liabilities for unpaid losses and loss adjustment expenses, net   0 487    
Ending liabilities for unpaid losses and loss adjustment expenses, net   $ 0 $ 487