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Policy Claims and Benefits (Tables)
3 Months Ended
Mar. 31, 2021
Insurance [Abstract]  
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]
The liability for unpaid claims is reported in future policy benefits and other policy claims and benefits on the Company’s condensed consolidated balance sheets. Activity associated with unpaid claims is summarized below (dollars in millions):
Three months ended March 31,
20212020
Balance at beginning of year$7,556 $6,786 
Less: reinsurance recoverable(641)(564)
Net balance at beginning of year6,915 6,222 
Incurred:
Current year4,097 2,838 
Prior years(59)11 
Total incurred4,038 2,849 
Payments:
Current year(164)(131)
Prior years(3,196)(2,342)
Total payments(3,360)(2,473)
Other changes:
Interest accretion10 
Foreign exchange adjustments(51)(283)
Total other changes(41)(274)
Net balance at end of period7,552 6,324 
Plus: reinsurance recoverable732 580 
Balance at end of period$8,284 $6,904