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SCHEDULE V - VALUATION ALLOWANCES AND QUALIFYING ACCOUNTS
 12 Months Ended
Dec. 31, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
SCHEDULE V - VALUATION ALLOWANCES AND QUALIFYING ACCOUNTS
SCHEDULE V - VALUATION ALLOWANCES AND QUALIFYING ACCOUNTS
($ in millions)  Additions  
DescriptionBalance
as of
beginning
of period
Cumulative effect of change in accounting principle (1)
Charged
to costs
and
expenses		Other
additions		DeductionsBalance
as of
end of
period
Year ended December 31, 2020     
Allowance for credit losses on fixed income securities$— $— $3 $— $2 $1 
Allowance for credit losses on mortgage loans 3 33 37 1 15 59 
Allowance for credit losses on bank loans— 16 4 — 4 16 
Allowance for credit losses on agent loans3 2 — — — 5 
Allowance for credit losses on reinsurance recoverables3 11 1 — — 15 
Allowances for credit losses on other assets7 — — — — 7 
Allowance for credit losses on commitments to fund mortgage loans, bank loans and agent loans— 1 — — 1 — 
Year ended December 31, 2019     
Allowance for reinsurance recoverables$— $3 $— $— $3 
Allowance for estimated losses on mortgage loans3 — — — 3 
Allowance for estimated losses on agent loans2 1 — — 3 
Year ended December 31, 2018     
Allowance for estimated losses on mortgage loans$3 $— $— $— $3 
Allowance for estimated losses on agent loans2 — — — 2 
(1)Effective January 1, 2020, the Company adopted the measurement of credit losses on financial instruments accounting standard that primarily affected mortgage loans, bank loans and reinsurance recoverables.