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DAC
12 Months Ended
Dec. 31, 2022
Deferred Charges, Insurers [Abstract]  
DAC DAC Changes in the DAC asset for the years ended December 31, 2022, 2021 and 2020 were as follows:
 Year Ended December 31,
 202220212020
(in millions)
Balance, beginning of year$637 $477 $471 
Capitalization of commissions, sales and issue expenses129 122 95 
Amortization:
Impact of assumptions updates and model changes14 (4)(8)
All other(62)(21)(23)
Total amortization(48)(25)(31)
Change in unrealized investment gains and losses199 63 (58)
Balance, end of year$917 $637 $477