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Deferred Acquisition Costs
12 Months Ended
Dec. 31, 2021
Deferred Acquisition Costs  
Deferred Acquisition Costs

7. Deferred Acquisition Costs

Acquisition costs deferred and amortized were as follows:

For the year ended December 31, 

     

2021

     

2020

     

2019

  

(in millions)

Balance at beginning of year

$

3,409.7

$

3,521.3

$

3,693.5

Costs deferred during the year

461.4

 

457.0

 

473.5

Amortized to expense during the year (1)

(285.4)

 

(388.1)

 

(347.0)

Adjustment related to unrealized (gains) losses on available-for-sale securities and derivative instruments

171.8

 

(180.5)

 

(298.7)

Balance at end of year

$

3,757.5

$

3,409.7

$

3,521.3

(1)Includes adjustments for revisions to EGPs.