Deferred Acquisition Costs

12 Months Ended

Dec. 31, 2019

Deferred Acquisition Costs

Deferred Acquisition Costs

7. Deferred Acquisition Costs

Acquisition costs deferred and amortized were as follows:

	For the year ended December 31,
	2019		2018		2017
	(in millions)
Balance at beginning of year	$	3,693.5	$	3,540.7	$	3,380.2
Costs deferred during the year		473.5		414.9		421.8
Amortized to expense during the year (1)		(347.0)		(253.5)		(234.6)
Adjustment related to unrealized (gains) losses on available-for-sale securities and derivative instruments		(298.7)		184.9		(26.7)
Other (2)		—		(193.5)		—
Balance at end of year	$	3,521.3	$	3,693.5	$	3,540.7

(1) Includes adjustments for revisions to EGPs.

(2) Reflects the impact of capitalized costs written off or transferred from DAC to a contract cost asset as a result of adopting revenue recognition guidance in 2018. See Note 1, Nature of Operations and Significant Accounting Policies, under the caption “Recent Accounting Pronouncements” for further details.