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Deferred Policy Acquisition and Sales Inducement Costs | 12 Months Ended
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Dec. 31, 2019
Deferred Policy Acquisition and Sales Inducement Costs |
Deferred Policy Acquisition and Sales Inducement Costs |
Note 11 | Deferred Policy Acquisition and Sales Inducement Costs
Deferred policy acquisition costs activity
|  | For the years ended December 31,
($ in millions) |  | 2019 |  | 2018 |  | 2017
Balance, beginning of year |  | $ | 4,784 |  |  | $ | 4,191 |  |  | $ | 3,954 |
SquareTrade acquisition |  | — |  |  | — |  |  | 66 |
Acquisition costs deferred |  | 5,622 |  |  | 5,663 |  |  | 5,001 |
Amortization charged to income |  | (5,533 | ) |  | (5,222 | ) |  | (4,784 | )
Effect of unrealized gains and losses |  | (174 | ) |  | 152 |  |  | (46 | )
Balance, end of year |  | $ | 4,699 |  |  | $ | 4,784 |  |  | $ | 4,191 |
Deferred sales inducement costs activity (1)
|  | For the years ended December 31,
($ in millions) |  | 2019 |  | 2018 |  | 2017
Balance, beginning of year |  | $ | 34 |  |  | $ | 36 |  |  | $ | 40 |
Amortization charged to income |  | (5 | ) |  | (4 | ) |  | (4 | )
Effect of unrealized gains and losses |  | (2 | ) |  | 2 |  |  | — |
Balance, end of year |  | $ | 27 |  |  | $ | 34 |  |  | $ | 36 |
(1) Deferred sales inducement costs primarily relate to fixed annuities and interest-sensitive life contracts and are recorded as part of other assets on the Consolidated Statements of Financial Position.

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- Definition A reconciliation of deferred policy acquisition and sales inducements costs from the beginning of a period to the end of a period. + References No definition available. + Details
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