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Deferred Policy Acquisition and Sales Inducement Costs | 12 Months Ended
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Dec. 31, 2018
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) |  | 2018 |  | 2017 |  | 2016
Balance, beginning of year |  | $ | 4,191 |  |  | $ | 3,954 |  |  | $ | 3,861 |
SquareTrade acquisition |  | — |  |  | 66 |  |  | — |
Acquisition costs deferred (1) |  | 5,663 |  |  | 5,001 |  |  | 4,717 |
Amortization charged to income (1) |  | (5,222 | ) |  | (4,784 | ) |  | (4,550 | )
Effect of unrealized gains and losses |  | 152 |  |  | (46 | ) |  | (74 | )
Balance, end of year |  | $ | 4,784 |  |  | $ | 4,191 |  |  | $ | 3,954 |
Deferred sales inducement costs activity (2)
|  | For the years ended December 31,
($ in millions) |  | 2018 |  | 2017 |  | 2016
Balance, beginning of year |  | $ | 36 |  |  | $ | 40 |  |  | $ | 45 |
Sales inducements deferred |  | — |  |  | — |  |  | 1 |
Amortization charged to income |  | (4 | ) |  | (4 | ) |  | (5 | )
Effect of unrealized gains and losses |  | 2 |  |  | — |  |  | (1 | )
Balance, end of year |  | $ | 34 |  |  | $ | 36 |  |  | $ | 40 |
(1) | Includes $152 million of acquisition costs deferred and $101 million of amortization charged to income related to the revenue from contracts with customers accounting standard adopted in 2018.
(2) | 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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