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## Other Invested Assets 

Other invested assets is comprised primarily of freestanding derivatives with positive estimated fair values (see Note 9), tax credit partnerships, and leveraged leases. 

## Leveraged Leases 

Investment in leveraged leases, included in other invested assets, consisted of the following: 

<img src='content_image/182676.jpg'>

Rental receivables are generally due in periodic installments. The payment periods range from one to 15 years but, in certain circumstances can be over 30 years. For rental receivables, the primary credit quality indicator is whether the rental receivable is performing or non-performing, which is assessed monthly. The Company generally defines non-performing rental receivables as those that are 90 days or more past due. At December 31, 2012 and 2011, all rental receivables were performing. 

The deferred income tax liability related to leveraged leases was $1.6 billion and $1.5 billion at December 31, 2012 and 2011, respectively. The components of income from investment in leveraged leases, excluding net investment gains (losses) were as follows: 

<img src='content_image/182677.jpg'>

## Cash Equivalents 

The carrying value of cash equivalents, which includes securities and other investments with an original or remaining maturity of three months or less at the time of purchase, was $6.1 billion and $5.0 billion at December 31, 2012 and 2011, respectively. 

## Net Unrealized Investment Gains (Losses) 

The components of net unrealized investment gains (losses), included in AOCI, were as follows: 

<img src='content_image/182678.jpg'>

