We have entered into various commercial commitments, such as guarantees and standby letters of credit, related to certain transactions. These commercial commitments require us to fulfill specific obligations in the event of third party demands. Similar to our balance sheet investments, these commitments expose us to credit, market, and equipment risk. Accordingly, we evaluate these commitments and other contingent obligations using techniques similar to those we use to evaluate funded transactions.

The following table shows our commercial commitments as of December 31 (in millions):



	2013		2012
Lease payment guarantees	$	34.8	$	41.0
Standby letters of credit	8.8		9.7
Asset residual value guarantees	5.6		11.2
Performance bonds	0.6		0.6
Affiliate guarantees	—		42.0
Total commercial commitments (1)	$	49.8	$	104.5

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(1)	The carrying value of liabilities on the balance sheet for commercial commitments was $6.2 million at December 31, 2013 and $6.4 million at December 31, 2012. The expirations of these commitments range from 2014 to 2023. We are not aware of any event that would require us to satisfy any of our commitments.

Lease payment guarantees are commitments to financial institutions to make lease payments for a third party in the event they default. We reduce any liability that may result from these guarantees by the value of the underlying asset or group of assets.

We are also parties to standby letters of credit and performance bonds, which primarily relate to contractual obligations and general liability insurance coverages. No material claims have been made against these obligations, and no material losses are anticipated.

Asset residual value guarantees are commitments to third parties that an asset or group of assets will be worth a specified value at the end of a lease term. We earn a fee for providing these guarantees, which we amortize into income over the guarantee period. If the assets are disposed of for more than the amount we guaranteed, we receive a share of the proceeds in excess of the guaranteed amount. We record these residual sharing gains in our net gain on asset dispositions. If the net realizable value of the asset is less than the guaranteed amount, we incur a liability for the amount we guaranteed less the value realized from the asset's disposal.

Affiliate guarantees are commitments to repay affiliate financings that were used to acquire assets, and we make these guarantees in lieu of direct equity investments in the affiliates. Affiliate guarantees exclude guarantees that have no stated maximum potential future payment for which we consider the likelihood of performance as remote. We are not aware of any events that would require us to satisfy our affiliate guarantees and expect our affiliates' cash flows will be sufficient to meet their financing obligations.