Settlement Assets and Obligations (Details) (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010
Settlement assets:
Cash and cash equivalents	$ 159.6	$ 133.8
Receivables from selling agents and business-to-business customers	1,119.5	1,132.3
Investment securities	1,306.2	1,369.1
Total settlement assets	2,585.3	2,635.2
Settlement obligations:
Money transfer, money order and payment service payables	2,015.2	2,170.0
Payables to agents	570.1	465.2
Total settlement obligations	$ 2,585.3	$ 2,635.2

Settlement assets represent funds received or to be received from agents for unsettled money transfers, money orders and consumer payments. Settlement assets also include amounts receivable from businesses for the value of customer cross-currency payment transactions related to the global business payments segment. Settlement assets consist of cash and cash equivalents, receivables from selling agents and business-to-business customers and investment securities.

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Settlement assets.

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This item represents the portion of total settlement assets comprised of cash and cash equivalents.

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This item represents the portion of total settlement assets comprised of investment securities.

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This item represents the portion of total settlement assets comprised of receivables from selling agents and business-to-business customers.

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Settlement obligations represent amounts payable under money transfers, money orders and consumer payment service arrangements. Settlement obligations also include amounts payable to businesses for the value of customer cross-currency payment transactions related to the global business payments segment. Settlement obligations consist of money transfer, money orders and payment service payables and payables to agents. Money transfer payables represent amounts to be paid to transferees when they request their funds. Money order payables represent amounts not yet presented for payment. Payment service payables represent amounts to be paid to businesses. Payables to agents represent amounts due to agents for money transfers that have been settled with transferees.

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Settlement Obligations.

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This item represents the portion of total settlement obligations comprised of money transfers, money order and payment service payables.

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This item represents the portion of total settlement obligations comprised of payables to agents.

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