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Preliminary Allocation of Purchase Price for Open Solutions (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Jan. 14, 2013	Dec. 31, 2012
Business Acquisition [Line Items]
Intangible assets		$ 571
Goodwill	5,231		4,705
Open Solutions Inc
Business Acquisition [Line Items]
Cash and cash equivalents		39
Trade accounts receivable		41
Prepaid expenses and other current assets		41
Intangible assets		571
Goodwill		531
Other long-term assets		18
Accounts payable and other current liabilities		(140)
Long-term debt, less current maturities		(952)
Other long-term liabilities		(94)
Total cash purchase price		$ 55