CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income	$ 117	$ 132
Adjustment for discontinued operations
Adjustments to reconcile net income to net cash provided by operating activities from continuing operations:
Depreciation and other amortization	49	47
Amortization of acquisition-related intangible assets	48	40
Share-based compensation	14	14
Deferred income taxes	(7)	(1)
Non-cash impairment charge	30
Other non-cash items	(10)	(7)
Changes in assets and liabilities, net of effects from acquisitions:
Trade accounts receivable	27	18
Prepaid expenses and other assets	(32)	(5)
Accounts payable and other liabilities	(4)	(9)
Deferred revenue	(10)	5
Net cash provided by operating activities from continuing operations	222	234
Cash flows from investing activities:
Capital expenditures, including capitalization of software costs	(58)	(58)
Payment for acquisition of business, net of cash acquired	(16)
Net cash (used in) provided by investing activities from continuing operations	(74)	(58)
Cash flows from financing activities:
Proceeds from long-term debt	1,011
Repayments of long-term debt	(1,149)
Issuance of treasury stock	13	35
Purchases of treasury stock	(67)	(243)
Other financing activities	4	4
Net cash used in financing activities from continuing operations	(188)	(204)
Net change in cash and cash equivalents from continuing operations	(40)	(28)
Net cash flows from discontinued operations	38	2
Beginning balance	358	337
Ending balance	356	311
Discontinued operations cash flow information:
Net cash provided by operating activities	3	2
Net cash provided by investing activities	35
Net change in cash and cash equivalents from discontinued operations	38	2
Net cash flows to continuing operations	(38)	(2)
Beginning balance-discontinued operations
Ending balance-discontinued operations