Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net income	$ 523	$ 573
Adjustment for discontinued operations	0	0
Adjustments to reconcile net income to net cash provided by operating activities from continuing operations:
Depreciation and other amortization	163	147
Amortization of acquisition-related intangible assets	149	153
Share-based compensation	51	37
Excess tax benefits from share-based awards	(34)	(15)
Deferred income taxes	(2)	(11)
Income from investment in unconsolidated affiliate	(35)	(89)
Loss on early debt extinguishment	85	0
Dividends from unconsolidated affiliate	36	108
Other operating activities	7	0
Changes in assets and liabilities:
Trade accounts receivable	16	8
Prepaid expenses and other assets	(64)	(37)
Accounts payable and other liabilities	135	147
Deferred revenue	(75)	(61)
Net cash provided by operating activities from continuing operations	955	960
Cash flows from investing activities:
Capital expenditures, including capitalization of software costs	(292)	(225)
Net proceeds from sale of investments	1	7
Other investing activities	(5)	(1)
Net cash used in investing activities from continuing operations	(296)	(219)
Cash flows from financing activities:
Debt proceeds	2,392	544
Debt repayments, including redemption and other costs	(2,058)	(544)
Proceeds from issuance of treasury stock	60	39
Purchases of treasury stock, including employee shares withheld for tax obligations	(1,066)	(785)
Excess tax benefits from share-based awards	34	15
Other financing activities	(6)	0
Net cash used in financing activities from continuing operations	(644)	(731)
Net change in cash and cash equivalents from continuing operations	15	10
Net cash flows to discontinued operations	0	(1)
Beginning balance	294	400
Ending balance	$ 309	$ 409