Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Operating cash flows:
Net income before non-controlling interests	$ 1,078	$ 938
Adjustments to reconcile net income to cash provided by operations:
Depreciation and amortization of fixed assets and capitalized software	213	201
Amortization of intangible assets	53	53
Intangible asset impairment	5	8
Adjustments to acquisition related contingent consideration liability	16	(32)
Provision for deferred income taxes	137	18
Gain on investments	(58)	(19)
Loss on disposition of assets	1	13
Stock option expense	15	23
Changes in assets and liabilities:
Net receivables	(229)	(148)
Other current assets	(71)	19
Other assets	(564)	(204)
Accounts payable and accrued liabilities	47	(208)
Accrued compensation and employee benefits	(279)	(176)
Accrued income taxes	39	88
Other liabilities	174	201
Effect of exchange rate changes	(2)	(25)
Net cash provided by operations	575	750
Financing cash flows:
Purchase of treasury shares	(400)	(180)
Proceeds from debt	546	248
Repayments of debt	(257)	(257)
Shares withheld for taxes on vested units – treasury shares	(74)	(92)
Issuance of common stock from treasury shares	254	151
Payments of contingent consideration for acquisitions	(8)	(20)
Distributions of non-controlling interests	(17)	(5)
Dividends paid	(394)	(369)
Net cash used for financing activities	(350)	(524)
Investing cash flows:
Capital expenditures	(288)	(249)
Net sales of long-term investments	90	26
Proceeds from sales of fixed assets	2	4
Dispositions	3	2
Acquisitions	(108)	(153)
Other, net	2	1
Net cash used for investing activities	(299)	(369)
Effect of exchange rate changes on cash and cash equivalents	(53)	74
Decrease in cash and cash equivalents	(127)	(69)
Cash and cash equivalents at beginning of period	2,301	2,113
Cash and cash equivalents at end of period	$ 2,174	$ 2,044