Consolidated Statements Of Cash Flows (USD $) In Millions	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Operating cash flows:
Net income before non-controlling interests	$ 620	$ 494
Adjustments to reconcile net income to cash used for operations:
Depreciation and amortization of fixed assets and capitalized software	133	154
Amortization of intangible assets	32	36
Provision for deferred income taxes	73	22
Gain on investments	(13)	(25)
Loss on disposition of assets	1	30
Stock option expense	12	11
Changes in assets and liabilities:
Net receivables	(70)	(425)
Other current assets	(75)	(7)
Other assets	(145)	(93)
Accounts payable and accrued liabilities	148	463
Accrued compensation and employee benefits	(422)	(480)
Accrued income taxes	43	(38)
Other liabilities	64	44
Effect of exchange rate changes	(71)	86
Net cash provided by operations	330	272
Financing cash flows:
Purchase of treasury shares	(235)
Repayments of debt	(6)	(4)
Purchase of non-controlling interests	(21)	(15)
Shares withheld for taxes on vested units - treasury shares	(86)	(43)
Issuance of common stock	112	18
Dividends paid	(235)	(221)
Net cash used for financing activities	(471)	(265)
Investing cash flows:
Capital expenditures	(142)	(143)
Net sales of long-term investments	33	57
Proceeds from sales of fixed assets	1	8
Dispositions	1	119
Acquisitions	(113)	(198)
Other, net	(1)	4
Net cash used for investing activities	(221)	(153)
Effect of exchange rate changes on cash and cash equivalents	127	(121)
Decrease in cash and cash equivalents	(235)	(267)
Cash and cash equivalents at beginning of period	1,894	1,777
Cash and cash equivalents at end of period	1,659	1,510
Cash and cash equivalents - reported as discontinued operations		35
Cash and cash equivalents - continuing operations	$ 1,659	$ 1,475