Guarantee of Registered Securities (Details 3) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
CASH PROVIDED BY (USED FOR) OPERATING ACTIVITIES	$ 269	$ 419
CASH FLOWS FROM INVESTING ACTIVITIES
Sales of long-term investments	51	96
Purchases of long-term investments	(7)	(20)
Net sales of short-term investments - non-fiduciary	259	290
Acquisition of businesses, net of cash acquired	(82)	(95)
Proceeds from sale of businesses	1	8
Capital expenditures	(129)	(99)
CASH PROVIDED BY INVESTING ACTIVITIES	93	180
CASH FLOWS FROM FINANCING ACTIVITIES
Share repurchase	(350)	(653)
Issuance of shares for employee benefit plans	64	162
Issuance of debt	332	1,469
Repayment of debt	(305)	(1,504)
Cash dividends to shareholders	(102)	(100)
Purchase of shares from noncontrolling interests	1
Dividends paid to noncontrolling interests	(6)	(6)
CASH USED FOR FINANCING ACTIVITIES	(366)	(632)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	18	(13)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	14	(46)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	272	346
CASH AND CASH EQUIVALENTS AT END OF PERIOD	286	300
Parent Guarantor
CASH FLOWS FROM OPERATING ACTIVITIES
CASH PROVIDED BY (USED FOR) OPERATING ACTIVITIES	(19)
CASH FLOWS FROM FINANCING ACTIVITIES
Share repurchase	(250)
Advances from (to) affiliates	325
Issuance of shares for employee benefit plans	15
Cash dividends to shareholders	(52)
CASH USED FOR FINANCING ACTIVITIES	38
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	19
CASH AND CASH EQUIVALENTS AT END OF PERIOD	19
Subsidiary Issuer
CASH FLOWS FROM OPERATING ACTIVITIES
CASH PROVIDED BY (USED FOR) OPERATING ACTIVITIES	(99)	(42)
CASH FLOWS FROM INVESTING ACTIVITIES
Sales of long-term investments		51
Purchases of long-term investments	(7)	(20)
Net sales of short-term investments - non-fiduciary	211	283
Acquisition of businesses, net of cash acquired	(55)	(3)
Proceeds from sale of businesses		4
CASH PROVIDED BY INVESTING ACTIVITIES	149	315
CASH FLOWS FROM FINANCING ACTIVITIES
Share repurchase	(100)	(653)
Advances from (to) affiliates	118	324
Issuance of shares for employee benefit plans	49	162
Issuance of debt	332	1,090
Repayment of debt	(298)	(1,115)
Cash dividends to shareholders	(50)	(100)
CASH USED FOR FINANCING ACTIVITIES	51	(292)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	101	(19)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	(21)	14
CASH AND CASH EQUIVALENTS AT END OF PERIOD	80	(5)
Other non-guarantor subsidiaries
CASH FLOWS FROM OPERATING ACTIVITIES
CASH PROVIDED BY (USED FOR) OPERATING ACTIVITIES	387	461
CASH FLOWS FROM INVESTING ACTIVITIES
Sales of long-term investments	51	45
Net sales of short-term investments - non-fiduciary	48	7
Acquisition of businesses, net of cash acquired	(27)	(92)
Proceeds from sale of businesses	1	4
Capital expenditures	(129)	(99)
CASH PROVIDED BY INVESTING ACTIVITIES	(56)	(135)
CASH FLOWS FROM FINANCING ACTIVITIES
Advances from (to) affiliates	(443)	(324)
Issuance of debt		379
Repayment of debt	(7)	(389)
Purchase of shares from noncontrolling interests	1
Dividends paid to noncontrolling interests	(6)	(6)
CASH USED FOR FINANCING ACTIVITIES	(455)	(340)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	18	(13)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(106)	(27)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	293	332
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 187	$ 305