Condensed Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net income	$ 210	$ 208	$ 713	$ 730
Less: Net income attributable to noncontrolling interests	6	10	25	28
Net income attributable to Aon shareholders	204	198	688	702
Other comprehensive income (loss), net of tax:
Change in fair value of derivatives	15	(9)	5	(14)
Foreign currency translation adjustments	164	(209)	71	(12)
Post-retirement benefit obligation	7	15	46	42
Total other comprehensive income (loss)	186	(203)	122	16
Less: Other comprehensive income (loss) attributable to noncontrolling interests	4	(1)	2	(1)
Total other comprehensive income (loss) attributable to Aon shareholders	182	(202)	120	17
Comprehensive income (loss) attributable to Aon shareholders	$ 386	$ (4)	$ 808	$ 719

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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