CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Assets
Cash and cash equivalents	$ 2,186	$ 2,074
Restricted cash—litigation escrow (Note 3)	49	4,432
Investment securities (Note 4):
Trading	75	66
Available-for-sale	1,994	677
Income tax receivable (Note 19)	142	179
Settlement receivable	799	454
Accounts receivable	761	723
Customer collateral (Note 11)	866	823
Current portion of client incentives	282	209
Deferred tax assets (Note 19)	481	2,027
Prepaid expenses and other current assets (Note 5)	187	122
Total current assets	7,822	11,786
Investment securities, available-for-sale (Note 4)	2,760	3,283
Client incentives	89	58
Property, equipment and technology, net (Note 6)	1,732	1,634
Other assets (Note 5)	521	151
Intangible assets, net (Note 7)	11,351	11,420
Goodwill	11,681	11,681
Total assets	35,956	40,013
Liabilities
Accounts payable	184	152
Settlement payable	1,225	719
Customer collateral (Note 11)	866	823
Accrued compensation and benefits	523	460
Client incentives	919	830
Accrued liabilities (Note 8)	613	584
Accrued litigation (Note 20)	5	4,386
Total current liabilities	4,335	7,954
Deferred tax liabilities (Note 19)	4,149	4,058
Other liabilities (Note 8)	602	371
Total liabilities	9,086	12,383
Commitments and contingencies (Note 17)
Equity
Additional paid-in capital	18,875	19,992
Accumulated income	7,974	7,809
Accumulated other comprehensive income (loss), net:
Investment securities, available-for-sale	59	3
Defined benefit pension and other postretirement plans	(60)	(186)
Derivative instruments classified as cash flow hedges	23	13
Foreign currency translation adjustments	(1)	(1)
Total accumulated other comprehensive income (loss), net	21	(171)
Total equity	26,870	27,630
Total liabilities and equity	35,956	40,013
Preferred stock
Equity
Preferred stock, $0.0001 par value, 25 shares authorized and none issued	0	0
Class A common stock
Equity
Common stock (Note 14)	0	0
Class B common stock
Equity
Common stock (Note 14)	0	0
Class C common stock
Equity
Common stock (Note 14)	$ 0	$ 0