Consolidated Statements of Cash Flows (USD $) In Millions	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income (loss)	$ 1,180	$ (272)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Net (gain) loss from investment activities	(1,207)	253
Purchases of securities	(2,606)	(2,919)
Proceeds from sales of securities	3,639	1,627
Purchases to cover securities sold, not yet purchased	(1,150)	(1,910)
Proceeds from securities sold, not yet purchased	3,243	176
Net premiums (paid) received on derivative contracts	(22)	2
Changes in receivables and payables relating to securities transactions	(90)	376
Depreciation and amortization	220	223
Other, net	(37)	(23)
Changes in cash held at consolidated affiliated partnerships and restricted cash	(1,585)	2,111
Changes in other operating assets and liabilities	(205)	(81)
Net cash provided by (used in) operating activities	1,380	(437)
Cash flows from investing activities:
Capital expenditures	(218)	(229)
Acquisitions of businesses, net of cash acquired	(35)	0
Other, net	7	(41)
Net cash used in investing activities	(246)	(270)
Cash flows from financing activities:
Capital distributions to non-controlling interests	(2,073)	(109)
Capital contributions by non-controlling interests	250	418
Partnership contributions	0	6
Partnership distributions	(31)	(42)
Distributions to non-controlling interests in subsidiary	(20)	0
Proceeds from issuance of senior unsecured notes	0	1,987
Proceeds from other borrowings	604	106
Repayments of borrowings	(253)	(1,364)
Other, net	6	(27)
Net cash (used in) provided by financing activities	(1,517)	975
Effect of exchange rate changes on cash and cash equivalents	25	(33)
Net (decrease) increase in cash and cash equivalents	(358)	235
Net change in cash of assets held for sale	2	0
Cash and Cash Equivalents, at Carrying Value, beginning of period	2,963	2,256
Cash and Cash Equivalents, at Carrying Value, end of period	2,607	2,491
Supplemental information:
Cash payments for interest, net of amounts capitalized	205	95
Net cash payments (refunds) for income taxes	40	(1)
Net unrealized gains on available-for-sale securities	1	2
Redemptions payable to non controlling interests	91	477
Investments in precious metals	150	0
LP unit issuance to purchase majority interests in ARI and Viskase	0	273
LP unit issuance to settle preferred LP unit redemptions	$ 0	$ 138