Variable Interest Entities (Tables)

12 Months Ended

Dec. 31, 2011

Variable Interest Entities [Abstract]

Summary Of Nonconsolidated VIEs Assets And Liabilities

	December 31, 2011
					Carrying Value of Assets						Carrying Value of Liabilities
In millions	VIE Assets		Maximum Exposure to Loss		Investments(1)		Premiums Receivable(2)		Insurance Loss Recoverable(3)		Unearned Premium Revenue(4)		Loss and Loss Adjustment Expense Reserves(5)		Derivative Liabilities(6)
Insurance:
Global structured finance:
Collateralized debt obligations	$	26,507	$	15,466	$	42	$	67	$	—	$	58	$	3	$	113
Mortgage-backed residential		47,669		16,379		25		87		2,773		86		428		5
Mortgage-backed commercial		5,001		2,644		—		2		—		2		—		—
Consumer asset-backed		8,015		4,563		16		26		—		25		23		—
Corporate asset-backed		29,855		15,577		241		192		22		205		—		1
Total global structured finance		117,047		54,629		324		374		2,795		376		454		119
Global public finance		42,106		21,774		—		215		—		270		—		—
Total insurance	$	159,153	$	76,403	$	324	$	589	$	2,795	$	646	$	454	$	119

(1)—Reported within "Investments" on MBIA's consolidated balance sheets.

(2)—Reported within "Premiums receivable" on MBIA's consolidated balance sheets.

(3)—Reported within "Insurance loss recoverable" on MBIA's consolidated balance sheets.

(4)—Reported within "Unearned premium revenue" on MBIA's consolidated balance sheets.

(5)—Reported within "Loss and loss adjustment expense reserves" on MBIA's consolidated balance sheets.

(6)—Reported within "Derivative liabilities" on MBIA's consolidated balance sheets.

	December 31, 2010
					Carrying Value of Assets						Carrying Value of Liabilities
In millions	VIE Assets		Maximum Exposure to Loss		Investments(1)		Premiums Receivable(2)		Insurance Loss Recoverable(3)		Unearned Premium Revenue(4)		Loss and Loss Adjustment Expense Reserves(5)		Derivative Liabilities(6)
Insurance:
Global structured finance:
Collateralized debt obligations	$	30,628	$	18,068	$	126	$	78	$	—	$	68	$	—	$	360
Mortgage-backed residential		56,828		18,494		71		95		2,270		93		598		3
Mortgage-backed commercial		5,547		3,138		—		2		—		2		—		—
Consumer asset-backed		11,709		6,780		19		30		—		29		—		—
Corporate asset-backed		42,380		22,468		246		325		5		340		—		—
Total global structured finance		147,092		68,948		462		530		2,275		532		598		363
Global public finance		42,370		21,201		—		225		—		280		—		—
Total insurance	$	189,462	$	90,149	$	462	$	755	$	2,275	$	812	$	598	$	363

(1)—Reported within "Investments" on MBIA's consolidated balance sheets.

(2)—Reported within "Premiums receivable" on MBIA's consolidated balance sheets.

(3)—Reported within "Insurance loss recoverable" on MBIA's consolidated balance sheets.

(4)—Reported within "Unearned premium revenue" on MBIA's consolidated balance sheets.

(5)—Reported within "Loss and loss adjustment expense reserves" on MBIA's consolidated balance sheets.

(6)—Reported within "Derivative liabilities" on MBIA's consolidated balance sheets.