Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2013

Supplemental Cash Flow Information

Schedule of supplemental cash flow information from collateralized securities received

($ in millions)		2013			2012
Net change in proceeds managed
Net change in short-term investments	$	(25	)	$	(210	)
Operating cash flow used		(25	)		(210	)
Net change in cash		6			(2	)
Net change in proceeds managed	$	(19	)	$	(212	)
Net change in liabilities
Liabilities for collateral, beginning of year	$	(808	)	$	(462	)
Liabilities for collateral, end of period		(827	)		(674	)
Operating cash flow provided	$	19		$	212