Supplemental Cash Flow Information (Tables)

6 Months Ended

Jun. 30, 2011

Supplemental Cash Flow Information

Schedule of supplemental cashflow information from collateralized securities received

($ in millions)		Six months ended June 30,
		2011			2010
Net change in proceeds managed
Net change in short-term investments	$	(421	)	$	211
Operating cash flow (used) provided		(421	)		211
Net change in cash		(2	)		2
Net change in proceeds managed	$	(423	)	$	213
Net change in liabilities
Liabilities for collateral, beginning of year	$	(484	)	$	(658	)
Liabilities for collateral, end of period		(907	)		(445	)
Operating cash flow provided (used)	$	423		$	(213	)