Income Taxes (Tables)

9 Months Ended

Sep. 30, 2012

Income Tax Disclosure [Abstract]

Net Deferred Tax Assets

Net deferred tax assets as presented in the unaudited condensed consolidated statements of financial position are as follows:

($ in millions)	September 30 2012		December 31 2011
Net current deferred tax assets	$	214	$	232
Net non-current deferred tax assets	67		128
Total net deferred tax assets	$	281	$	360