Capitalized Software Development Costs (Tables)

12 Months Ended

Dec. 31, 2012

Finite-Lived Intangible Assets, Net [Abstract]

Schedule of total capitalized software development costs subject to amortization and related amortization expense

	Indemnity Shareholder Interest
(in millions)	Years ended December 31,
	2012			2011			2010
Gross carrying amount	$	54		$	43		$	32
Accumulated amortization	(11		)	(5		)	(1		)
Net carrying amount	$	43		$	38		$	31
Amortization expense	$	6		$	4		$	1

Schedule of estimated future amortization expense related to capitalized software development costs

(in millions)
	Indemnity Shareholder Interest
Year ending December 31,	Estimated amortization expense
2013	$	7
2014	7
2015	8
2016	8
2017	7