Severance and Exit Costs (Tables)

3 Months Ended

Jun. 30, 2012

Severance and Exit Costs [Abstract]

Severance and exit costs activity

(in millions)	Accrued Balance at March 31, 2012		Expense		Change in Estimate			Payments			Accretion and Other			Accrued Balance at June 30, 2012
Severance	$	13	$	—	$	(3	)	$	(5	)	$	—		$	5
Facilities Abandonment		40		—		—			(3	)		(1	)		36
Total Accrued Liabilities	$	53												$	41

(in millions)	Accrued Balance at March 31, 2011		Expense		Change in Estimate			Payments			Accretion and Other		Accrued Balance at June 30, 2011
Severance	$	8	$	—	$	(1	)	$	(2	)	$	—	$	5
Facilities Abandonment		47		—		1			(4	)		1		45
Total Accrued Liabilities	$	55											$	50