Warranty Obligation (Tables)

6 Months Ended

Oct. 28, 2011

Product Warranties Disclosures [Abstract]

Schedule of Warranty Obligation

	Six months ended
(in millions)	October 28,		October 29,
	2011		2010
Balance at the beginning of the period	$	44	$	45
Warranty claims provision		11		15
Settlements made		(16)		(14)
Balance at the end of the period	$	39	$	46