Warranty Obligation (Tables)

3 Months Ended

Jul. 29, 2011

Warranty Obligation (Tables) [Abstract]

Schedule of Warranty Obligation [Text Block]

	Three months ended
(in millions)	July 29,		July 30,
	2011		2010
Balance at the beginning of the period	$	44	$	45
Warranty claims provision		6		6
Settlements made		(8)		(6)
Balance at the end of the period	$	42	$	45