Fair Value Measurements (Tables)

3 Months Ended

Jul. 29, 2011

Fair Value Measurements (Tables) [Abstract]

Fair Value Assets Measured On Recurring Basis [Text Block]

	Fair Value		Fair Value Measurements
	as of		Using Inputs Considered as
(in millions)	July 29, 2011		Level 1		Level 2		Level 3
Assets:
Corporate debt securities	$	2,390	$	-	$	2,373	$	17
Auction rate securities		134		-		-		134
Mortgage-backed securities		857		-		824		33
U.S. government and agency securities		2,695		1,398		1,297		-
Foreign government and agency securities		89		-		89		-
Certificates of deposit		109		-		109		-
Other asset-backed securities		400		-		394		6
Marketable equity securities		225		225		-		-
Exchange-traded funds		41		41		-		-
Derivative assets		175		33		142		-
Total assets	$	7,115	$	1,697	$	5,228	$	190
Liabilities:
Derivative liabilities	$	296	$	296	$	-	$	-
Total liabilities	$	296	$	296	$	-	$	-

	Fair Value		Fair Value Measurements
	as of		Using Inputs Considered as
(in millions)	April 29, 2011		Level 1		Level 2		Level 3
Assets:
Corporate debt securities	$	1,961	$	-	$	1,944	$	17
Auction rate securities		133		-		-		133
Mortgage-backed securities		785		-		750		35
U.S. government and agency securities		2,756		1,453		1,303		-
Foreign government and agency securities		131		-		131		-
Certificates of deposit		119		-		119		-
Other asset-backed securities		349		-		343		6
Marketable equity securities		237		237		-		-
Exchange-traded funds		39		39		-		-
Derivative assets		130		21		109		-
Total assets	$	6,640	$	1,750	$	4,699	$	191
Liabilities:
Derivative liabilities	$	303	$	303	$	-	$	-
Total liabilities	$	303	$	303	$	-	$	-

Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Text Block]

Three Months Ended July 29, 2011
(in millions)	Total Level 3 Investments		Corporate debt securities		Auction rate securities		Mortgage-backed securities		Other asset-backed securities
Balance as of April 29, 2011	$	191	$	17	$	133	$	35	$	6
Total realized losses and other-than-temporary impairment losses included in earnings		(1)		-		-		-		(1)
Total unrealized gains/(losses) included in other comprehensive income		2		-		1		-		1
Settlements		(2)		-		-		(2)		-
Balance as of July 29, 2011	$	190	$	17	$	134	$	33	$	6
Three Months Ended July 30, 2010
(in millions)	Total Level 3 Investments		Corporate debt securities		Auction rate securities		Mortgage-backed securities		Other asset-backed securities
Balance as of April 30, 2010	$	213	$	16	$	142	$	39	$	16
Total realized losses and other-than-temporary impairment losses included in earnings		(2)		(1)		-		(1)		-
Total unrealized gains/(losses) included in other comprehensive income		(2)		2		(4)		-		-
Settlements		(11)		(1)		-		(1)		(9)
Balance as of July 30, 2010	$	198	$	16	$	138	$	37	$	7