Retirement Benefit Plans (Tables)

6 Months Ended

Oct. 28, 2011

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Periodic Benefit Cost

	U.S. Pension Benefits				Non-U.S. Pension Benefits					Post-Retirement Benefits
	Three months ended				Three months ended					Three months ended
	October 28,		October 29,		October 28,		October 29,			October 28,		October 29,
(in millions)	2011		2010		2011		2010			2011		2010
Service cost	$	23	$	22	$	11	$	9		$	5	$	5
Interest cost		22		19		7		6			4		4
Expected return on plan assets		(30)		(26)		(9)		(6)			(4)		(3)
Amortization of net actuarial loss		11		8		1		1			1		1
Net periodic benefit cost	$	26	$	23	$	10	$	10		$	6	$	7
	U.S. Pension Benefits				Non-U.S. Pension Benefits					Post-Retirement Benefits
	Six months ended				Six months ended					Six months ended
	October 28,		October 29,		October 28,		October 29,			October 28,		October 29,
(in millions)	2011		2010		2011		2010			2011		2010
Service cost	$	46	$	44	$	22	$	18		$	10	$	10
Interest cost		44		38		14		12			8		8
Expected return on plan assets		(60)		(52)		(18)		(12)			(8)		(6)
Amortization of net actuarial loss		22		16		2		2			2		2
Net periodic benefit cost	$	52	$	46	$	20	$	20	$		12	$	14