Retirement Benefit Plans (Tables)

6 Months Ended

Oct. 26, 2012

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Periodic Benefit Costs

	U.S. Pension Benefits				Non-U.S. Pension Benefits				Post-Retirement Benefits
	Three months ended				Three months ended				Three months ended
	October 26,		October 28,		October 26,		October 28,		October 26,		October 28,
(in millions)	2012		2011 (a)		2012		2011 (a)		2012		2011 (a)
Service cost	$	26	$	23	$	11	$	11	$	5	$	5
Interest cost		23		22		7		7		4		4
Expected return on plan assets		(32)		(30)		(8)		(9)		(4)		(4)
Amortization of net actuarial loss		18		11		2		1		1		1
Net periodic benefit cost	$	35	$	26	$	12	$	10	$	6	$	6
	U.S. Pension Benefits				Non-U.S. Pension Benefits				Post-Retirement Benefits
	Six months ended				Six months ended				Six months ended
	October 26,		October 28,		October 26,		October 28,		October 26,		October 28,
(in millions)	2012		2011 (a)		2012		2011 (a)		2012		2011 (a)
Service cost	$	52	$	46	$	22	$	22	$	10	$	10
Interest cost		46		44		14		14		8		8
Expected return on plan assets		(64)		(60)		(16)		(18)		(8)		(8)
Amortization of net actuarial loss		36		22		4		2		2		2
Net periodic benefit cost	$	70	$	52	$	24	$	20	$	12	$	12
(a) Components of the net periodic benefit cost for the three and six months ended October 28, 2011 include balances related to Physio-Control.