Pension and Other Post-Retirement Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Oct. 02, 2015	Jul. 03, 2015	Oct. 03, 2014	Jul. 04, 2014	Oct. 02, 2015	Oct. 03, 2014	Apr. 30, 2014	Mar. 28, 2014
Components of net periodic benefit cost [Abstract]
Curtailment loss				$ 2
Benefit obligation discount rate							4.14%	4.23%
Benefit Obligation, period increase (decrease)				$ 1
US pension plans
Components of net periodic benefit cost [Abstract]
Service cost	$ 1		$ 1		$ 2	$ 2
Interest cost	32		38		64	76
Expected return on assets	(54)		(60)		(108)	(121)
Amortization of transition obligation	0		0		0	0
Amortization of prior service (credit)	0		0		0	0
Recognition of actuarial losses					0	1
Contractual termination benefits	0		0		0	0
Settlement loss					0	2
Net periodic pension cost	(21)		(21)		(42)	(40)
Non-US pension plans
Components of net periodic benefit cost [Abstract]
Service cost	7		6		13	12
Interest cost	23		30		46	61
Expected return on assets	(45)		(47)		(90)	(94)
Amortization of transition obligation	0		1		0	1
Amortization of prior service (credit)	(2)		(4)		(5)	(6)
Recognition of actuarial losses					0	0
Contractual termination benefits	0		(7)		0	(7)
Settlement loss					0	0
Net periodic pension cost	(17)		(21)		(36)	(33)
Pension Plan
Components of net periodic benefit cost [Abstract]
Defined Obligation, settlement	3
Contributions by employer		$ 6			19
Expected company contributions for remainder of fiscal year					42
Other Postretirement Benefit Plan
Components of net periodic benefit cost [Abstract]
Service cost	0		1		0	2
Interest cost	1		2		2	4
Expected return on assets	(1)		(2)		(3)	(3)
Amortization of prior service (credit)	(7)		0		(13)	(1)
Net periodic pension cost	(7)		$ 1		(14)	$ 2
Contributions by employer	$ 0				1
Expected company contributions for remainder of fiscal year					$ 1