Pension and Other Benefit Plans (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended			9 Months Ended		3 Months Ended		9 Months Ended		0 Months Ended
	Dec. 28, 2012	Dec. 28, 2012 Pension Plans, Defined Benefit [Member]	Dec. 28, 2012 Pension Plans, Defined Benefit [Member]	Dec. 28, 2012 Pension Plans, Defined Benefit [Member] US pension plans [Member]	Dec. 30, 2011 Pension Plans, Defined Benefit [Member] US pension plans [Member]	Dec. 28, 2012 Pension Plans, Defined Benefit [Member] US pension plans [Member]	Dec. 30, 2011 Pension Plans, Defined Benefit [Member] US pension plans [Member]	Dec. 28, 2012 Pension Plans, Defined Benefit [Member] Non-US pension plans [Member]	Sep. 28, 2012 Pension Plans, Defined Benefit [Member] Non-US pension plans [Member]	Dec. 30, 2011 Pension Plans, Defined Benefit [Member] Non-US pension plans [Member]	Dec. 28, 2012 Pension Plans, Defined Benefit [Member] Non-US pension plans [Member]	Dec. 30, 2011 Pension Plans, Defined Benefit [Member] Non-US pension plans [Member]	Dec. 28, 2012 Other Postretirement Benefit Plans, Defined Benefit [Member]	Dec. 30, 2011 Other Postretirement Benefit Plans, Defined Benefit [Member]	Dec. 28, 2012 Other Postretirement Benefit Plans, Defined Benefit [Member]	Dec. 30, 2011 Other Postretirement Benefit Plans, Defined Benefit [Member]	Dec. 31, 2012 Subsequent Event [Member]
Components of net periodic benefit cost [Abstract]
Service cost				$ 3	$ 3	$ 8	$ 7	$ 8		$ 6	$ 22	$ 20	$ 1	$ 0	$ 3	$ 2
Interest cost				39	41	117	123	34		31	94	95	3	2	9	8
Expected return on assets				(38)	(37)	(114)	(109)	(34)		(32)	(95)	(96)	(1)	0	(4)	(4)
Amortization of unrecognized net loss				10	9	31	26	5		4	15	12	3	2	10	6
Contractual termination benefit				0	0	0	0	1		0	7	0
Net periodic pension cost				14	16	42	47	14		9	43	31	6	4	18	12
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease)									(28)
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate								4.00%			4.00%
Defined Benefit Pension Plans Contributions By Employer		93	210
Defined Benefit Pension Plans Estimated Total Employer Contributions Current Fiscal Year		658	658
Contributions by Employer													0		4		400
Estimated Employer Contributions in Current Fiscal Year													8		8
Prescription Drug Subsidy Receipts Current Fiscal Year	$ 1