Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			6 Months Ended
	Sep. 28, 2013		Sep. 29, 2012	Sep. 28, 2013		Sep. 29, 2012
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax, Beginning Balance	$ 71			$ 73
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	50	[1]		48	[1]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax	0			0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	50		42	48		1
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax, Ending Balance	121			121
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax [Abstract]
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Designated Hedges, Beginning Balance	18			23
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(18)	[1]		(19)	[1]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	0			(4)
Net gains (losses) on derivative financial instruments	(18)		(9)	(23)		(3)
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Designated Hedges, Ending Balance	0			0
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Beginning Balance				5
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax				(4)
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecurites				(1)
Net gains (losses) on available-for-sale investments	0		3	(5)		3
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Ending Balance	0			0
Defined Benefit Plan Accumulated Other Comprehensive Income Loss After Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax, Beginning Balance	(7)			(7)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax	0	[1]		0	[1]
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, before Reclassification Adjustments, Tax	0			0
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	0			0
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax, Ending Balance	(7)			(7)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	82			94
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	32	[1]		25	[1]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0			(5)
Other Comprehensive Income (Loss), Net of Tax	32		36	20		1
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	$ 114			$ 114

[1] Amounts are net of taxes, which are immaterial for all periods presented.