Stock-Based Compensation (Details) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended				3 Months Ended
	Oct. 03, 2014 Performance Based Restricted Stock	Sep. 27, 2013 Performance Based Restricted Stock	Oct. 03, 2014 Restricted Stock Units (RSUs)	Sep. 27, 2013 Restricted Stock Units (RSUs)	Oct. 03, 2014 Chief Executive Officer Performance Based Restricted Stock	Oct. 03, 2014 Chief Executive Officer Restricted Stock Units (RSUs) installment
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted					344,717	147,736
Fair value of awards granted	$ 44	$ 33	$ 267	$ 63	$ 11
Performance measurement period ending 2016					2 years
Performance measurement period ending 2017					3 years
Vesting, number of installments						3