Fair Value Measurements (Schedule Of The Carrying Value Of Assets Measured At Fair Value On A Recurring Basis) (Details) (USD $) In Millions, unless otherwise specified	Jan. 02, 2015	Mar. 28, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	$ 1,570	$ 2,420
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	1,503	2,380
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	67	40
Corporate bonds | Recurring
Short-term investments:
Short-term investments	270	120
Corporate bonds | Recurring | Level 1
Short-term investments:
Short-term investments	0	0
Corporate bonds | Recurring | Level 2
Short-term investments:
Short-term investments	270	120
U.S. government securities | Recurring
Short-term investments:
Short-term investments	299	95
U.S. government securities | Recurring | Level 1
Short-term investments:
Short-term investments	299	95
U.S. government securities | Recurring | Level 2
Short-term investments:
Short-term investments	0	0
U.S. agency securities | Recurring
Short-term investments:
Short-term investments	82	45
U.S. agency securities | Recurring | Level 1
Short-term investments:
Short-term investments	0	0
U.S. agency securities | Recurring | Level 2
Short-term investments:
Short-term investments	82	45
Commercial paper | Recurring
Short-term investments:
Short-term investments	221	24
Commercial paper | Recurring | Level 1
Short-term investments:
Short-term investments	0	0
Commercial paper | Recurring | Level 2
Short-term investments:
Short-term investments	221	24
Other investments | Recurring
Short-term investments:
Short-term investments	99	47
Other investments | Recurring | Level 1
Short-term investments:
Short-term investments	0	0
Other investments | Recurring | Level 2
Short-term investments:
Short-term investments	99	47
Marketable equity securities | Recurring
Short-term investments:
Short-term investments	5	6
Marketable equity securities | Recurring | Level 1
Short-term investments:
Short-term investments	5	6
Marketable equity securities | Recurring | Level 2
Short-term investments:
Short-term investments	$ 0	$ 0