Fair Value Measurements (Schedule of the Carrying Value of Assets Measured at Fair Value on a Recurring Basis) (Details) - Recurring - USD ($) $ in Millions | Jul. 01, 2016 | Apr. 01, 2016 |
Fair Value | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | $ 6,118 | $ 6,025 |
Fair Value | Cash | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 827 | 1,072 |
Fair Value | Non-negotiable certificates of deposit | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 145 | 1 |
Fair Value | Level 1 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 2,597 | 3,251 |
Fair Value | Level 1 | Money market | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 2,133 | 2,905 |
Fair Value | Level 1 | U.S. government securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 455 | 335 |
Fair Value | Level 1 | Marketable equity securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 9 | 11 |
Fair Value | Level 2 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 2,549 | 1,701 |
Fair Value | Level 2 | Corporate bonds | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 181 | 45 |
Fair Value | Level 2 | U.S. agency securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 871 | 526 |
Fair Value | Level 2 | Commercial paper | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 1,484 | 1,121 |
Fair Value | Level 2 | Negotiable certificates of deposit | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 13 | 9 |
Reported Value Measurement | Cash and Cash Equivalents | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 6,108 | 5,983 |
Reported Value Measurement | Cash and Cash Equivalents | Cash | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 827 | 1,072 |
Reported Value Measurement | Cash and Cash Equivalents | Non-negotiable certificates of deposit | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 144 | 0 |
Reported Value Measurement | Cash and Cash Equivalents | Level 1 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 2,588 | 3,215 |
Reported Value Measurement | Cash and Cash Equivalents | Level 1 | Money market | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 2,133 | 2,905 |
Reported Value Measurement | Cash and Cash Equivalents | Level 1 | U.S. government securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 455 | 310 |
Reported Value Measurement | Cash and Cash Equivalents | Level 1 | Marketable equity securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 0 | 0 |
Reported Value Measurement | Cash and Cash Equivalents | Level 2 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 2,549 | 1,696 |
Reported Value Measurement | Cash and Cash Equivalents | Level 2 | Corporate bonds | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 181 | 43 |
Reported Value Measurement | Cash and Cash Equivalents | Level 2 | U.S. agency securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 871 | 523 |
Reported Value Measurement | Cash and Cash Equivalents | Level 2 | Commercial paper | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 1,484 | 1,121 |
Reported Value Measurement | Cash and Cash Equivalents | Level 2 | Negotiable certificates of deposit | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 13 | 9 |
Reported Value Measurement | Short-term Investments | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 10 | 42 |
Reported Value Measurement | Short-term Investments | Cash | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 0 | 0 |
Reported Value Measurement | Short-term Investments | Non-negotiable certificates of deposit | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 1 | 1 |
Reported Value Measurement | Short-term Investments | Level 1 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 9 | 36 |
Reported Value Measurement | Short-term Investments | Level 1 | Money market | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 0 | 0 |
Reported Value Measurement | Short-term Investments | Level 1 | U.S. government securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 0 | 25 |
Reported Value Measurement | Short-term Investments | Level 1 | Marketable equity securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 9 | 11 |
Reported Value Measurement | Short-term Investments | Level 2 | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 0 | 5 |
Reported Value Measurement | Short-term Investments | Level 2 | Corporate bonds | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 0 | 2 |
Reported Value Measurement | Short-term Investments | Level 2 | U.S. agency securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 0 | 3 |
Reported Value Measurement | Short-term Investments | Level 2 | Commercial paper | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | 0 | 0 |
Reported Value Measurement | Short-term Investments | Level 2 | Negotiable certificates of deposit | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, fair value disclosure | $ 0 | $ 0 |