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Financial Instruments and Fair Value - Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $)
In Millions, unless otherwise specified
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Oct. 26, 2012
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
$ 4,371.3 |
| Foreign currency contracts |
1.8 |
|
Corporate Bonds
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
2,978.3 |
|
U.S. Treasury And Government Debt Securities
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
519.7 |
|
Commercial Paper
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
85.0 |
|
Certificates of Deposit
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
222.9 |
|
Municipal Bonds
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
8.3 |
|
Money Market Funds
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
481.6 |
|
Auction Rate Securities
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
46.5 |
|
Equity Funds
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
26.1 |
|
Foreign Exchange Contract
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Foreign currency contracts |
2.9 |
|
Fair Value, Inputs, Level 1
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
711.3 |
| Foreign currency contracts |
0 |
|
Fair Value, Inputs, Level 1 | Corporate Bonds
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
0 |
|
Fair Value, Inputs, Level 1 | U.S. Treasury And Government Debt Securities
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
203.6 |
|
Fair Value, Inputs, Level 1 | Commercial Paper
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
0 |
|
Fair Value, Inputs, Level 1 | Certificates of Deposit
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
0 |
|
Fair Value, Inputs, Level 1 | Municipal Bonds
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
0 |
|
Fair Value, Inputs, Level 1 | Money Market Funds
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
481.6 |
|
Fair Value, Inputs, Level 1 | Auction Rate Securities
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
0 |
|
Fair Value, Inputs, Level 1 | Equity Funds
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
26.1 |
|
Fair Value, Inputs, Level 1 | Foreign Exchange Contract
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Foreign currency contracts |
0 |
|
Fair Value, Inputs, Level 2
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
3,613.5 |
| Foreign currency contracts |
1.8 |
|
Fair Value, Inputs, Level 2 | Corporate Bonds
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
2,978.3 |
|
Fair Value, Inputs, Level 2 | U.S. Treasury And Government Debt Securities
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
316.1 |
|
Fair Value, Inputs, Level 2 | Commercial Paper
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
85.0 |
|
Fair Value, Inputs, Level 2 | Certificates of Deposit
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
222.9 |
|
Fair Value, Inputs, Level 2 | Municipal Bonds
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
8.3 |
|
Fair Value, Inputs, Level 2 | Money Market Funds
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
0 |
|
Fair Value, Inputs, Level 2 | Auction Rate Securities
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
0 |
|
Fair Value, Inputs, Level 2 | Equity Funds
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
0 |
|
Fair Value, Inputs, Level 2 | Foreign Exchange Contract
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Foreign currency contracts |
2.9 |
|
Fair Value, Inputs, Level 3
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
46.5 |
| Foreign currency contracts |
0 |
|
Fair Value, Inputs, Level 3 | Corporate Bonds
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
0 |
|
Fair Value, Inputs, Level 3 | U.S. Treasury And Government Debt Securities
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
0 |
|
Fair Value, Inputs, Level 3 | Commercial Paper
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
0 |
|
Fair Value, Inputs, Level 3 | Certificates of Deposit
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
0 |
|
Fair Value, Inputs, Level 3 | Municipal Bonds
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
0 |
|
Fair Value, Inputs, Level 3 | Money Market Funds
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
0 |
|
Fair Value, Inputs, Level 3 | Auction Rate Securities
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
46.5 |
|
Fair Value, Inputs, Level 3 | Equity Funds
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Assets |
0 |
|
Fair Value, Inputs, Level 3 | Foreign Exchange Contract
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
| Foreign currency contracts |
$ 0 |