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Balance Sheet Details (Tables) | 12 Months Ended
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Apr. 24, 2015
Statement Of Financial Position [Abstract] |
Cash and Cash Equivalents | Cash and cash equivalents (in millions):
|  | April 24, 2015 |  |  | April 25, 2014 |
Cash |  | $ | 1,666.3 |  |  | $ | 2,174.0 |
Cash equivalents |  |  | 255.2 |  |  |  | 117.0 |
Cash and cash equivalents |  | $ | 1,921.5 |  |  | $ | 2,291.0 |
Inventories | Inventories (in millions):
|  | April 24, 2015 |  |  | April 25, 2014 |
Purchased components |  | $ | 36.2 |  |  | $ | 17.6 |
Finished goods |  |  | 110.3 |  |  |  | 104.8 |
Inventories |  | $ | 146.5 |  |  | $ | 122.4 |
Other Current Assets | Other current assets (in millions):
|  | April 24, 2015 |  |  | April 25, 2014 |
Prepaid expenses and other current assets |  | $ | 268.3 |  |  | $ | 219.4 |
Deferred tax assets |  |  | 253.5 |  |  |  | 270.3 |
Other current assets |  | $ | 521.8 |  |  | $ | 489.7 |
Property and Equipment, Net | Property and equipment, net (in millions):
|  | April 24, 2015 |  |  | April 25, 2014 |
Land |  | $ | 265.5 |  |  | $ | 265.7 |
Buildings and improvements |  |  | 607.0 |  |  |  | 541.7 |
Leasehold improvements |  |  | 106.6 |  |  |  | 102.9 |
Computer, production, engineering and other equipment |  |  | 753.7 |  |  |  | 753.8 |
Computer software |  |  | 371.9 |  |  |  | 369.1 |
Furniture and fixtures |  |  | 85.4 |  |  |  | 86.4 |
Construction-in-progress |  |  | 33.0 |  |  |  | 72.9 |
|  |  | 2,223.1 |  |  |  | 2,192.5 |
Accumulated depreciation and amortization |  |  | (1,193.2 | ) |  |  | (1,083.7 | )
Property and equipment, net |  | $ | 1,029.9 |  |  | $ | 1,108.8 |
Computer Software, Net Book Value | The net book value of computer software, which includes capitalized internal-use software development costs, is summarized below (in millions):
|  | April 24, 2015 |  |  | April 25, 2014 |
Computer software |  | $ | 58.5 |  |  | $ | 103.5 |
Depreciation and Amortization Expense | Depreciation and amortization expense related to property and equipment, net is summarized below (in millions):
|  | Year Ended |
|  | April 24, 2015 |  |  | April 25, 2014 |  |  | April 26, 2013 |
Depreciation and amortization expense |  | $ | 243.5 |  |  | $ | 275.0 |  |  | $ | 258.8 |
Computer Software, Amortization Expense | Included in depreciation and amortization expense above is amortization related to computer software, as summarized below (in millions):
|  | Year Ended |
|  | April 24, 2015 |  |  | April 25, 2014 |  |  | April 26, 2013 |
Computer software amortization expense |  | $ | 84.6 |  |  | $ | 74.4 |  |  | $ | 76.7 |
Other Non-Current Assets | Other non-current assets (in millions):
|  | April 24, 2015 |  |  | April 25, 2014 |
Auction rate securities |  | $ | — |  |  | $ | 36.0 |
Deferred tax assets |  |  | 255.9 |  |  |  | 245.0 |
Other assets |  |  | 225.1 |  |  |  | 243.1 |
Other non-current assets |  | $ | 481.0 |  |  | $ | 524.1 |
Accrued Expenses | Accrued expenses (in millions):
|  | April 24, 2015 |  |  | April 25, 2014 |
Accrued compensation and benefits |  | $ | 358.8 |  |  | $ | 407.8 |
Product warranty liability |  |  | 57.8 |  |  |  | 73.0 |
Other current liabilities |  |  | 284.8 |  |  |  | 313.0 |
Accrued expenses |  | $ | 701.4 |  |  | $ | 793.8 |
Product Warranty Liabilities | The following tables summarize the activity related to product warranty liabilities and their balances as reported in our consolidated balance sheets (in millions):
|  | Year Ended |
|  | April 24, 2015 |  |  | April 25, 2014 |
Balance at beginning of year |  | $ | 110.0 |  |  | $ | 117.2 |
Expense accrued during the year |  |  | 35.2 |  |  |  | 70.2 |
Warranty costs incurred |  |  | (59.5 | ) |  |  | (77.4 | )
Balance at end of year |  | $ | 85.7 |  |  | $ | 110.0 |
|  | April 24, 2015 |  |  | April 25, 2014 |
Accrued expenses |  | $ | 57.8 |  |  | $ | 73.0 |
Other long-term liabilities |  |  | 27.9 |  |  |  | 37.0 |
Total warranty liabilities |  | $ | 85.7 |  |  | $ | 110.0 |
Deferred Revenue | Short-term and long-term deferred revenue (in millions):
|  | April 24, 2015 |  |  | April 25, 2014 |
Product |  | $ | 17.4 |  |  | $ | 23.4 |
Services |  |  | 3,179.8 |  |  |  | 3,076.8 |
Total |  | $ | 3,197.2 |  |  | $ | 3,100.2 |
Reported as: |  |  |  |  |  |  |  |
Short-term |  | $ | 1,724.2 |  |  | $ | 1,653.8 |
Long-term |  |  | 1,473.0 |  |  |  | 1,446.4 |
Total |  | $ | 3,197.2 |  |  | $ | 3,100.2 |

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