The following table presents the breakdown between current and noncurrent net deferred tax assets (in millions): | | | | | | | | | | July 26, 2014 | | July 27, 2013 | Deferred tax assets—current | $ | 2,808 |
| | $ | 2,616 |
| Deferred tax liabilities—current | (134 | ) | | (114 | ) | Deferred tax assets—noncurrent | 1,700 |
| | 1,539 |
| Deferred tax liabilities—noncurrent | (369 | ) | | (399 | ) | Total net deferred tax assets | $ | 4,005 |
| | $ | 3,642 |
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The components of the deferred tax assets and liabilities are as follows (in millions): | | | | | | | | | | July 26, 2014 | | July 27, 2013 | ASSETS | | | | Allowance for doubtful accounts and returns | $ | 464 |
| | $ | 390 |
| Sales-type and direct-financing leases | 231 |
| | 167 |
| Inventory write-downs and capitalization | 307 |
| | 216 |
| Investment provisions | 212 |
| | 214 |
| IPR&D, goodwill, and purchased intangible assets | 135 |
| | 123 |
| Deferred revenue | 1,689 |
| | 1,624 |
| Credits and net operating loss carryforwards | 796 |
| | 681 |
| Share-based compensation expense | 661 |
| | 783 |
| Accrued compensation | 496 |
| | 486 |
| Other | 676 |
| | 560 |
| Gross deferred tax assets | 5,667 |
| | 5,244 |
| Valuation allowance | (114 | ) | | (98 | ) | Total deferred tax assets | 5,553 |
| | 5,146 |
| LIABILITIES | | | | Purchased intangible assets | (1,229 | ) | | (1,101 | ) | Depreciation | (48 | ) | | (169 | ) | Unrealized gains on investments | (245 | ) | | (211 | ) | Other | (26 | ) | | (23 | ) | Total deferred tax liabilities | (1,548 | ) | | (1,504 | ) | Total net deferred tax assets | $ | 4,005 |
| | $ | 3,642 |
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