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Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Sep. 30, 2017 | Sep. 24, 2016
--- | --- | ---
Deferred tax assets: |  |
Accrued liabilities and other reserves | $ 4,019 | $ 4,135
Basis of capital assets | 1,230 | 2,107
Deferred revenue | 1,521 | 1,717
Deferred cost sharing | 667 | 667
Share-based compensation | 703 | 601
Other | 834 | 788
Total deferred tax assets, net of valuation allowance of $0 | 8,974 | 10,015
Deferred tax liabilities: |  |
Unremitted earnings of foreign subsidiaries | 36,355 | 31,436
Other | 207 | 485
Total deferred tax liabilities | 36,562 | 31,921
Net deferred tax liabilities | (27,588) | (21,906)
Deferred tax assets, valuation allowance | $ 0 | $ 0

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