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Investments (Tables)
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3 Months Ended |
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Oct. 26, 2013
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| Investments [Abstract] |
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| Schedule of Available-for-sale Securities Reconciliation |
The following tables summarize the Company’s available-for-sale investments (in millions): | | | | | | | | | | | | | | | | | October 26, 2013 | Amortized Cost | | Gross Unrealized Gains | | Gross Unrealized Losses | | Fair Value | Fixed income securities: | | | | | | | | U.S. government securities | $ | 28,603 |
| | $ | 37 |
| | $ | (2 | ) | | $ | 28,638 |
| U.S. government agency securities | 2,394 |
| | 5 |
| | — |
| | 2,399 |
| Non-U.S. government and agency securities | 907 |
| | 3 |
| | (1 | ) | | 909 |
| Corporate debt securities | 7,974 |
| | 73 |
| | (21 | ) | | 8,026 |
| U.S. agency mortgage-backed securities | 456 |
| | 5 |
| | — |
| | 461 |
| Total fixed income securities | 40,334 |
| | 123 |
| | (24 | ) | | 40,433 |
| Publicly traded equity securities | 1,820 |
| | 696 |
| | (2 | ) | | 2,514 |
| Total | $ | 42,154 |
| | $ | 819 |
| | $ | (26 | ) | | $ | 42,947 |
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| | | | | | | | | | | | | | | | | July 27, 2013 | Amortized Cost | | Gross Unrealized Gains | | Gross Unrealized Losses | | Fair Value | Fixed income securities: | | | | | | | | U.S. government securities | $ | 27,814 |
| | $ | 22 |
| | $ | (13 | ) | | $ | 27,823 |
| U.S. government agency securities | 3,083 |
| | 7 |
| | (1 | ) | | 3,089 |
| Non-U.S. government and agency securities | 1,094 |
| | 3 |
| | (2 | ) | | 1,095 |
| Corporate debt securities | 7,876 |
| | 55 |
| | (50 | ) | | 7,881 |
| Total fixed income securities | 39,867 |
| | 87 |
| | (66 | ) | | 39,888 |
| Publicly traded equity securities | 2,063 |
| | 738 |
| | (4 | ) | | 2,797 |
| Total | $ | 41,930 |
| | $ | 825 |
| | $ | (70 | ) | | $ | 42,685 |
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| Schedule of Realized Gain (Loss) |
The following table presents the gross realized gains and gross realized losses related to the Company’s available-for-sale investments (in millions): | | | | | | | | | | | | Three Months Ended | | | October 26,
2013 | | October 27,
2012 | Gross realized gains | | $ | 95 |
| | $ | 63 |
| Gross realized losses | | (12 | ) | | (36 | ) | Total | | $ | 83 |
| | $ | 27 |
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The following table presents the realized net gains (losses) related to the Company’s available-for-sale investments by security type (in millions): | | | | | | | | | | | | Three Months Ended | | | October 26,
2013 | | October 27,
2012 | Net gains (losses) on investments in publicly traded equity securities | | $ | 75 |
| | $ | 10 |
| Net gains on investments in fixed income securities | | 8 |
| | 17 |
| Total | | $ | 83 |
| | $ | 27 |
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| Schedule of Unrealized Loss on Investments |
The following tables present the breakdown of the available-for-sale investments with gross unrealized losses and the duration that those losses had been unrealized at October 26, 2013 and July 27, 2013 (in millions): | | | | | | | | | | | | | | | | | | | | | | | | | | UNREALIZED LOSSES LESS THAN 12 MONTHS | | UNREALIZED LOSSES 12 MONTHS OR GREATER | | TOTAL | October 26, 2013 | Fair Value | | Gross Unrealized Losses | | Fair Value | | Gross Unrealized Losses | | Fair Value | | Gross Unrealized Losses | Fixed income securities: | | | | | | | | | | | | U.S. government securities | $ | 3,303 |
| | $ | (2 | ) | | $ | 8 |
| | $ | — |
| | $ | 3,311 |
| | $ | (2 | ) | U.S. government agency securities | 201 |
| | — |
| | — |
| | — |
| | 201 |
| | — |
| Non-U.S. government and agency securities | 208 |
| | (1 | ) | | 2 |
| | — |
| | 210 |
| | (1 | ) | Corporate debt securities | 2,357 |
| | (21 | ) | | 13 |
| | — |
| | 2,370 |
| | (21 | ) | U.S. agency mortgage-backed securities | 32 |
| | — |
| | — |
| | — |
| | 32 |
| | — |
| Total fixed income securities | 6,101 |
| | (24 | ) | | 23 |
| | — |
| | 6,124 |
| | (24 | ) | Publicly traded equity securities | 45 |
| | (2 | ) | | — |
| | — |
| | 45 |
| | (2 | ) | Total | $ | 6,146 |
| | $ | (26 | ) | | $ | 23 |
| | $ | — |
| | $ | 6,169 |
| | $ | (26 | ) |
| | | | | | | | | | | | | | | | | | | | | | | | | | UNREALIZED LOSSES LESS THAN 12 MONTHS | | UNREALIZED LOSSES 12 MONTHS OR GREATER | | TOTAL | July 27, 2013 | Fair Value | | Gross Unrealized Losses | | Fair Value | | Gross Unrealized Losses | | Fair Value | | Gross Unrealized Losses | Fixed income securities: | | | | | | | | | | | | U.S. government securities | $ | 7,865 |
| | $ | (13 | ) | | $ | — |
| | $ | — |
| | $ | 7,865 |
| | $ | (13 | ) | U.S. government agency securities | 294 |
| | (1 | ) | | — |
| | — |
| | 294 |
| | (1 | ) | Non-U.S. government and agency securities | 432 |
| | (2 | ) | | — |
| | — |
| | 432 |
| | (2 | ) | Corporate debt securities | 3,704 |
| | (50 | ) | | 4 |
| | — |
| | 3,708 |
| | (50 | ) | Total fixed income securities | 12,295 |
| | (66 | ) | | 4 |
| | — |
| | 12,299 |
| | (66 | ) | Publicly traded equity securities | 278 |
| | (4 | ) | | — |
| | — |
| | 278 |
| | (4 | ) | Total | $ | 12,573 |
| | $ | (70 | ) | | $ | 4 |
| | $ | — |
| | $ | 12,577 |
| | $ | (70 | ) |
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| Investments Classified by Contractual Maturity Date |
The following table summarizes the maturities of the Company’s fixed income securities at October 26, 2013 (in millions): | | | | | | | | | | Amortized Cost | | Fair Value | Less than 1 year | $ | 15,286 |
| | $ | 15,297 |
| Due in 1 to 2 years | 12,310 |
| | 12,346 |
| Due in 2 to 5 years | 12,160 |
| | 12,204 |
| Due after 5 years | 578 |
| | 586 |
| Total | $ | 40,334 |
| | $ | 40,433 |
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