| Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] | 
Assets and liabilities measured and recorded at fair value on a recurring basis at the end of each period were as follows:
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|   |   | December 26, 2015 |   | December 27, 2014 |  
|   |   | Fair Value Measured and Recorded at Reporting Date Using |   | Total |   | Fair Value Measured and Recorded at Reporting Date Using |   | Total |  
| (In Millions) |   | Level 1 |   | Level 2 |   | Level 3 |   | Level 1 |   | Level 2 |   | Level 3 |   |  
| Assets |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Cash equivalents: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Corporate debt |   | $ | — | 
 |   | $ | 1,829 | 
 |   | $ | — | 
 |   | $ | 1,829 | 
 |   | $ | — | 
 |   | $ | 48 | 
 |   | $ | — | 
 |   | $ | 48 | 
 |  
| Financial institution instruments |   | 8,238 | 
 |   | 1,277 | 
 |   | — | 
 |   | 9,515 | 
 |   | 321 | 
 |   | 1,119 | 
 |   | — | 
 |   | 1,440 | 
 |  
| Government debt |   | — | 
 |   | 130 | 
 |   | — | 
 |   | 130 | 
 |   | — | 
 |   | — | 
 |   | — | 
 |   | — | 
 |  
| Reverse repurchase agreements |   | — | 
 |   | 2,368 | 
 |   | — | 
 |   | 2,368 | 
 |   | — | 
 |   | 268 | 
 |   | — | 
 |   | 268 | 
 |  
| Short-term investments: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Corporate debt |   | 336 | 
 |   | 764 | 
 |   | 20 | 
 |   | 1,120 | 
 |   | 363 | 
 |   | 412 | 
 |   | 31 | 
 |   | 806 | 
 |  
| Financial institution instruments |   | 145 | 
 |   | 927 | 
 |   | — | 
 |   | 1,072 | 
 |   | 149 | 
 |   | 1,050 | 
 |   | — | 
 |   | 1,199 | 
 |  
| Government debt |   | 65 | 
 |   | 425 | 
 |   | — | 
 |   | 490 | 
 |   | 252 | 
 |   | 173 | 
 |   | — | 
 |   | 425 | 
 |  
| Trading assets: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Asset-backed securities |   | — | 
 |   | 275 | 
 |   | 94 | 
 |   | 369 | 
 |   | — | 
 |   | 766 | 
 |   | 58 | 
 |   | 824 | 
 |  
| Corporate debt |   | 1,744 | 
 |   | 564 | 
 |   | — | 
 |   | 2,308 | 
 |   | 2,625 | 
 |   | 339 | 
 |   | — | 
 |   | 2,964 | 
 |  
| Financial institution instruments |   | 930 | 
 |   | 701 | 
 |   | — | 
 |   | 1,631 | 
 |   | 1,146 | 
 |   | 613 | 
 |   | — | 
 |   | 1,759 | 
 |  
| Government debt |   | 1,107 | 
 |   | 1,908 | 
 |   | — | 
 |   | 3,015 | 
 |   | 1,295 | 
 |   | 2,221 | 
 |   | — | 
 |   | 3,516 | 
 |  
| Other current assets: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Derivative assets |   | 32 | 
 |   | 412 | 
 |   | 1 | 
 |   | 445 | 
 |   | — | 
 |   | 559 | 
 |   | 2 | 
 |   | 561 | 
 |  
| Loans receivable |   | — | 
 |   | 137 | 
 |   | — | 
 |   | 137 | 
 |   | — | 
 |   | 505 | 
 |   | — | 
 |   | 505 | 
 |  
| Marketable equity securities |   | 5,891 | 
 |   | 69 | 
 |   | — | 
 |   | 5,960 | 
 |   | 7,097 | 
 |   | — | 
 |   | — | 
 |   | 7,097 | 
 |  
| Other long-term investments: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Asset-backed securities |   | — | 
 |   | — | 
 |   | 4 | 
 |   | 4 | 
 |   | — | 
 |   | 2 | 
 |   | 4 | 
 |   | 6 | 
 |  
| Corporate debt |   | 407 | 
 |   | 801 | 
 |   | — | 
 |   | 1,208 | 
 |   | 453 | 
 |   | 728 | 
 |   | 13 | 
 |   | 1,194 | 
 |  
| Financial institution instruments |   | 171 | 
 |   | 381 | 
 |   | — | 
 |   | 552 | 
 |   | 189 | 
 |   | 319 | 
 |   | — | 
 |   | 508 | 
 |  
| Government debt |   | 79 | 
 |   | 48 | 
 |   | — | 
 |   | 127 | 
 |   | 75 | 
 |   | 240 | 
 |   | — | 
 |   | 315 | 
 |  
| Other long-term assets: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Derivative assets |   | — | 
 |   | 30 | 
 |   | 10 | 
 |   | 40 | 
 |   | — | 
 |   | 35 | 
 |   | 22 | 
 |   | 57 | 
 |  
| Loans receivable |   | — | 
 |   | 342 | 
 |   | — | 
 |   | 342 | 
 |   | — | 
 |   | 216 | 
 |   | — | 
 |   | 216 | 
 |  
| Total assets measured and recorded at fair value |   | 19,145 | 
 |   | 13,388 | 
 |   | 129 | 
 |   | 32,662 | 
 |   | 13,965 | 
 |   | 9,613 | 
 |   | 130 | 
 |   | 23,708 | 
 |  
| Liabilities |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Other accrued liabilities: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Derivative liabilities |   | 2 | 
 |   | 210 | 
 |   | — | 
 |   | 212 | 
 |   | — | 
 |   | 563 | 
 |   | — | 
 |   | 563 | 
 |  
| Other long-term liabilities: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Derivative liabilities |   | — | 
 |   | 33 | 
 |   | — | 
 |   | 33 | 
 |   | — | 
 |   | 17 | 
 |   | — | 
 |   | 17 | 
 |  
| Total liabilities measured and recorded at fair value |   | $ | 2 | 
 |   | $ | 243 | 
 |   | $ | — | 
 |   | $ | 245 | 
 |   | $ | — | 
 |   | $ | 580 | 
 |   | $ | — | 
 |   | $ | 580 | 
 |  | 
| Financial Instruments Not Recorded At Fair Value On Recurring Basis [Table Text Block] | 
The carrying amounts and fair values of financial instruments not recorded at fair value on a recurring basis at the end of each period were as follows:
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|   |   | December 26, 2015 |  
|   |   | Carrying Amount |   | Fair Value Measured Using |   | Fair Value |  
| (In Millions) |   | Level 1 |   | Level 2 |   | Level 3 |   |  
| Grants receivable |   | $ | 593 | 
 |   | $ | — | 
 |   | $ | 600 | 
 |   | $ | — | 
 |   | $ | 600 | 
 |  
| Loans receivable |   | $ | 315 | 
 |   | $ | — | 
 |   | $ | 315 | 
 |   | $ | — | 
 |   | $ | 315 | 
 |  
| Non-marketable cost method investments |   | $ | 2,933 | 
 |   | $ | — | 
 |   | $ | — | 
 |   | $ | 3,904 | 
 |   | $ | 3,904 | 
 |  
| Reverse repurchase agreements |   | $ | 1,000 | 
 |   | $ | — | 
 |   | $ | 1,000 | 
 |   | $ | — | 
 |   | $ | 1,000 | 
 |  
| Short-term debt |   | $ | 2,593 | 
 |   | $ | 1,513 | 
 |   | $ | 1,563 | 
 |   | $ | — | 
 |   | $ | 3,076 | 
 |  
| Long-term debt |   | $ | 20,036 | 
 |   | $ | 14,058 | 
 |   | $ | 6,835 | 
 |   | $ | — | 
 |   | $ | 20,893 | 
 |  
| NVIDIA Corporation cross-license agreement liability |   | $ | 199 | 
 |   | $ | — | 
 |   | $ | 200 | 
 |   | $ | — | 
 |   | $ | 200 | 
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|   |   | December 27, 2014 |  
|   |   | Carrying Amount |   | Fair Value Measured Using |   | Fair Value |  
| (In Millions) |   | Level 1 |   | Level 2 |   | Level 3 |   |  
| Grants receivable |   | $ | 676 | 
 |   | $ | — | 
 |   | $ | 679 | 
 |   | $ | — | 
 |   | $ | 679 | 
 |  
| Loans receivable |   | $ | 250 | 
 |   | $ | — | 
 |   | $ | 250 | 
 |   | $ | — | 
 |   | $ | 250 | 
 |  
| Non-marketable cost method investments |   | $ | 1,769 | 
 |   | $ | — | 
 |   | $ | — | 
 |   | $ | 2,599 | 
 |   | $ | 2,599 | 
 |  
| Reverse repurchase agreements |   | $ | 450 | 
 |   | $ | — | 
 |   | $ | 450 | 
 |   | $ | — | 
 |   | $ | 450 | 
 |  
| Short-term debt |   | $ | 1,580 | 
 |   | $ | — | 
 |   | $ | 2,145 | 
 |   | $ | — | 
 |   | $ | 2,145 | 
 |  
| Long-term debt |   | $ | 12,059 | 
 |   | $ | 11,467 | 
 |   | $ | 1,309 | 
 |   | $ | — | 
 |   | $ | 12,776 | 
 |  
| NVIDIA Corporation cross-license agreement liability |   | $ | 395 | 
 |   | $ | — | 
 |   | $ | 399 | 
 |   | $ | — | 
 |   | $ | 399 | 
 |  |