| 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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   | 
   | 
September 27, 2014  | 
   | 
December 28, 2013  | 
 
   | 
   | 
Fair Value Measured and Recorded at Reporting Date Using  | 
   | 
   | 
   | 
Fair Value Measured and Recorded at Reporting Date Using  | 
   | 
   | 
 
(In Millions)  | 
   | 
Level 1  | 
   | 
Level 2  | 
   | 
Level 3  | 
   | 
Total  | 
   | 
Level 1  | 
   | 
Level 2  | 
   | 
Level 3  | 
   | 
Total  | 
 
Assets  | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
Cash equivalents:  | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
Corporate debt  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
967  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
967  | 
 
  | 
   | 
$  | 
154  | 
 
  | 
   | 
$  | 
1,920  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
2,074  | 
 
  | 
 
Financial institution instruments  | 
   | 
230  | 
 
  | 
   | 
1,079  | 
 
  | 
   | 
—  | 
 
  | 
   | 
1,309  | 
 
  | 
   | 
887  | 
 
  | 
   | 
1,190  | 
 
  | 
   | 
—  | 
 
  | 
   | 
2,077  | 
 
  | 
 
Government debt  | 
   | 
—  | 
 
  | 
   | 
23  | 
 
  | 
   | 
—  | 
 
  | 
   | 
23  | 
 
  | 
   | 
—  | 
 
  | 
   | 
269  | 
 
  | 
   | 
—  | 
 
  | 
   | 
269  | 
 
  | 
 
Reverse repurchase agreements  | 
   | 
—  | 
 
  | 
   | 
268  | 
 
  | 
   | 
—  | 
 
  | 
   | 
268  | 
 
  | 
   | 
—  | 
 
  | 
   | 
400  | 
 
  | 
   | 
—  | 
 
  | 
   | 
400  | 
 
  | 
 
Short-term investments:  | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
Corporate debt  | 
   | 
194  | 
 
  | 
   | 
489  | 
 
  | 
   | 
29  | 
 
  | 
   | 
712  | 
 
  | 
   | 
274  | 
 
  | 
   | 
1,374  | 
 
  | 
   | 
19  | 
 
  | 
   | 
1,667  | 
 
  | 
 
Financial institution instruments  | 
   | 
84  | 
 
  | 
   | 
1,910  | 
 
  | 
   | 
—  | 
 
  | 
   | 
1,994  | 
 
  | 
   | 
194  | 
 
  | 
   | 
2,895  | 
 
  | 
   | 
—  | 
 
  | 
   | 
3,089  | 
 
  | 
 
Government debt  | 
   | 
323  | 
 
  | 
   | 
422  | 
 
  | 
   | 
—  | 
 
  | 
   | 
745  | 
 
  | 
   | 
183  | 
 
  | 
   | 
1,033  | 
 
  | 
   | 
—  | 
 
  | 
   | 
1,216  | 
 
  | 
 
Trading assets:  | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
Asset-backed securities  | 
   | 
—  | 
 
  | 
   | 
831  | 
 
  | 
   | 
66  | 
 
  | 
   | 
897  | 
 
  | 
   | 
—  | 
 
  | 
   | 
684  | 
 
  | 
   | 
4  | 
 
  | 
   | 
688  | 
 
  | 
 
Corporate debt  | 
   | 
2,580  | 
 
  | 
   | 
442  | 
 
  | 
   | 
—  | 
 
  | 
   | 
3,022  | 
 
  | 
   | 
2,161  | 
 
  | 
   | 
628  | 
 
  | 
   | 
—  | 
 
  | 
   | 
2,789  | 
 
  | 
 
Financial institution instruments  | 
   | 
1,113  | 
 
  | 
   | 
593  | 
 
  | 
   | 
—  | 
 
  | 
   | 
1,706  | 
 
  | 
   | 
1,188  | 
 
  | 
   | 
418  | 
 
  | 
   | 
—  | 
 
  | 
   | 
1,606  | 
 
  | 
 
Government debt  | 
   | 
1,338  | 
 
  | 
   | 
2,037  | 
 
  | 
   | 
—  | 
 
  | 
   | 
3,375  | 
 
  | 
   | 
1,625  | 
 
  | 
   | 
1,733  | 
 
  | 
   | 
—  | 
 
  | 
   | 
3,358  | 
 
  | 
 
Other current assets:  | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
Derivative assets  | 
   | 
—  | 
 
  | 
   | 
306  | 
 
  | 
   | 
—  | 
 
  | 
   | 
306  | 
 
  | 
   | 
48  | 
 
  | 
   | 
309  | 
 
  | 
   | 
—  | 
 
  | 
   | 
357  | 
 
  | 
 
Loans receivable  | 
   | 
—  | 
 
  | 
   | 
596  | 
 
  | 
   | 
—  | 
 
  | 
   | 
596  | 
 
  | 
   | 
—  | 
 
  | 
   | 
103  | 
 
  | 
   | 
—  | 
 
  | 
   | 
103  | 
 
  | 
 
Marketable equity securities  | 
   | 
6,437  | 
 
  | 
   | 
77  | 
 
  | 
   | 
—  | 
 
  | 
   | 
6,514  | 
 
  | 
   | 
6,221  | 
 
  | 
   | 
—  | 
 
  | 
   | 
—  | 
 
  | 
   | 
6,221  | 
 
  | 
 
Other long-term investments:  | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
Asset-backed securities  | 
   | 
—  | 
 
  | 
   | 
—  | 
 
  | 
   | 
7  | 
 
  | 
   | 
7  | 
 
  | 
   | 
—  | 
 
  | 
   | 
—  | 
 
  | 
   | 
9  | 
 
  | 
   | 
9  | 
 
  | 
 
Corporate debt  | 
   | 
588  | 
 
  | 
   | 
578  | 
 
  | 
   | 
18  | 
 
  | 
   | 
1,184  | 
 
  | 
   | 
228  | 
 
  | 
   | 
270  | 
 
  | 
   | 
27  | 
 
  | 
   | 
525  | 
 
  | 
 
Financial institution instruments  | 
   | 
254  | 
 
  | 
   | 
425  | 
 
  | 
   | 
—  | 
 
  | 
   | 
679  | 
 
  | 
   | 
90  | 
 
  | 
   | 
402  | 
 
  | 
   | 
—  | 
 
  | 
   | 
492  | 
 
  | 
 
Government debt  | 
   | 
63  | 
 
  | 
   | 
220  | 
 
  | 
   | 
—  | 
 
  | 
   | 
283  | 
 
  | 
   | 
259  | 
 
  | 
   | 
188  | 
 
  | 
   | 
—  | 
 
  | 
   | 
447  | 
 
  | 
 
Other long-term assets:  | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
Derivative assets  | 
   | 
—  | 
 
  | 
   | 
23  | 
 
  | 
   | 
27  | 
 
  | 
   | 
50  | 
 
  | 
   | 
—  | 
 
  | 
   | 
7  | 
 
  | 
   | 
29  | 
 
  | 
   | 
36  | 
 
  | 
 
Loans receivable  | 
   | 
—  | 
 
  | 
   | 
162  | 
 
  | 
   | 
—  | 
 
  | 
   | 
162  | 
 
  | 
   | 
—  | 
 
  | 
   | 
702  | 
 
  | 
   | 
—  | 
 
  | 
   | 
702  | 
 
  | 
 
Total assets measured and recorded at fair value  | 
   | 
$  | 
13,204  | 
 
  | 
   | 
$  | 
11,448  | 
 
  | 
   | 
$  | 
147  | 
 
  | 
   | 
$  | 
24,799  | 
 
  | 
   | 
$  | 
13,512  | 
 
  | 
   | 
$  | 
14,525  | 
 
  | 
   | 
$  | 
88  | 
 
  | 
   | 
$  | 
28,125  | 
 
  | 
 
Liabilities  | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
Other accrued liabilities:  | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
Derivative liabilities  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
323  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
323  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
372  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
372  | 
 
  | 
 
Other long-term liabilities:  | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
Derivative liabilities  | 
   | 
—  | 
 
  | 
   | 
22  | 
 
  | 
   | 
—  | 
 
  | 
   | 
22  | 
 
  | 
   | 
—  | 
 
  | 
   | 
50  | 
 
  | 
   | 
—  | 
 
  | 
   | 
50  | 
 
  | 
 
Total liabilities measured and recorded at fair value  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
345  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
345  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
422  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
422  | 
 
  | 
 
  
 
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        | 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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   | 
   | 
September 27, 2014  | 
 
(In Millions)  | 
   | 
 Carrying 
Amount 
 | 
   | 
Fair Value Measured Using  | 
   | 
Fair Value  | 
 
Level 1  | 
   | 
Level 2    | 
   | 
Level 3    | 
   | 
 
Grants receivable  | 
   | 
$  | 
777  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
784  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
784  | 
 
  | 
 
Loans receivable  | 
   | 
$  | 
250  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
250  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
250  | 
 
  | 
 
Non-marketable cost method investments  | 
   | 
$  | 
1,871  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
2,801  | 
 
  | 
   | 
$  | 
2,801  | 
 
  | 
 
Reverse repurchase agreements  | 
   | 
$  | 
450  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
450  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
450  | 
 
  | 
 
Short-term debt  | 
   | 
$  | 
1,085  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
1,550  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
1,550  | 
 
  | 
 
Long-term debt  | 
   | 
$  | 
12,103  | 
 
  | 
   | 
$  | 
11,319  | 
 
  | 
   | 
$  | 
1,220  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
12,539  | 
 
  | 
 
NVIDIA Corporation cross-license agreement liability  | 
   | 
$  | 
393  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
399  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
399  | 
 
  | 
 
  
 
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   | 
   | 
December 28, 2013  | 
 
(In Millions)  | 
   | 
 Carrying 
Amount 
 | 
   | 
Fair Value Measured Using  | 
   | 
Fair Value  | 
 
Level 1  | 
   | 
Level 2  | 
   | 
Level 3  | 
   | 
 
Grants receivable  | 
   | 
$  | 
416  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
481  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
481  | 
 
  | 
 
Loans receivable  | 
   | 
$  | 
267  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
250  | 
 
  | 
   | 
$  | 
17  | 
 
  | 
   | 
$  | 
267  | 
 
  | 
 
Non-marketable cost method investments  | 
   | 
$  | 
1,270  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
2,105  | 
 
  | 
   | 
$  | 
2,105  | 
 
  | 
 
Reverse repurchase agreements  | 
   | 
$  | 
400  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
400  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
400  | 
 
  | 
 
Short-term debt  | 
   | 
$  | 
24  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
24  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
24  | 
 
  | 
 
Long-term debt  | 
   | 
$  | 
13,165  | 
 
  | 
   | 
$  | 
10,937  | 
 
  | 
   | 
$  | 
2,601  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
13,538  | 
 
  | 
 
NVIDIA Corporation cross-license agreement liability  | 
   | 
$  | 
587  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
597  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
597  | 
 
  | 
 
  
 
 |