| Other Financial Statement Details Advertising (Details) - USD ($) $ in Millions | 12 Months Ended | ||
|---|---|---|---|
| Dec. 28, 2019 | Dec. 29, 2018 | Dec. 30, 2017 | |
| Income Statement [Abstract] | |||
| Advertising Expense | $ 832 | $ 1,200 | $ 1,400 | 
| X | ||||||||||
| 
- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
 | 
| X | ||||||||||
| 
- References No definition available. 
 |