Fair Value Measures (Narrative) (Details) - USD ($) |
Jun. 27, 2020 |
Dec. 28, 2019 |
|---|---|---|
| Fair Value Measures [Abstract] | ||
| Non-financial assets | $ 0 | $ 0 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Nonfinancial Assets Fair Value Disclosure No definition available.
|