XML 55 R44.htm IDEA: XBRL DOCUMENT v3.21.2
Other charges (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Dec. 31, 2021
Sep. 26, 2021
Sep. 27, 2020
Sep. 26, 2021
Sep. 27, 2020
Other Commitments [Line Items]          
Other charges   $ 0.0 $ 0.0 $ (1.1) $ 0.0
Forecast          
Other Commitments [Line Items]          
Other charges $ 0.0