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Deferred Revenue And Remaining Performance Obligations (Tables)
3 Months Ended
Apr. 02, 2021
Revenue Recognition and Deferred Revenue [Abstract]  
Deferred Revenue And Performance Obligations
Changes to our deferred revenue during the first quarter of fiscal 2021 and 2020 were as follows: 
  First Quarter of
(In millions) 20212020
Beginning balance of the period$613.8 $541.9 
Revenue recognized (247.3)(201.8)
Net deferred revenue activity252.4 211.4 
Ending balance of the period$618.9 $551.5