Cash Equivalents and Investments (Tables)

12 Months Ended

Dec. 28, 2018

Cash and Cash Equivalents [Abstract]

Cash, Cash Equivalents and Investments

At the End of Fiscal Year	2017
(In millions)
Available-for-sale securities:
U.S. Treasury securities	$	9.6
Corporate debt securities	96.0
Commercial paper	100.1
Total available-for-sale securities	$	205.7
Reported as:
Cash and cash equivalents	$	26.8
Short-term investments	178.9
Total	$	205.7