Fair Value (Tables)

12 Months Ended

Feb. 28, 2020

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

Assets and liabilities measured at fair value in our Consolidated Balance Sheets as of February 28, 2020 and February 22, 2019 are summarized below:

Fair Value of Financial Instruments	February 28, 2020
	Level 1		Level 2			Level 3		Total
Assets:
Cash and cash equivalents	$	541.0	$	—		$	—	$	541.0
Restricted cash	6.1		—			—		6.1
Foreign exchange forward contracts	—		1.2			—		1.2
Auction rate securities	—		—			2.1		2.1
	$	547.1	$	1.2		$	2.1	$	550.4
Liabilities:
Foreign exchange forward contracts	$	—	$	(0.5	)	$	—	$	(0.5	)
	$	—	$	(0.5	)	$	—	$	(0.5	)
Fair Value of Financial Instruments	February 22, 2019
	Level 1		Level 2			Level 3		Total
Assets:
Cash and cash equivalents	$	261.3	$	—		$	—	$	261.3
Restricted cash	3.5		—			—		3.5
Foreign exchange forward contracts	—		3.9			—		3.9
Auction rate securities	—		—			3.9		3.9
	$	264.8	$	3.9		$	3.9	$	272.6
Liabilities:
Foreign exchange forward contracts	$	—	$	(0.5	)	$	—	$	(0.5	)
	$	—	$	(0.5	)	$	—	$	(0.5	)

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

Below is a roll-forward of assets and liabilities measured at estimated fair value using Level 3 inputs for the years ended February 28, 2020 and February 22, 2019:

Roll-forward of Fair Value Using Level 3 Inputs	Auction Rate Securities
Balance as of February 23, 2018	$	3.5
Unrealized gain on investments	0.4
Balance as of February 22, 2019	$	3.9
Unrealized loss on investments	(0.1		)
Realized gain on investments	0.5
Redemption of auction rate securities	(2.2		)
Balance as of February 28, 2020	$	2.1