EMPLOYEE BENEFIT PLANS AND COLLECTIVE BARGAINING AGREEMENTS - Schedule of Accumulated Benefit Obligation in Excess of Plan Assets (Details) - USD ($) $ in Millions	Feb. 23, 2019	Feb. 24, 2018
Retirement Benefits [Abstract]
Projected benefit obligation	$ 2,325.8	$ 2,351.8
Accumulated benefit obligation	2,323.9	2,349.6
Fair value of plan assets	$ 1,847.0	$ 1,814.0

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Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of projected benefit obligation for defined benefit pension plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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