EMPLOYEE BENEFIT PLANS - Narrative (Details) $ in Millions			3 Months Ended		4 Months Ended	9 Months Ended
	Jul. 01, 2020 USD ($) union	Mar. 05, 2020 USD ($)	Dec. 05, 2020 USD ($)	Nov. 30, 2019 USD ($)	Jun. 20, 2020 USD ($)	Dec. 05, 2020 USD ($)	Nov. 30, 2019 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Contribution made to defined benefit plan			$ 1.7	$ 2.0		$ 58.0	$ 9.0
Expected future employer contributions for remainder of the fiscal year			4.4			4.4
Defined contribution plan costs recognized			15.3	$ 12.7		53.4	$ 45.3
Number of local unions ratifying the agreement | union	9
Expected future employer contributions						595.0
Period of expected future employer contributions	30 months
Expected future employer contributions, after-tax						$ 445.0
Payment			$ 147.3
Combined Plan
Defined Benefit Plan Disclosure [Line Items]
Required annual contribution		$ 23.2
Defined contribution plan term		25 years
MAP And FELRA
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan costs recognized					$ 26.2
Defined contribution plan term						10 years
Variable Annuity Pension Plan (VAPP)
Defined Benefit Plan Disclosure [Line Items]
Expected future employer contributions	$ 286.0					$ 4.0
Expected future employer contributions, after-tax	213.0
Minimum | MAP And FELRA
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan costs recognized					10.0
Minimum | Variable Annuity Pension Plan (VAPP)
Defined Benefit Plan Disclosure [Line Items]
Pre-funded reserve amount	8.0
Maximum | MAP And FELRA
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan costs recognized					$ 12.0
Maximum | Variable Annuity Pension Plan (VAPP)
Defined Benefit Plan Disclosure [Line Items]
Pre-funded reserve amount	$ 9.0