EMPLOYEE BENEFIT PLANS AND COLLECTIVE BARGAINING AGREEMENTS - Schedule of Fair Value of Plan Assets (Details) - Pension - USD ($) $ in Millions	Feb. 22, 2025	Feb. 24, 2024
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 1,483.2	$ 1,491.5
Assets Measured at NAV	414.3	721.3
Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8.6	366.5
Significant Observable Inputs (Level 2)(1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,060.3	403.7
Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1.9	5.7
Assets Measured at NAV	0.0	0.0
Cash and cash equivalents | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1.9	5.2
Cash and cash equivalents | Significant Observable Inputs (Level 2)(1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.5
Cash and cash equivalents | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Short-term investment collective trust
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	53.2	34.3
Assets Measured at NAV	53.2	34.3
Short-term investment collective trust | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Short-term investment collective trust | Significant Observable Inputs (Level 2)(1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Short-term investment collective trust | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Domestic common and preferred stock
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6.7	164.8
Assets Measured at NAV	0.0	0.0
Domestic common and preferred stock | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6.7	164.8
Domestic common and preferred stock | Significant Observable Inputs (Level 2)(1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Domestic common and preferred stock | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
International common stock
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	490.2	57.7
Assets Measured at NAV	0.0	0.0
International common stock | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	57.7
International common stock | Significant Observable Inputs (Level 2)(1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	490.2	0.0
International common stock | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Collective trust funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	172.2	636.5
Assets Measured at NAV	156.7	636.5
Collective trust funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Collective trust funds | Significant Observable Inputs (Level 2)(1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	15.5	0.0
Collective trust funds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	499.1	84.0
Assets Measured at NAV	0.0	0.0
Corporate bonds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Corporate bonds | Significant Observable Inputs (Level 2)(1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	499.1	84.0
Corporate bonds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Mortgage and other asset-backed securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	82.4	22.3
Assets Measured at NAV	82.4	0.0
Mortgage and other asset-backed securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Mortgage and other asset-backed securities | Significant Observable Inputs (Level 2)(1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	22.3
Mortgage and other asset-backed securities | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	168.9	166.2
Assets Measured at NAV	122.0	0.0
Mutual funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	138.8
Mutual funds | Significant Observable Inputs (Level 2)(1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	46.9	27.4
Mutual funds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
U.S. government securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		250.2
Assets Measured at NAV		0.0
U.S. government securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0
U.S. government securities | Significant Observable Inputs (Level 2)(1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		250.2
U.S. government securities | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0
Other securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8.6	69.8
Assets Measured at NAV	0.0	50.5
Other securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Other securities | Significant Observable Inputs (Level 2)(1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8.6	19.3
Other securities | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0.0	$ 0.0