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EMPLOYEE BENEFIT PLANS
 4 Months Ended
Jun. 18, 2022
Retirement Benefits [Abstract]  
EMPLOYEE BENEFIT PLANS EMPLOYEE BENEFIT PLANS
Pension and Other Post-Retirement Benefits

The following table provides the components of net pension and post-retirement (income) expense (in millions):
16 weeks ended
PensionOther post-retirement benefits
June 18,
2022		June 19,
2021		June 18,
2022		June 19,
2021
Estimated return on plan assets$(28.6)$(32.7)$— $— 
Service cost6.2 6.9 — — 
Interest cost15.8 13.0 0.1 0.1 
Amortization of prior service cost0.1 0.1 — — 
Amortization of net actuarial loss (gain)0.2 0.3 (0.1)(0.2)
(Income) expense, net$(6.3)$(12.4)$— $(0.1)

The Company contributed $3.2 million and $2.0 million to its defined pension plans and post-retirement benefit plans during the 16 weeks ended June 18, 2022 and June 19, 2021, respectively. At the Company's discretion, additional funds may be contributed to the defined benefit pension plans that are determined to be beneficial to the
Company. The Company currently anticipates contributing an additional $17.9 million to these plans for the remainder of fiscal 2022.

Multiemployer Pension Plans

ARP Act: The American Rescue Plan Act ("ARP Act"), which was signed into law on March 11, 2021, established a special financial assistance program for financially troubled multiemployer pension plans. Under the ARP Act, eligible multiemployer plans can apply to receive a one-time cash payment in an amount projected by the Pension Benefit Guaranty Corporation ("PBGC") to pay pension benefits through the plan year ending 2051. In the fourth quarter of fiscal 2021, the Combined Plan submitted its application to receive one-time special financial assistance. During the 16 weeks ended June 18, 2022, the Combined Plan received approval and payment from the PBGC for $1.2 billion in special financial assistance. For additional information, including a description and definition of the Combined Plan, as well as the impact on the Excess Plan, as defined therein, see "Part II—Item 8. Financial Statements and Supplementary Data—Note 12" of the Company's Annual Report on Form 10-K for the fiscal year ended February 26, 2022.