RETIREMENT BENEFITS - Assumptions Used to Determine Projected Benefits and Periodic Costs (Details)	12 Months Ended
	Dec. 29, 2023	Dec. 30, 2022	Dec. 31, 2021
Pension
Obligation assumptions as of:
Discount rate	4.91%	5.18%
Rate of future compensation increase	3.01%	3.01%
Cash balance interest crediting rate	4.50%	4.00%
Cost assumptions for fiscal periods ended:
Discount rate to determine service cost	5.18%	2.69%	2.26%
Discount rate to determine interest cost	5.08%	2.27%	1.80%
Expected return on plan assets	7.46%	7.44%	7.43%
Rate of future compensation increase	3.01%	3.01%	3.01%
Cash balance interest crediting rate	4.00%	3.50%	3.50%
Other Benefits
Obligation assumptions as of:
Discount rate	4.87%	5.16%
Cost assumptions for fiscal periods ended:
Discount rate to determine service cost	5.26%	2.91%	2.49%
Discount rate to determine interest cost	5.06%	2.06%	1.42%