RETIREMENT BENEFITS - Assumptions Used to Determine Projected Benefits and Periodic Costs (Details)	12 Months Ended
	Jan. 02, 2026	Jan. 03, 2025	Dec. 29, 2023	Dec. 30, 2022
Pension
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate		5.46%	4.91%
Rate of future compensation increase		3.01%	3.01%
Cash balance interest crediting rate		4.50%	4.50%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate to determine service cost		4.92%	5.18%	2.69%
Discount rate to determine interest cost		4.80%	5.08%	2.27%
Expected return on plan assets		7.45%	7.46%	7.44%
Rate of future compensation increase		3.01%	3.01%	3.01%
Cash balance interest crediting rate		4.50%	4.00%	3.50%
Pension | Consolidated Pension Plan
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate		5.49%
Cash balance interest crediting rate		4.50%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Expected return on plan assets		7.50%
Pension | Consolidated Pension Plan | Forecast
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Expected return on plan assets	7.50%
Other Benefits
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate		5.38%	4.87%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate to determine service cost		5.00%	5.26%	2.91%
Discount rate to determine interest cost		4.78%	5.06%	2.06%
Expected return on plan assets		7.50%	7.50%	7.50%
Frozen Equity Pension Plan | Consolidated Pension Plan
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Cash balance interest crediting rate		4.25%