PENSION AND OTHER POSTRETIREMENT BENEFITS - Schedule of Plan Asset Allocations (Details) - Pension Benefits	Dec. 28, 2025	Dec. 29, 2024
Defined Benefit Plan Disclosure [Line Items]
Total assets	100.00%	100.00%
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Total assets	7.00%	21.00%
GK Pension Plan | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Total assets	0.00%	3.00%
U.K. Plans | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Total assets	31.00%	24.00%
U.K. Plans | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Total assets	23.00%	30.00%
U.K. Plans | Liability driven investments
Defined Benefit Plan Disclosure [Line Items]
Total assets	30.00%	10.00%
U.K. Plans | Real estate
Defined Benefit Plan Disclosure [Line Items]
Total assets	9.00%	12.00%