Post-Retirement Health Care - Schedule of Cost of Retirement Plans (Details) - Postretirement Health Coverage - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022
Change in benefit obligation
Benefit obligation at beginning of year	$ 23.3	$ 23.4
Service cost	0.6	0.6
Interest cost	0.6	0.5
Benefits paid	(1.1)	(1.1)
Actuarial gain	(6.0)	(0.2)
Benefit obligation at end of year	17.3	23.3
Change in plan assets
Fair value at beginning of year	0.0	0.0
Actual return on assets	0.0	0.0
Employer contribution	1.1	1.1
Transferred out	0.0	0.0
Benefits paid	(1.1)	(1.1)
Fair value at end of year	0.0	0.0
Funded Status of Plan	(17.3)	(23.3)
Amounts recognized in the Statement of Financial Position consist of:
Current liabilities	1.2	1.1
Non-current liabilities	16.2	22.1
Change in Accumulated Other Comprehensive Income (Loss) (before tax):
Amount disclosed at beginning of year	3.3	3.7
Actuarial gain	(6.0)	(0.2)
Amortization of transition amount	(0.1)	(0.2)
Amount disclosed at end of year	$ (2.8)	$ 3.3