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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

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