Employee Benefit Plans (Net Periodic Costs (Assumptions) (Details)	Jan. 01, 2024	Jan. 01, 2023	Jan. 01, 2022
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase (average)	4.25%	4.25%	4.25%
Assumed health care cost trend rate - Initial trend	6.00%	6.00%	6.00%
Assumed health care cost trend rate - Ultimate trend	4.50%	4.50%	4.50%
Assumed health care cost trend rate - Year ultimate trend reached	2030	2029	2028
Expected long-term return on plan assets	6.60%	6.20%	4.50%
Pension Plans | Qualified Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.25%	5.55%	2.90%
Interest crediting rate (average)	4.35%	4.65%	3.70%
Pension Plans | Nonqualified Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.10%	5.45%	2.65%
Interest crediting rate (average)	4.45%	4.80%	4.00%
Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.15%	5.50%	2.80%
Interest crediting rate (average)	4.00%	4.30%	1.65%