The assumed health care cost trend rate for the second fiscal year used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status.

No definition available.

BENEFIT PLANS: Benefit Plans Narrative (Details) - USD ($)	11 Months Ended	12 Months Ended
	Dec. 31, 2074	Dec. 31, 2028	Dec. 31, 2027	Dec. 31, 2026	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan, Net Periodic Benefit Cost
Fair Value, All Levels Transfers, Amount					$ 0	$ 0
Employer contributions					10,900,000	10,400,000	$ 9,800,000
Supplemental Unemployment Benefits, Disability Related Benefits					$ 1,000,000	$ 3,000,000
Pension Plan
Defined Benefit Plan, Net Periodic Benefit Cost
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate					5.70%	5.10%	5.45%
Employer contributions					$ 20,000,000	$ 20,000,000
Postretirement Benefits
Defined Benefit Plan Disclosure
Postretirement Benefit, Medical Trend Rate					6.20%	7.10%	6.70%
Postretirement Benefit, Dental Trend Rate					4.00%	3.50%	3.50%
Defined Benefit Plan, Net Periodic Benefit Cost
Health Care Cost Trend Rate Assumed for Next Fiscal Year					4.00%	3.50%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate					5.70%	5.15%	5.45%
Senior Management Security Plan
Defined Benefit Plan Disclosure
Executive Deferred Compensation Plan Assets					$ 172,100,000	$ 159,100,000
Defined Benefit Plan, Net Periodic Benefit Cost
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate					5.70%	5.20%	5.50%
Employer contributions					$ 0	$ 0
Forecast \| Pension Plan
Defined Benefit Plan, Net Periodic Benefit Cost
Defined Benefit Plan, Minimum Funding Requirement for Next Fiscal Year				$ 0
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year				$ 30,000,000
Forecast \| Postretirement Benefits
Defined Benefit Plan Disclosure
Postretirement Benefit, Dental Trend Rate			4.00%
Defined Benefit Plan, Net Periodic Benefit Cost
Health Care Cost Trend Rate Assumed For Year Two				7.00%
Health Care Cost Trend Rate Assumed for Year Three			6.20%
Health Care Cost Trend Rate Assumed for Year Four	3.80%	5.50%