Retirement Benefits - Schedule of Significant Assumptions (Details)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Pension Benefits
Benefit Obligations:
Discount rate (as a percent)	6.10%	5.70%	5.20%
Rate of compensation increase (as a percent)	3.40%	3.00%	3.00%
Net Periodic Benefit (Income) Cost:
Discount rate (as a percent)	6.30%	5.20%	5.60%
Rate of compensation increase (as a percent)	3.40%	3.00%	3.00%
Expected return on plan assets (as a percent)	4.30%	4.00%	4.30%
Other Postretirement Benefits
Benefit Obligations:
Discount rate (as a percent)	5.40%	5.60%	5.20%
Net Periodic Benefit (Income) Cost:
Discount rate (as a percent)	5.60%	5.20%	5.60%