Retirement Plans and Other Postretirement Benefits - Schedule of Weighted-Average Assumptions for Pensions and Other Benefits (Details)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Weighted-average assumptions used to determine benefit obligations
Rate of compensation increase	4.50%	4.50%
Initial healthcare cost trend rate (pre-65 participants)	6.50%	6.50%
Ultimate healthcare cost trend rate (pre-65 participants)	4.50%	4.50%
Number of years to ultimate trend rate (pre-65 participants)	7 years	6 years
Initial healthcare cost trend rate (post-65 participants)		1.00%
Ultimate healthcare cost trend rate (post-65 participants)		0.00%
Interest crediting rate – cash balance pension plans	4.51%	4.66%
Weighted-average assumptions used to determine net periodic benefit costs
Initial healthcare cost trend rate (pre-65 participants)	6.50%	6.25%	6.50%
Ultimate healthcare cost trend rate (pre-65 participants)	4.50%	4.75%	4.75%
Number of years to ultimate trend rate (pre-65 participants)	6 years	4 years	5 years
Initial healthcare cost trend rate (post-65 participants)	1.00%	2.00%	2.00%
Ultimate healthcare cost trend rate (post-65 participants)		2.00%	2.00%
Interest crediting rate – cash balance pension plans	4.66%	4.54%	4.50%
Pension Plans
Weighted-average assumptions used to determine benefit obligations
Discount rate	5.36%	5.68%
Weighted-average assumptions used to determine net periodic benefit costs
Discount rate	5.68%	5.21%	5.56%
Rate of compensation increase	4.50%	4.52%	4.57%
Expected long-term return on plan assets	7.05%	6.90%	6.70%
Other Benefits Plans
Weighted-average assumptions used to determine benefit obligations
Discount rate	5.43%	5.71%
Weighted-average assumptions used to determine net periodic benefit costs
Discount rate	5.71%	5.23%	5.58%
Expected long-term return on plan assets	7.05%	6.85%	6.80%
Increase in post-65 health care cost trend rate assumed for next fiscal year	1.00%