Employment Benefit Plans Assumptions Used (Details) - Pension Benefits - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate, used to determine net cost		5.00%	5.20%	2.70%
Expected long-term rate of return on plan assets, used to determine net cost		6.70%	6.70%	6.50%
Rate of compensation increase, used to determine net cost		3.00%	3.10%	3.10%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate, used to determine benefit obligations		5.60%	5.00%
Rate of compensation increase, used to determine benefit obligation		3.00%	3.00%
Assumptions Sensitivity Analysis [Abstract]
Effect of 50 basis point decrease in discount rate		$ 5
Effect of 50 basis point increase in discount rate		(5)
Effect of 50 basis point decrease in rate of return on plan assets		14
Effect of 50 basis point increase in rate of return on plan assets		$ (14)
Forecast
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate, used to determine net cost	5.60%
Expected long-term rate of return on plan assets, used to determine net cost	6.70%