Employee Benefit Plans UK Pension Assets, Fair Value Measurement by Input Level (Details) - Pension Plan - Foreign Plan - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Diversified Growth Assets
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	$ 64.7	$ 35.4
Diversified Growth Assets | Fair Value, Inputs, Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	64.7	25.6
Diversified Growth Assets | Fair Value, Inputs, Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	0.0	0.0
Diversified Growth Assets | Fair Value, Inputs, Level 3
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	0.0	0.0
Diversified Growth Assets | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	0.0	9.8
Liability Driven Investments
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	56.3
Liability Driven Investments | Fair Value, Inputs, Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	0.0
Liability Driven Investments | Fair Value, Inputs, Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	56.3
Liability Driven Investments | Fair Value, Inputs, Level 3
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	0.0
Liability Driven Investments | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	0.0
Fixed Interest and Index-linked Securities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount		50.5
Fixed Interest and Index-linked Securities [Member] | Fair Value, Inputs, Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount		50.5
Fixed Interest and Index-linked Securities [Member] | Fair Value, Inputs, Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount		0.0
Fixed Interest and Index-linked Securities [Member] | Fair Value, Inputs, Level 3
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount		0.0
Fixed Interest and Index-linked Securities [Member] | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount		0.0
Alternative Investments
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	30.9	34.5
Alternative Investments | Fair Value, Inputs, Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	0.0	0.0
Alternative Investments | Fair Value, Inputs, Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	0.0	0.0
Alternative Investments | Fair Value, Inputs, Level 3
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	0.0	0.0
Alternative Investments | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	30.9	34.5
Cash and Cash Equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	2.6	5.3
Cash and Cash Equivalents | Fair Value, Inputs, Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	2.6	5.3
Cash and Cash Equivalents | Fair Value, Inputs, Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	0.0	0.0
Cash and Cash Equivalents | Fair Value, Inputs, Level 3
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	0.0	0.0
Cash and Cash Equivalents | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	0.0	0.0
Total Invested Assets
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	154.5	125.7
Total Invested Assets | Fair Value, Inputs, Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	67.3	81.4
Total Invested Assets | Fair Value, Inputs, Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	56.3	0.0
Total Invested Assets | Fair Value, Inputs, Level 3
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	0.0	0.0
Total Invested Assets | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans and Other Postretirement Benefit Plans
Defined Benefit Plan, Plan Assets, by Investment Category, Amount	$ 30.9	$ 44.3