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Employee Benefit Plans US Pension Assets, Fair Value Measurement by Input Level (Details) - UNITED STATES - Pension Plan - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
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Equity Funds |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | $ 260.1 | $ 424.8
Equity Funds | Fair Value, Inputs, Level 1 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 32.1 | 52.5
Equity Funds | Fair Value, Inputs, Level 2 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Equity Funds | Fair Value, Inputs, Level 3 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Equity Funds | Fair Value Measured at Net Asset Value Per Share |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 228.0 | 372.3
U.S. Government and Agencies |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount | [1] | 315.7 | 341.4
U.S. Government and Agencies | Fair Value, Inputs, Level 1 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount | [1] | 323.5 | 357.5
U.S. Government and Agencies | Fair Value, Inputs, Level 2 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount | [1] | (7.8) | (16.1)
U.S. Government and Agencies | Fair Value, Inputs, Level 3 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount | [1] | 0.0 | 0.0
U.S. Government and Agencies | Fair Value Measured at Net Asset Value Per Share |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount | [1] | 0.0 | 0.0
Corporate Debt Securities |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 92.9 | 124.1
Corporate Debt Securities | Fair Value, Inputs, Level 1 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Corporate Debt Securities | Fair Value, Inputs, Level 2 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Corporate Debt Securities | Fair Value, Inputs, Level 3 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Corporate Debt Securities | Fair Value Measured at Net Asset Value Per Share |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 92.9 | 124.1
Non-U.S. Emerging Markets |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 44.6 | 32.4
Non-U.S. Emerging Markets | Fair Value, Inputs, Level 1 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Non-U.S. Emerging Markets | Fair Value, Inputs, Level 2 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Non-U.S. Emerging Markets | Fair Value, Inputs, Level 3 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Non-U.S. Emerging Markets | Fair Value Measured at Net Asset Value Per Share |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 44.6 | 32.4
Opportunistic Credits |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 82.9 | 139.6
Opportunistic Credits | Fair Value, Inputs, Level 1 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Opportunistic Credits | Fair Value, Inputs, Level 2 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Opportunistic Credits | Fair Value, Inputs, Level 3 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Opportunistic Credits | Fair Value Measured at Net Asset Value Per Share |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 82.9 | 139.6
Real Estate |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 177.6 | 166.1
Real Estate | Fair Value, Inputs, Level 1 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Real Estate | Fair Value, Inputs, Level 2 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Real Estate | Fair Value, Inputs, Level 3 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Real Estate | Fair Value Measured at Net Asset Value Per Share |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 177.6 | 166.1
Private Equity Funds, Private Equity Direct Investments |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 56.3 | 63.1
Private Equity Funds, Private Equity Direct Investments | Fair Value, Inputs, Level 1 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Private Equity Funds, Private Equity Direct Investments | Fair Value, Inputs, Level 2 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Private Equity Funds, Private Equity Direct Investments | Fair Value, Inputs, Level 3 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Private Equity Funds, Private Equity Direct Investments | Fair Value Measured at Net Asset Value Per Share |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 56.3 | 63.1
Private Equity Funds |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 30.3 | 35.2
Private Equity Funds | Fair Value, Inputs, Level 1 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Private Equity Funds | Fair Value, Inputs, Level 2 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Private Equity Funds | Fair Value, Inputs, Level 3 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Private Equity Funds | Fair Value Measured at Net Asset Value Per Share |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 30.3 | 35.2
Repurchase Agreements |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | (141.9) | (123.0)
Repurchase Agreements | Fair Value, Inputs, Level 1 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Repurchase Agreements | Fair Value, Inputs, Level 2 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | (141.9) | (123.0)
Repurchase Agreements | Fair Value, Inputs, Level 3 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Repurchase Agreements | Fair Value Measured at Net Asset Value Per Share |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Cash and Cash Equivalents |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 26.6 | 17.2
Cash and Cash Equivalents | Fair Value, Inputs, Level 1 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 26.6 | 17.2
Cash and Cash Equivalents | Fair Value, Inputs, Level 2 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Cash and Cash Equivalents | Fair Value, Inputs, Level 3 |  |  |
Defined Benefit Plan Disclosure |  |  |
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 Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 0.0 | 0.0
Total Invested Assets |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 945.1 | 1,220.9
Total Invested Assets | Fair Value, Inputs, Level 1 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | 382.2 | 427.2
Total Invested Assets | Fair Value, Inputs, Level 2 |  |  |
Defined Benefit Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | (149.7) | (139.1)
Total Invested Assets | Fair Value, Inputs, Level 3 |  |  |
Defined Benefit Plan Disclosure |  |  |
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 Plan Disclosure |  |  |
Defined Benefit Plan, Plan Assets, by Investment Category, Amount |  | $ 712.6 | $ 932.8
[1] | Includes derivatives which hedge the risk associated with certain U.S. Government and Agencies Securities.

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