Employee Benefit Plans US Pension Assets, Fair Value Measurement by Input Level (Details) - UNITED STATES - Pension Plan - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
U.S. Large Cap
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount		$ 144.9
U.S. Large Cap | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount		0.0
U.S. Large Cap | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount		0.0
U.S. Large Cap | Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount		0.0
U.S. Large Cap | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount		144.9
U.S. Small Cap
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount		63.3
U.S. Small Cap | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount		32.8
U.S. Small Cap | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount		0.0
U.S. Small Cap | Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount		0.0
U.S. Small Cap | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount		30.5
Global
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	$ 463.1	388.7
Global | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	57.4	0.0
Global | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Global | Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Global | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	405.7	388.7
Emerging Markets
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount		59.8
Emerging Markets | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount		0.0
Emerging Markets | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount		0.0
Emerging Markets | Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount		0.0
Emerging Markets | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount		59.8
U.S. Government and Agencies
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	215.7	419.3
U.S. Government and Agencies | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	194.0	419.3
U.S. Government and Agencies | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	21.7	0.0
U.S. Government and Agencies | Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	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, Investment within Plan Asset Category, Amount	0.0	0.0
Corporate
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	129.6	103.3
Corporate | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Corporate | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Corporate | Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Corporate | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	129.6	103.3
Foreign Emerging Market Fixed Income Securities
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	54.0
Foreign Emerging Market Fixed Income Securities | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0
Foreign Emerging Market Fixed Income Securities | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0
Foreign Emerging Market Fixed Income Securities | Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0
Foreign Emerging Market Fixed Income Securities | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	54.0
Opportunistic Credits
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	132.3	212.5
Opportunistic Credits | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Opportunistic Credits | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Opportunistic Credits | Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset 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, Investment within Plan Asset Category, Amount	132.3	212.5
Real Estate
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	164.2	247.1
Real Estate | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Real Estate | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Real Estate | Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset 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, Investment within Plan Asset Category, Amount	164.2	247.1
Private Equity Direct Investments
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	74.5	80.4
Private Equity Direct Investments | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Private Equity Direct Investments | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Private Equity Direct Investments | Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Private Equity Direct Investments | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	74.5	80.4
Private Equity Funds of Funds
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	47.6	50.5
Private Equity Funds of Funds | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Private Equity Funds of Funds | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Private Equity Funds of Funds | Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Private Equity Funds of Funds | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	47.6	50.5
Cash Equivalents
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	20.5	31.9
Cash Equivalents | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	20.5	31.9
Cash Equivalents | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Cash Equivalents | Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Cash Equivalents | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	0.0	0.0
Total Invested Assets
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	1,301.5	1,801.7
Total Invested Assets | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	271.9	484.0
Total Invested Assets | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	21.7	0.0
Total Invested Assets | Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Investment within Plan Asset 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, Investment within Plan Asset Category, Amount	$ 1,007.9	$ 1,317.7