Employee Benefit Plans (Assets Measured at NAV) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Assets Category:
Fair Value	$ 131.1	$ 184.3
NAV [Member]
Assets Category:
Fair Value	$ 130.2	183.9
Commingled Pools / Collective Trusts [Member] | U.S. Equity [Member]
Assets Category:
Fair Value		$ 51.8
Redemption Frequency (if currently eligible)	Daily	Daily
Commingled Pools / Collective Trusts [Member] | International Equity [Member]
Assets Category:
Fair Value		$ 22.2
Redemption Frequency (if currently eligible)	Daily	Daily
Commingled Pools / Collective Trusts [Member] | Fixed Income [Member]
Assets Category:
Fair Value	$ 52.5	$ 69.3
Redemption Frequency (if currently eligible)	Daily	Daily
Balanced pension trusts [Member] | International Equity [Member]
Assets Category:
Fair Value		$ 4.4
Redemption Frequency (if currently eligible)	Daily	Daily
Balanced pension trusts [Member] | Fixed Income [Member]
Assets Category:
Fair Value	$ 8.3	$ 12.6
Redemption Frequency (if currently eligible)	Daily	Daily
Pension Funds [Member] | Fixed Income [Member]
Assets Category:
Fair Value		$ 23.6
Redemption Frequency (if currently eligible)	Daily	Daily
Pension Fund Member | Fixed Income [Member]
Assets Category:
Fair Value	$ 13.0	$ 23.6
Fair Value, Inputs, Level 2 [Member]
Assets Category:
Fair Value	130.2	183.9
Fair Value, Inputs, Level 2 [Member] | Commingled Pools / Collective Trusts [Member] | Fixed Income [Member]
Assets Category:
Fair Value	52.5	69.3
Fair Value, Inputs, Level 2 [Member] | Balanced pension trusts [Member] | Fixed Income [Member]
Assets Category:
Fair Value	8.3	12.6
Fair Value, Inputs, Level 2 [Member] | Pension Fund Member | Fixed Income [Member]
Assets Category:
Fair Value	$ 13.0	$ 23.6