Pension Benefits - Pension Benefit Payments (Details) - Pension Plans, Defined Benefit $ in Millions	12 Months Ended
Dec. 31, 2023 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Assets for plan benefits	$ 16.4
Settlement of asset retirement obligations	70.2
Settlement of asset retirement obligations	$ 55.5

Amount of asset, recognized in statement of financial position, for overfunded defined benefit pension and other postretirement plans.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant