Significant Accounting Policies (Details 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Interest Income (Expense), Net	$ (263.4)	$ (214.0)	$ (204.0)
Estimated lives of useful depreciable assets
Interest Expense, Deposits	$ 15.2	$ 6.4	$ 0.7
Regulatory Survey Costs [Member]
Estimated lives of useful depreciable assets
Finite-Lived Intangible Asset, Useful Life	5 years
Minimum [Member]
Estimated lives of useful depreciable assets
Finite-Lived Intangible Asset, Useful Life	10 years
Minimum [Member] | Railcars [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	15 years
Minimum [Member] | Locomotives [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	15 years
Minimum [Member] | Buildings [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	40 years
Minimum [Member] | Leasehold Improvements [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	5 years
Minimum [Member] | Industrial Equipment [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	3 years
Minimum [Member] | 3724 Aircraft Engines and Engine Parts
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	20 years
Minimum [Member] | Containers
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	15 years
Maximum [Member]
Estimated lives of useful depreciable assets
Finite-Lived Intangible Asset, Useful Life	25 years
Maximum [Member] | Railcars [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	45 years
Maximum [Member] | Locomotives [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	25 years
Maximum [Member] | Buildings [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	50 years
Maximum [Member] | Leasehold Improvements [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	15 years
Maximum [Member] | Marine vessels [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	30 years
Maximum [Member] | Industrial Equipment [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	30 years
Maximum [Member] | 3724 Aircraft Engines and Engine Parts
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	25 years
Maximum [Member] | Containers
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	25 years