Income Taxes (Deferred Tax Assets and Deferred Tax Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Net operating loss and other carryforwards	$ 1,372.1	$ 1,327.6
Investments	366.4	251.8
Lease liabilities	186.5	184.0
Debt and interest	185.2	175.7
Property and equipment, net	169.9	125.7
Derivative instruments	126.7	4.3
Share-based compensation	81.4	84.7
Other future deductible amounts	60.7	64.6
Deferred tax assets	2,548.9	2,218.4
Valuation allowance	(1,899.6)	(1,586.5)
Deferred tax assets, net of valuation allowance	649.3	631.9
Deferred tax liabilities:
Intangible assets	(272.9)	(336.7)
Property and equipment, net	(272.2)	(157.6)
Debt and interest	(266.4)	(91.1)
ROU assets	(177.2)	(177.1)
Derivative instruments	(70.8)	(155.3)
Other future taxable amounts	(49.9)	(14.1)
Deferred tax liabilities	(1,109.4)	(931.9)
Net deferred tax liabilities	$ (460.1)	$ (300.0)