Derivative Financial Instruments - Schedule of Cash Flow Hedges (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Derivative [Line Items]
Notional amount	$ 16,925.4	$ 15,841.3
Designated as Hedging Instrument | Interest rate swaps
Derivative [Line Items]
Notional amount	$ 1,000.0
Fixed Rates	2.56%
Designated as Hedging Instrument | Interest Rate Swap 2
Derivative [Line Items]
Notional amount	$ 500.0
Fixed Rates	2.56%
Designated as Hedging Instrument | Interest Rate Swap 3
Derivative [Line Items]
Notional amount	$ 500.0
Fixed Rates	2.55%