Derivative Instruments - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Derivative [Line Items]
Gain (loss) recognized in earnings related to fair value or cash flow hedges excluded from assessment of hedge effectiveness	$ 0	$ 0
Revenues	5,957,900,000	8,015,200,000
Cost of revenue	5,766,300,000	7,756,400,000
Collateral posted and held by our counterparties	0		$ 0
Reclassification out of Accumulated Other Comprehensive Income
Derivative [Line Items]
Revenues	(76,800,000)	162,400,000
Cost of revenue	7,200,000	(90,100,000)
Revenue
Derivative [Line Items]
Amount scheduled to be reclassified over the next twelve months	(175,300,000)
Revenues	5,957,900,000	8,015,200,000
Cost of Revenue
Derivative [Line Items]
Amount scheduled to be reclassified over the next twelve months	(179,100,000)
Cost of revenue	$ 5,766,300,000	$ 7,756,400,000