Derivative Instruments - Effect on Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Carrying Amount of Hedged Assets/(Liabilities)	$ 61.1		$ 60.7
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset/(Liabilities)	1.0		1.2
Gain (loss) on derivative
Total revenue	12,481.6	$ 12,382.0
Cost of revenue	12,218.9	12,151.1
Gains (losses) on fair value hedge relationships:
Amount excluded from effectiveness testing recognized in earnings based on amortization approach	0.0	0.0
Derivative, Credit Risk Related Contingent Features [Abstract]
Net derivative liability positions with credit contingent features	76.9		72.5
Collateral posted and held by our counterparties	(10.5)		(28.7)
Maximum additional potential collateral requirements	66.4		$ 43.8
Derivatives designated as hedging instruments
Gains (losses) on cash flow hedge relationships:
Amount of Gain (Loss) Recognized in Accumulated other comprehensive income (loss), Net of Income Tax (Expense) Benefit	(0.3)	(44.1)
Amount of Gain (Loss) Reclassified from Accumulated other comprehensive income (loss) into Net income (loss), Net of Income Tax (Expense) Benefit	1.8	(24.8)
Derivatives not designated as hedging instruments
Gains (losses) on cash flow hedge relationships:
Derivative Instruments - Non-designated	(97.2)	67.6
Revenue
Gain (loss) on derivative
Total revenue	12,481.6	12,382.0
Gains (losses) on cash flow hedge relationships:
Total amount of income and expense line items excluding the impact of hedges, Revenue	12,482.1	12,415.0
Cost of revenue
Gain (loss) on derivative
Cost of revenue	12,218.9	12,151.1
Gains (losses) on cash flow hedge relationships:
Total amount of income and expense line items excluding the impact of hedges, Cost of Revenue	12,219.3	12,138.6
Interest expense and other financing costs, net
Gain (loss) on derivative
Interest expense and other financing costs, net	34.3	14.3
Gains (losses) on cash flow hedge relationships:
Total amount of income and expense line items excluding the impact of hedges, Interest expense and other financing costs	37.4	14.0
Commodity contracts | Derivatives not designated as hedging instruments
Gains (losses) on cash flow hedge relationships:
Derivative Instruments - Non-designated	(97.4)	70.5
Commodity contracts | Revenue
Gains (losses) on fair value hedge relationships:
Hedged item	0.0	0.0
Derivatives designated as hedging instruments	0.0	0.0
Amount excluded from effectiveness testing recognized in earnings based on amortization approach	0.0	0.0
Gains (losses) on cash flow hedge relationships:
Amount of gain (loss) reclassified from Accumulated other comprehensive income (loss) into net income	(0.5)	(33.0)
Amount excluded from effectiveness testing recognized in earnings based on changes in fair value	0.0	0.0
Commodity contracts | Revenue | Derivatives designated as hedging instruments
Gains (losses) on cash flow hedge relationships:
Gain (Loss) Not Recorded in Accumulated other comprehensive income (loss) Due to Intra-Period Settlement	(0.4)	(75.3)
Amount of Gain (Loss) Recognized in Accumulated other comprehensive income (loss), Net of Income Tax (Expense) Benefit	0.7	(52.7)
Amount of Gain (Loss) Reclassified from Accumulated other comprehensive income (loss) into Net income (loss), Net of Income Tax (Expense) Benefit	(0.4)	(24.6)
Commodity contracts | Revenue | Derivatives not designated as hedging instruments
Gains (losses) on cash flow hedge relationships:
Derivative Instruments - Non-designated	(90.3)	76.9
Commodity contracts | Cost of revenue
Gains (losses) on fair value hedge relationships:
Hedged item	(3.3)	28.6
Derivatives designated as hedging instruments	3.8	(41.2)
Amount excluded from effectiveness testing recognized in earnings based on amortization approach	0.0	0.0
Gains (losses) on cash flow hedge relationships:
Amount of gain (loss) reclassified from Accumulated other comprehensive income (loss) into net income	(0.1)	0.0
Amount excluded from effectiveness testing recognized in earnings based on changes in fair value	0.0	0.0
Commodity contracts | Cost of revenue | Derivatives designated as hedging instruments
Gains (losses) on cash flow hedge relationships:
Gain (Loss) Not Recorded in Accumulated other comprehensive income (loss) Due to Intra-Period Settlement	(1.7)	1.4
Amount of Gain (Loss) Recognized in Accumulated other comprehensive income (loss), Net of Income Tax (Expense) Benefit	(0.4)	0.0
Amount of Gain (Loss) Reclassified from Accumulated other comprehensive income (loss) into Net income (loss), Net of Income Tax (Expense) Benefit	(0.1)	0.0
Commodity contracts | Cost of revenue | Derivatives not designated as hedging instruments
Gains (losses) on cash flow hedge relationships:
Derivative Instruments - Non-designated	(7.1)	(6.4)
Commodity contracts | Interest expense and other financing costs, net
Gains (losses) on fair value hedge relationships:
Hedged item	0.0	0.0
Derivatives designated as hedging instruments	0.0	0.0
Amount excluded from effectiveness testing recognized in earnings based on amortization approach	0.0	0.0
Gains (losses) on cash flow hedge relationships:
Amount of gain (loss) reclassified from Accumulated other comprehensive income (loss) into net income	0.0	0.0
Amount excluded from effectiveness testing recognized in earnings based on changes in fair value	0.0	0.0
Interest rate contracts | Revenue
Gains (losses) on cash flow hedge relationships:
Amount of gain (loss) reclassified from Accumulated other comprehensive income (loss) into net income	0.0	0.0
Amount excluded from effectiveness testing recognized in earnings based on changes in fair value	0.0	0.0
Interest rate contracts | Cost of revenue
Gains (losses) on cash flow hedge relationships:
Amount of gain (loss) reclassified from Accumulated other comprehensive income (loss) into net income	0.0	0.0
Amount excluded from effectiveness testing recognized in earnings based on changes in fair value	0.0	0.0
Interest rate contracts | Interest expense and other financing costs, net
Gains (losses) on cash flow hedge relationships:
Amount of gain (loss) reclassified from Accumulated other comprehensive income (loss) into net income	3.1	(0.3)
Amount excluded from effectiveness testing recognized in earnings based on changes in fair value	0.0	0.0
Interest rate contracts | Interest expense and other financing costs, net | Derivatives designated as hedging instruments
Gains (losses) on cash flow hedge relationships:
Amount of Gain (Loss) Recognized in Accumulated other comprehensive income (loss), Net of Income Tax (Expense) Benefit	(0.7)	8.6
Amount of Gain (Loss) Reclassified from Accumulated other comprehensive income (loss) into Net income (loss), Net of Income Tax (Expense) Benefit	2.3	(0.2)
Foreign currency contracts | Derivatives not designated as hedging instruments
Gains (losses) on cash flow hedge relationships:
Derivative Instruments - Non-designated	0.2	(2.9)
Foreign currency contracts | Revenue | Derivatives not designated as hedging instruments
Gains (losses) on cash flow hedge relationships:
Derivative Instruments - Non-designated	(3.6)	(0.6)
Foreign currency contracts | Interest expense and other financing costs, net | Derivatives not designated as hedging instruments
Gains (losses) on cash flow hedge relationships:
Derivative Instruments - Non-designated	$ 3.8	$ (2.3)