Derivative Instruments - Effect on Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Carrying Amount of Hedged Assets/(Liabilities)	$ 61.0		$ 61.0		$ 59.3
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset/(Liabilities)	(0.5)		(0.5)		0.6
Gain (loss) on derivative
Revenue	17,122.1	$ 7,085.5	29,504.1	$ 13,043.4
Cost of revenue	16,868.7	6,901.6	29,019.8	12,667.9
Derivative, Credit Risk Related Contingent Features [Abstract]
Net derivative liability positions with credit contingent features	15.4		15.4		3.3
Collateral posted and held by our counterparties	0.0		0.0		0.0
Maximum additional potential collateral requirements	15.4		15.4		$ 3.3
Derivatives designated as hedging instruments
Gains (losses) on fair value hedge relationships:
Amount of Gain (Loss) Recognized in Accumulated other comprehensive income (loss), Net of Income Tax (Expense) Benefit	(55.6)	55.7	(99.6)	81.2
Amount of Gain (Loss) Reclassified from Accumulated other comprehensive income (loss) into Net income (loss), Net of Income Tax (Expense) Benefit	(82.6)	64.2	(107.4)	73.4
Derivatives not designated as hedging instruments
Gains (losses) on fair value hedge relationships:
Derivative Instruments - Non-designated	68.2	5.0	135.8	17.9
Revenue
Gain (loss) on derivative
Revenue	17,122.1	7,085.5	29,504.1	13,043.4
Gains (losses) on fair value hedge relationships:
Total amount of income and expense line items excluding the impact of hedges, Revenue	17,234.3	7,088.4	29,649.8	13,058.0
Cost of revenue
Gain (loss) on derivative
Cost of revenue	16,868.7	6,901.6	29,019.8	12,667.9
Gains (losses) on fair value hedge relationships:
Total amount of income and expense line items excluding the impact of hedges, Cost of Revenue	16,871.3	6,972.2	29,009.8	12,763.2
Interest expense and other financing costs, net
Gain (loss) on derivative
Interest expense and other financing costs, net	26.5	11.4	40.9	22.5
Gains (losses) on fair value hedge relationships:
Total amount of income and expense line items excluding the impact of hedges, Interest expense and other financing costs	26.3	11.1	40.4	22.0
Commodity contracts | Derivatives not designated as hedging instruments
Gains (losses) on fair value hedge relationships:
Derivative Instruments - Non-designated	61.4	6.7	131.9	15.9
Commodity contracts | Revenue
Gains (losses) on fair value hedge relationships:
Hedged item	0.0	0.0	0.0	0.0
Derivatives designated as hedging instruments	0.0	0.0	0.0	0.0
Amount of gain (loss) reclassified from Accumulated other comprehensive income (loss) into net income	(112.2)	(2.9)	(145.6)	(14.6)
Commodity contracts | Revenue | Derivatives designated as hedging instruments
Gains (losses) on fair value hedge relationships:
Gain (Loss) Not Recorded in Accumulated other comprehensive income (loss) Due to Intra-Period Settlement	(56.6)	(113.8)	(131.4)	(190.6)
Amount of Gain (Loss) Recognized in Accumulated other comprehensive income (loss), Net of Income Tax (Expense) Benefit	(56.3)	(13.3)	(109.0)	(76.1)
Amount of Gain (Loss) Reclassified from Accumulated other comprehensive income (loss) into Net income (loss), Net of Income Tax (Expense) Benefit	(82.5)	(2.9)	(107.0)	(14.6)
Commodity contracts | Revenue | Derivatives not designated as hedging instruments
Gains (losses) on fair value hedge relationships:
Derivative Instruments - Non-designated	72.0	12.9	148.9	(290.9)
Commodity contracts | Cost of revenue
Gains (losses) on fair value hedge relationships:
Hedged item	13.5	14.6	42.1	26.5
Derivatives designated as hedging instruments	(10.9)	(11.3)	(52.1)	(19.7)
Amount of gain (loss) reclassified from Accumulated other comprehensive income (loss) into net income	0.0	67.4	0.0	88.4
Commodity contracts | Cost of revenue | Derivatives designated as hedging instruments
Gains (losses) on fair value hedge relationships:
Gain (Loss) Not Recorded in Accumulated other comprehensive income (loss) Due to Intra-Period Settlement	10.3	8.0	11.7	15.2
Amount of Gain (Loss) Recognized in Accumulated other comprehensive income (loss), Net of Income Tax (Expense) Benefit	(0.6)	69.6	(0.6)	154.3
Amount of Gain (Loss) Reclassified from Accumulated other comprehensive income (loss) into Net income (loss), Net of Income Tax (Expense) Benefit	0.0	67.4	0.0	88.4
Commodity contracts | Cost of revenue | Derivatives not designated as hedging instruments
Gains (losses) on fair value hedge relationships:
Derivative Instruments - Non-designated	(10.6)	(6.2)	(17.0)	306.8
Commodity contracts | Interest expense and other financing costs, net
Gains (losses) on fair value hedge relationships:
Hedged item	0.0	0.0	0.0	0.0
Derivatives designated as hedging instruments	0.0	0.0	0.0	0.0
Amount of gain (loss) reclassified from Accumulated other comprehensive income (loss) into net income	0.0	0.0	0.0	0.0
Interest rate contracts | Revenue
Gains (losses) on fair value hedge relationships:
Amount of gain (loss) reclassified from Accumulated other comprehensive income (loss) into net income	0.0	0.0	0.0	0.0
Interest rate contracts | Cost of revenue
Gains (losses) on fair value hedge relationships:
Amount of gain (loss) reclassified from Accumulated other comprehensive income (loss) into net income	0.0	0.0	0.0	0.0
Interest rate contracts | Interest expense and other financing costs, net
Gains (losses) on fair value hedge relationships:
Amount of gain (loss) reclassified from Accumulated other comprehensive income (loss) into net income	(0.2)	(0.3)	(0.5)	(0.5)
Interest rate contracts | Interest expense and other financing costs, net | Derivatives designated as hedging instruments
Gains (losses) on fair value hedge relationships:
Amount of Gain (Loss) Recognized in Accumulated other comprehensive income (loss), Net of Income Tax (Expense) Benefit	1.4	(0.7)	10.0	3.0
Amount of Gain (Loss) Reclassified from Accumulated other comprehensive income (loss) into Net income (loss), Net of Income Tax (Expense) Benefit	(0.1)	(0.3)	(0.4)	(0.5)
Foreign currency contracts | Derivatives not designated as hedging instruments
Gains (losses) on fair value hedge relationships:
Derivative Instruments - Non-designated	6.8	(1.7)	3.9	2.0
Foreign currency contracts | Revenue | Derivatives not designated as hedging instruments
Gains (losses) on fair value hedge relationships:
Derivative Instruments - Non-designated	0.7	(0.2)	0.1	0.1
Foreign currency contracts | Interest expense and other financing costs, net | Derivatives not designated as hedging instruments
Gains (losses) on fair value hedge relationships:
Derivative Instruments - Non-designated	$ 6.2	$ (1.5)	$ 3.9	$ 1.8