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Derivative Instruments - Effect on Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Hedged Asset, Fair Value Hedge	$ 65.0		$ 65.0		$ 60.7
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	6.4		6.4		1.2
Gain (loss) on derivative
Total revenue	12,245.3	$ 15,661.3	35,707.6	$ 45,165.4
Cost of Revenue	11,963.9	15,339.0	34,881.8	44,358.7
Effect of Fair Value Hedges on Results of Operations [Abstract]
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net			0.0	0.0
Derivative, Credit Risk Related Contingent Features [Abstract]
Derivative, Net Liability Position, Aggregate Fair Value	100.5		100.5		72.5
Collateral Already Posted, Aggregate Fair Value	0.0		0.0		(28.7)
Additional Collateral, Aggregate Fair Value	100.6		100.6		$ 43.8
Designated as Hedging Instrument [Member]
Summary of Cash Flow Hedge Activity [Abstract]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	(0.1)	1.2	3.4	(98.4)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax	5.3	(13.9)	9.9	(121.3)
Not Designated as Hedging Instrument [Member]
Summary of Cash Flow Hedge Activity [Abstract]
Derivative, Gain (Loss) on Derivative, Net	(47.7)	101.1	(213.7)	236.9
Sales [Member]
Gain (loss) on derivative
Total revenue	12,245.3	15,661.3	35,707.6	45,165.4
Summary of Cash Flow Hedge Activity [Abstract]
Total amount of income and expense line items excluding the impact of hedges, Revenue	12,245.3	15,681.4	35,706.6	45,331.2
Cost of Sales [Member]
Gain (loss) on derivative
Cost of Revenue	11,963.9	15,339.0	34,881.8	44,358.7
Summary of Cash Flow Hedge Activity [Abstract]
Total amount of income and expense line items excluding the impact of hedges, Cost of Revenue	11,970.1	15,340.6	34,887.4	44,350.4
Interest Expense And Other Financing Costs [Member]
Gain (loss) on derivative
Interest Expense And Other Financing Costs	28.6	34.0	95.4	74.8
Summary of Cash Flow Hedge Activity [Abstract]
Total amount of income and expense line items excluding the impact of hedges, Interest expense and other financing costs	32.3	32.7	105.7	73.0
Commodity Contract [Member] | Not Designated as Hedging Instrument [Member]
Summary of Cash Flow Hedge Activity [Abstract]
Derivative, Gain (Loss) on Derivative, Net	(45.2)	86.6	(206.4)	218.5
Commodity Contract [Member] | Sales [Member]
Effect of Fair Value Hedges on Results of Operations [Abstract]
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	0.0	0.0	0.0	0.0
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0.0	0.0	0.0	0.0
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0.0	0.0
Summary of Cash Flow Hedge Activity [Abstract]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	0.0	(20.1)	1.1	(165.7)
Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0.0	0.0
Commodity Contract [Member] | Sales [Member] | Designated as Hedging Instrument [Member]
Summary of Cash Flow Hedge Activity [Abstract]
Derivative, Gain (Loss) on Derivative, Not Recorded In Accumulated Other Comprehensive Income (Loss) Due To Intra-Period Settlement, After Tax	(1.3)	3.1	(1.6)	(128.4)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	(0.6)	(5.5)	0.1	(114.5)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax	0.0	(14.8)	0.8	(121.8)
Commodity Contract [Member] | Sales [Member] | Not Designated as Hedging Instrument [Member]
Summary of Cash Flow Hedge Activity [Abstract]
Derivative, Gain (Loss) on Derivative, Net	(28.3)	80.3	(171.0)	229.2
Commodity Contract [Member] | Cost of Sales [Member]
Effect of Fair Value Hedges on Results of Operations [Abstract]
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	10.3	(5.8)	6.1	36.4
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	(7.8)	5.0	(2.5)	(47.1)
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0.0	0.0
Summary of Cash Flow Hedge Activity [Abstract]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	3.6	2.5	2.1	2.5
Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0.0	0.0
Commodity Contract [Member] | Cost of Sales [Member] | Designated as Hedging Instrument [Member]
Summary of Cash Flow Hedge Activity [Abstract]
Derivative, Gain (Loss) on Derivative, Not Recorded In Accumulated Other Comprehensive Income (Loss) Due To Intra-Period Settlement, After Tax	3.9	(2.9)	(1.6)	8.8
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	(0.8)	2.7	(1.0)	2.0
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax	2.6	1.8	1.5	1.8
Commodity Contract [Member] | Cost of Sales [Member] | Not Designated as Hedging Instrument [Member]
Summary of Cash Flow Hedge Activity [Abstract]
Derivative, Gain (Loss) on Derivative, Net	(16.9)	6.3	(35.4)	(10.7)
Commodity Contract [Member] | Interest Expense And Other Financing Costs [Member]
Effect of Fair Value Hedges on Results of Operations [Abstract]
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	0.0	0.0	0.0	0.0
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0.0	0.0	0.0	0.0
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0.0	0.0
Summary of Cash Flow Hedge Activity [Abstract]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	0.0	0.0	0.0	0.0
Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0.0	0.0
Interest Rate Contract [Member] | Sales [Member]
Summary of Cash Flow Hedge Activity [Abstract]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	0.0	0.0	0.0	0.0
Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0.0	0.0
Interest Rate Contract [Member] | Cost of Sales [Member]
Summary of Cash Flow Hedge Activity [Abstract]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	0.0	0.0	0.0	0.0
Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0.0	0.0
Interest Rate Contract [Member] | Interest Expense And Other Financing Costs [Member]
Summary of Cash Flow Hedge Activity [Abstract]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	3.8	(1.3)	10.3	(1.8)
Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0.0	0.0
Interest Rate Contract [Member] | Interest Expense And Other Financing Costs [Member] | Designated as Hedging Instrument [Member]
Summary of Cash Flow Hedge Activity [Abstract]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	1.2	4.1	4.4	14.1
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax	2.7	(0.9)	7.5	(1.3)
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member]
Summary of Cash Flow Hedge Activity [Abstract]
Derivative, Gain (Loss) on Derivative, Net	(2.5)	14.5	(7.3)	18.4
Foreign Exchange Contract [Member] | Sales [Member] | Not Designated as Hedging Instrument [Member]
Summary of Cash Flow Hedge Activity [Abstract]
Derivative, Gain (Loss) on Derivative, Net	(0.2)	0.3	(5.9)	0.4
Foreign Exchange Contract [Member] | Interest Expense And Other Financing Costs [Member] | Not Designated as Hedging Instrument [Member]
Summary of Cash Flow Hedge Activity [Abstract]
Derivative, Gain (Loss) on Derivative, Net	$ (2.2)	$ 14.2	$ (1.5)	$ 18.1

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The aggregate fair value of additional assets that would be required to be posted as collateral for derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period.

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