Derivative Instruments and Hedging Activities - Amounts Included in OCI, Income and AOCI (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Gain (loss) reclassified from OCI into income (effective portion) | $ 10.3 | $ 27.7 | $ 10.1 | $ 21.6 |
| Commodity Contracts [Member] | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Gain (loss) recognized in OCI on derivatives (effective portion) | (10.3) | (27.7) | (10.1) | (21.6) |
| Commodity Contracts [Member] | Revenues [Member] | Not Designated as Hedging Instrument [Member] | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Gain (loss) recognized in income on derivatives | (68.1) | 206.2 | (311.6) | (79.0) |
| Cash Flow Hedging [Member] | Commodity Contracts [Member] | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Gain (loss) recognized in OCI on derivatives (effective portion) | $ 126.0 | $ 75.8 | $ (40.9) | $ 42.0 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, before tax and adjustments, of gain (loss) from increase (decrease) in value of excluded component of derivative designated and qualifying as hedge. Adjustments include, but are not limited to, reclassifications for sale and settlement, and amounts recognized under systematic and rational method. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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