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Revenue from Contracts with Customers (Narrative) (Details) T in Millions, $ in Millions | 12 Months Ended
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Dec. 31, 2022 USD ($) agreement T
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Number of coke sales agreements with fixed operating costs | 3
Number of coke sales agreements with operating costs passed through to customers | 4
Cokemaking |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Unsatisfied performance obligation (in tons) | T | 10.9
Average remaining term | 5 years
Logistics |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Average remaining term | 4 years
Performance obligation amount | $ | $ 51.4

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