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Commitments and Contingencies Energy Minimum Required Payments Table (Details) - Energy Segment
$ in Millions
Dec. 31, 2017
USD ($)
Loss Contingencies [Line Items]  
2018 $ 165
2019 124
2020 101
2021 90
2022 85
Thereafter 542
Minimum required payments for unconditional purchase obligations $ 1,107 [1]
[1] This amount includes $699 million payable ratably over thirteen years pursuant to petroleum transportation service agreements between Coffeyville Resources Refining Marketing, LLC ("CRRM") and each of TransCanada Keystone Limited Partnership and TransCanada Keystone Pipeline, LP (together, "TransCanada"). The purchase obligation reflects the exchange rate between the Canadian dollar and the U.S. dollar as of December 31, 2017, where applicable. Under the agreements, CRRM receives transportation of at least 25,000 barrels per day of crude oil with a delivery point at Cushing, Oklahoma for a term of twenty years on TransCanada's Keystone pipeline system.