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Litigation and Environmental - Other Commercial Matters (Details) - Hiland Partners Holdings, LLC - Pending Litigation $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($)	Jun. 01, 2018 projects
Loss Contingencies [Line Items]
Infrastructures to Build for Settlement | projects		10
Loss Contingency, Damages Sought, Value | $	$ 225

X

- Definition

Infrastructures to Build for Settlement

+ References

No definition available.

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X

- 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.

+ References

No definition available.

+ Details

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X

- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
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