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Commitments and Contingencies
12 Months Ended
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies COMMITMENTS AND CONTINGENCIES
From time to time, DT Midstream is subject to legal, administrative and environmental proceedings before various courts, arbitration panels and governmental agencies concerning claims arising in the ordinary course of business. These proceedings include certain contract disputes, additional environmental reviews and investigations, audits and pending judicial matters. DT Midstream cannot predict the final disposition of such proceedings. DT Midstream regularly reviews legal matters and records provisions for claims that we can estimate and are considered probable of loss. The amount or range of reasonably possible losses is not anticipated to, either individually or in the aggregate, materially adversely affect DT Midstream’s business, financial condition and results of operations.
Guarantees
In certain limited circumstances, DT Midstream enters into contractual guarantees. DT Midstream may guarantee another entity's obligation in the event it fails to perform and may provide guarantees in certain indemnification agreements. Additionally, DT Midstream may provide indirect guarantees for the indebtedness of others. In connection with the Separation, DT Midstream assumed guarantees valued at $7 million as of December 31, 2021. Payment under these guarantees are considered remote. DT Midstream did not have any guarantees of other parties' obligations as of December 31, 2021.
Purchase Commitments
As of December 31, 2021, DT Midstream was party to long-term purchase commitments relating to a variety of goods and services required for their business. DT Midstream estimates lifetime purchase commitments of approximately $12 million.

(millions)
2022$
2023
2024
2025
2026
2027 and thereafter— 
Total$12 
Vector Pipeline Line of Credit

In July 2021 and in conjunction with the Separation, DT Midstream assumed the Vector Pipeline line of credit from DTE Energy. DT Midstream became the lender under the revolving term credit facility to Vector Pipeline, the borrower, in the amount of Canadian $70 million. The credit facility was initially executed in response to the passage of Canadian regulations requiring oil and gas pipelines to demonstrate their financial ability to respond to a catastrophic event and exists for the sole purpose of satisfying these regulations. Vector Pipeline may only draw upon the facility if the funds are required to respond to a catastrophic event. The maximum potential payout at December 31, 2021 is USD $55 million. The funding of a loan under the terms of the credit facility is considered remote.
Bankruptcies
DT Midstream’s Gathering segment provides gas gathering services under customer contracts with gas shippers in the Utica and Marcellus regions in Pennsylvania and West Virginia. In December 2019, one of these customers, Arsenal Resources, entered into bankruptcy. The Bankruptcy Court issued an order approving a plan to be followed in connection with the bankruptcy with an effective date of January 7, 2020. As of December 31, 2019, DT Midstream recorded an allowance for expected credit loss of approximately $8 million against a portion of its accounts receivable from Arsenal Resources.

In 2020, DT Midstream received payments of approximately $4 million from Arsenal Resources under the terms of a cure agreement. There was no allowance for expected credit loss remaining at December 31, 2020.
Environmental Contingencies
In order to comply with certain state environmental regulations, DT Midstream has an obligation to restore pipeline right-of-way slope failures that may arise in the ordinary course of business in the Utica and Marcellus shale region. Slope restoration expenditures are typically capital in nature. As of December 31, 2021 and 2020, DT Midstream had accrued contingent liabilities of $20 million and $23 million, respectively, for future slope restoration expenditures. The accrual is included in Other current liabilities and Other liabilities in the Consolidated Statements of Financial Position. DT Midstream believes the accrued amounts are sufficient to cover estimated future expenditures.
COVID-19 Pandemic
DT Midstream is actively monitoring the impact of the COVID-19 pandemic on supply chains, markets, counterparties, and customers, and any related impacts on operating costs, customer demand, and recoverability of assets that could materially impact DT Midstream’s financial results.
There have been no material adjustments or reserves deemed necessary to the financial statements as of December 31, 2021 as a result of COVID-19. DT Midstream cannot predict the future impacts of the COVID-19 pandemic on the Consolidated Financial Statements, as developments involving COVID-19 and its related effects on economic and operating conditions remain highly uncertain.