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Other Long-Term Liabilities (Tables)
 6 Months Ended
Jun. 30, 2021
Other Liabilities Disclosure [Abstract]  
Components of Other Long-Term Liabilities

Components of other long-term liabilities include the following:

 

 

 

June 30, 2021

 

 

December 31, 2020

 

Assumed gathering, processing and transportation contracts

 

$

474

 

 

$

—

 

Pension and postretirement benefit obligations

 

 

227

 

 

 

243

 

Commodity derivatives

 

 

157

 

 

 

5

 

Restructuring and transaction costs

 

 

122

 

 

 

137

 

Estimated future obligation under a performance guarantee

 

 

95

 

 

 

—

 

Other

 

 

173

 

 

 

166

 

Total other long-term liabilities

 

$

1,248

 

 

$

551