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Mineral Leaseholds, Net
 6 Months Ended
Jun. 30, 2023
Extractive Industries [Abstract]  
Mineral Leaseholds, Net Mineral Leaseholds, Net
Mineral leaseholds, net of accumulated depletion, consisted of the following:
June 30, 2023December 31, 2022
Mineral leaseholds$1,251 $1,282 
Less: accumulated depletion(589)(581)
Mineral leaseholds, net$662 $701 

Depletion expense relating to mineral leaseholds recorded in “Cost of goods sold” in the unaudited Condensed Consolidated Statements of Operations was $7 million for both the three months ended June 30, 2023 and 2022. Depletion expense relating to mineral leaseholds recorded in "Cost of goods sold" in the unaudited Condensed Consolidated Statements of Operations was $15 million for both the six months ended June 30, 2023 and 2022.