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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Unrecorded Unconditional Purchase Obligations Disclosure
As of December 31, 2021, these commitments were as follows:
(In millions)
Commitments (1)
2022$31 
202317 
202413 
202517 
20266 
2027 and thereafter
21 
 $105 
(1)Includes energy purchase obligations of $31 million through 2027 for certain of our tissue, pulp and paper mills.