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SUPPLEMENTAL FINANCIAL STATEMENT INFORMATION Current Investments Footnote (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2022
USD ($)
Dec. 31, 2021
Jun. 30, 2022
USD ($)
Debt and Equity Securities, FV-NI [Line Items]      
Percentage of ownership retained   19.90%  
Notes Reduction     $ 11
Sylvamo Corporation Investment      
Debt and Equity Securities, FV-NI [Line Items]      
Aggregate Untis Exchanged - Sylvamo Corporation Investment 4,132,000    
Percentage of ownership retained 10.50%    
Notes Reduction $ 144    
Sale of Stock, Ownership Shares after Transaction 4,614,358    
Tax Benefit on Exchange of Sylvamo Shares $ 31