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SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION - Plants, Property and Equipment, Net (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Other Significant Noncash Transactions [Line Items]      
Accumulated depreciation $ 3,800,000,000   $ 3,600,000,000
Depreciation 33,000,000 $ 33,000,000  
Property, Plant and Equipment [Member]      
Other Significant Noncash Transactions [Line Items]      
Non-cash additions 14,000,000   12,000,000
Forestlands [Member]      
Other Significant Noncash Transactions [Line Items]      
Non-cash additions $ 0   $ 10,000,000