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SPECIAL CHARGES (Tables)
12 Months Ended
Dec. 31, 2024
Restructuring and Related Activities [Abstract]  
Components of Special Charges
For the years ended December 31, operating and nonoperating special charges and unrealized (gains) losses on investments in the statements of consolidated operations consisted of the following (in millions):
202420232022
(Gains) losses on sale of assets and other special charges$112 $135 $140 
Labor contract ratification bonuses— 814 — 
Total operating special charges112 949 140 
Nonoperating unrealized (gains) losses on investments, net199 (27)(20)
Nonoperating debt extinguishment and modification fees128 11 
Total nonoperating special charges and unrealized (gains) losses on investments, net327 (16)(13)
Total operating and nonoperating special charges and unrealized (gains) losses on investments, net439 933 127 
Income tax benefit, net of valuation allowance(54)(214)(33)
Total operating and nonoperating special charges and unrealized (gains) losses on investments, net of income taxes$385 $719 $94