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Special Charges (Tables)
6 Months Ended
Jun. 30, 2024
Restructuring and Related Activities [Abstract]  
Schedule of Components of Special Charges
For the three and six months ended June 30, operating and nonoperating special charges and unrealized (gains) losses on investments in the statements of consolidated operations consisted of the following (in millions):
Three Months Ended
June 30,
Six Months Ended
June 30,
2024202320242023
Operating:
(Gains) losses on sale of assets and other special charges$36 $46 $49 $60 
Labor contract ratification bonuses— 813 — 813 
Total operating special charges36 859 49 873 
Nonoperating:
Nonoperating unrealized (gains) losses on investments, net33 (84)70 (108)
Nonoperating debt extinguishment and modification fees— 11 35 11 
Total nonoperating special charges and unrealized (gains) losses on investments, net33 (73)105 (97)
Total operating and nonoperating special charges and unrealized (gains) losses on investments, net69 786 154 776 
Income tax benefit, net of valuation allowance (8)(194)(19)(197)
Total operating and nonoperating special charges and unrealized (gains) losses on investments, net of income taxes$61 $592 $135 $579