XML 474 R54.htm IDEA: XBRL DOCUMENT v3.23.3
Special Charges - Components of Special Charges (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Other Income and Expenses [Abstract]        
Labor contract ratification bonuses $ 1 $ 0 $ 814 $ 0
(Gains) losses on sale of assets and other special charges 28 20 88 124
Total operating special charges 29 20 902 124
Nonoperating unrealized (gains) losses on investments, net 54 (28) (54) 12
Nonoperating debt extinguishment and modification fees 0 0 11 7
Total nonoperating special charges and unrealized (gains) losses on investments, net 54 (28) (43) 19
Total operating and nonoperating special charges and unrealized (gains) losses on investments, net 83 (8) 859 143
Income tax benefit, net of valuation allowance (7) (7) (204) (17)
Total operating and nonoperating special charges and unrealized (gains) losses on investments, net of income taxes $ 76 $ (15) $ 655 $ 126