XML 90 R36.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Special Charges and Unrealized (Gains) Losses on Investments (Tables)
 12 Months Ended
Dec. 31, 2019
Restructuring and Related Activities [Abstract]  
Components of Special Charges
Special charges and unrealized gains and losses on investments in the statements of consolidated operations consisted of the following for the years ended December 31 (in millions):
Operating:
 
2019
 
2018
 
2017
Impairment of assets
 
$
171

 
$
377

 
$
25

Severance and benefit costs
 
16

 
41

 
116

Termination of an engine maintenance service agreement
 
—

 
64

 
—

(Gains) losses on sale of assets and other special charges
 
59

 
5

 
35

Total operating special charges
 
246

 
487

 
176

Nonoperating unrealized (gains) losses on investments
 
(153
)
 
5

 
—

Total special charges and unrealized (gains) losses on investments
 
93

 
492

 
176

Income tax benefit
 
(21
)
 
(110
)
 
(63
)
Income tax adjustments (Note 6)
 
—

 
(5
)
 
(189
)
Total special charges and unrealized (gains) losses on investments, net of income taxes and income tax adjustments
 
$
72

 
$
377

 
$
(76
)