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Employee Benefit Plans (Tables)
 9 Months Ended
Sep. 30, 2017
Components of Net Periodic Benefit Cost (Income)
The following tables provide the components of net periodic benefit cost (income) (in millions):
 
 
Pension Benefits
 
Retiree Medical and Other
Postretirement Benefits
Three Months Ended September 30,
 
2017
 
2016
 
2017
 
2016
Service cost
 
$
1

 
$
1

 
$
1

 
$
1

Interest cost
 
180

 
187

 
10

 
12

Expected return on assets
 
(198
)
 
(188
)
 
(5
)
 
(5
)
Amortization of:
 
 
 
 
 
 
 
 
Prior service cost (benefit)
 
7

 
7

 
(59
)
 
(60
)
Unrecognized net loss (gain)
 
36

 
32

 
(6
)
 
(4
)
Net periodic benefit cost (income)
 
$
26

 
$
39

 
$
(59
)
 
$
(56
)
 
 
 
 
 
 
 
 
 
 
 
Pension Benefits
 
Retiree Medical and Other
Postretirement Benefits
Nine Months Ended September 30,
 
2017
 
2016
 
2017
 
2016
Service cost
 
$
2

 
$
2

 
$
3

 
$
2

Interest cost
 
541

 
562

 
29

 
36

Expected return on assets
 
(592
)
 
(562
)
 
(16
)
 
(15
)
Amortization of:
 
 
 
 
 
 
 
 
Prior service cost (benefit)
 
21

 
21

 
(178
)
 
(180
)
Unrecognized net loss (gain)
 
108

 
95

 
(17
)
 
(12
)
Net periodic benefit cost (income)
 
$
80

 
$
118

 
$
(179
)
 
$
(169
)
American Airlines, Inc. [Member]  
Components of Net Periodic Benefit Cost (Income)
The following tables provide the components of net periodic benefit cost (income) (in millions):
 
 
Pension Benefits
 
Retiree Medical and Other
Postretirement Benefits
Three Months Ended September 30,
 
2017
 
2016
 
2017
 
2016
Service cost
 
$
—

 
$
—

 
$
1

 
$
1

Interest cost
 
179

 
186

 
10

 
12

Expected return on assets
 
(197
)
 
(187
)
 
(5
)
 
(5
)
Amortization of:
 
 
 
 
 
 
 
 
Prior service cost (benefit)
 
7

 
7

 
(59
)
 
(60
)
Unrecognized net loss (gain)
 
36

 
32

 
(6
)
 
(4
)
Net periodic benefit cost (income)
 
$
25

 
$
38

 
$
(59
)
 
$
(56
)
 
 
 
 
 
 
 
 
 
 
 
Pension Benefits
 
Retiree Medical and Other
Postretirement Benefits
Nine Months Ended September 30,
 
2017
 
2016
 
2017
 
2016
Service cost
 
$
1

 
$
1

 
$
3

 
$
2

Interest cost
 
538

 
559

 
29

 
36

Expected return on assets
 
(589
)
 
(560
)
 
(16
)
 
(15
)
Amortization of:
 
 
 
 
 
 
 
 
Prior service cost (benefit)
 
21

 
21

 
(178
)
 
(180
)
Unrecognized net loss (gain)
 
108

 
94

 
(17
)
 
(12
)
Net periodic benefit cost (income)
 
$
79

 
$
115

 
$
(179
)
 
$
(169
)