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Comprehensive Income (Tables)
 9 Months Ended
Sep. 30, 2014
Equity [Abstract]  
Components of Comprehensive Income
The differences between Net income and Comprehensive income for the three and nine months ended September 30, 2014 and 2013 were as follows:

 
Three months ended September 30,
(in millions)
2014
 
2013
NET INCOME
$
329

 
$
259

Unrealized gain (loss) on fuel derivative instruments, net of
  deferred taxes of ($124) and $76
(210
)
 
129

Unrealized gain on interest rate derivative instruments, net of
  deferred taxes of $3 and $2
6

 
2

Other, net of deferred taxes of $1 and $2
1

 
3

Total other comprehensive income (loss)
$
(203
)
 
$
134

COMPREHENSIVE INCOME
$
126

 
$
393


 
Nine months ended September 30,
(in millions)
2014
 
2013
NET INCOME
$
946

 
$
542

Unrealized loss on fuel derivative instruments, net of
  deferred taxes of ($60) and ($16)
(101
)
 
(25
)
Unrealized gain on interest rate derivative instruments, net of
  deferred taxes of $4 and $16
8

 
26

Other, net of deferred taxes of $4 and $6
4

 
4

Total other comprehensive income (loss)
$
(89
)
 
$
5

COMPREHENSIVE INCOME
$
857


$
547
Rollforward of the Amounts Included in AOCI, Net of Taxes
A rollforward of the amounts included in AOCI, net of taxes, is shown below for the three and nine months ended September 30, 2014:

(in millions)
Fuel derivatives
 
Interest rate derivatives
 
Defined benefit plan items
 
Other
 
Deferred tax
 
Accumulated other
comprehensive income (loss)
Balance at June 30, 2014
$
153

 
$
(55
)
 
$
65

 
$
14

 
$
(66
)
 
$
111

Changes in fair value
(340
)
 
3

 
—

 
2

 
124

 
(211
)
Reclassification to earnings
6

 
6

 
—

 
—

 
(4
)
 
8

Balance at September 30, 2014
$
(181
)
 
$
(46
)
 
$
65

 
$
16

 
$
54

 
$
(92
)


(in millions)
Fuel derivatives
 
Interest rate derivatives
 
Defined benefit plan items
 
Other
 
Deferred tax
 
Accumulated other
comprehensive income (loss)
Balance at December 31, 2013
$
(20
)
 
$
(58
)
 
$
65

 
$
8

 
$
2

 
$
(3
)
Changes in fair value
(165
)
 
(5
)
 
—

 
8

 
60

 
(102
)
Reclassification to earnings
4

 
17

 
—

 
—

 
(8
)
 
13

Balance at September 30, 2014
$
(181
)
 
$
(46
)
 
$
65

 
$
16

 
$
54

 
$
(92
)
Reclassification out of Accumulated Other Comprehensive Income
The following tables illustrate the significant amounts reclassified out of each component of AOCI for the three and nine months ended September 30, 2014:

Three months ended September 30, 2014
(in millions)
 
Amounts reclassified from AOCI
 
Affected line item in the unaudited Condensed Consolidated Statement of Comprehensive Income
AOCI components
 
 
Unrealized gain on fuel derivative instruments
 
$
6

 
Fuel and oil expense
 
 
2

 
Less: Tax Expense
 
 
$
4

 
Net of tax
Unrealized gain on interest rate derivative instruments
 
$
6

 
Interest expense
 
 
2

 
Less: Tax Expense
 
 
$
4

 
Net of tax
 
 
 
 
 
Total reclassifications for the period
 
$
8

 
Net of tax

Nine months ended September 30, 2014
(in millions)
 
Amounts reclassified from AOCI
 
Affected line item in the unaudited Condensed Consolidated Statement of Comprehensive Income
AOCI components
 
 
Unrealized gain on fuel derivative instruments
 
$
4

 
Fuel and oil expense
 
 
1

 
Less: Tax Expense
 
 
$
3

 
Net of tax
Unrealized gain on interest rate derivative instruments
 
$
17

 
Interest expense
 
 
7

 
Less: Tax Expense
 
 
$
10

 
Net of tax
 
 
 
 
 
Total reclassifications for the period
 
$
13

 
Net of tax