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Comprehensive Income (Tables) | 9 Months Ended
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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

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580 + Details
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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e526-108580 + Details
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