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Comprehensive Income (Tables) | 3 Months Ended
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Mar. 31, 2016
Equity [Abstract] |
Components of Comprehensive Income | The differences between Net income and Comprehensive income for the three months ended March 31, 2016 and 2015, were as follows:
| Three months ended March 31,
(in millions) | 2016 |  | 2015
NET INCOME | $ | 511 |  |  | $ | 453 |
Unrealized gain (loss) on fuel derivative instruments, net of deferred taxes of $93 and ($1) | 160 |  |  | (3 | )
Unrealized loss on interest rate derivative instruments, net of deferred taxes of ($1) and $- | (3 | ) |  | (1 | )
Total other comprehensive income (loss) | $ | 157 |  |  | $ | (4 | )
COMPREHENSIVE INCOME | $ | 668 |  |  | $ | 449 |
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 months ended March 31, 2016:
(in millions) | Fuel derivatives |  | Interest rate derivatives |  | Defined benefit plan items |  | Other |  | Deferred tax |  | Accumulated other comprehensive income (loss)
Balance at December 31, 2015 | $ | (1,666 | ) |  | $ | (30 | ) |  | $ | 22 |  |  | $ | 6 |  |  | $ | 617 |  |  | $ | (1,051 | )
Changes in fair value | (57 | ) |  | (8 | ) |  | — |  |  | — |  |  | 25 |  |  | (40 | )
Reclassification to earnings | 310 |  |  | 4 |  |  | — |  |  | — |  |  | (117 | ) |  | 197 |
Balance at March 31, 2016 | $ | (1,413 | ) |  | $ | (34 | ) |  | $ | 22 |  |  | $ | 6 |  |  | $ | 525 |  |  | $ | (894 | )
Reclassification out of Accumulated Other Comprehensive Income | The following table illustrates the significant amounts reclassified out of each component of AOCI for the three months ended March 31, 2016:
Three months ended March 31, 2016
(in millions) |  | Amounts reclassified from AOCI |  | Affected line item in the unaudited Condensed Consolidated Statement of Comprehensive Income
AOCI components |  |
Unrealized loss on fuel derivative instruments |  | $ | 310 |  |  | Fuel and oil expense
|  | 115 |  |  | Less: Tax Expense
|  | $ | 195 |  |  | Net of tax
Unrealized loss on interest rate derivative instruments |  | $ | 4 |  |  | Interest expense
|  | 2 |  |  | Less: Tax Expense
|  | $ | 2 |  |  | Net of tax
Total reclassifications for the period |  | $ | 197 |  |  | 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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