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COMPREHENSIVE INCOME | 3 Months Ended
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Mar. 31, 2017
Equity [Abstract] |
COMPREHENSIVE INCOME | COMPREHENSIVE INCOME Comprehensive income includes changes in the fair value of certain financial derivative instruments that qualify for hedge accounting, unrealized gains and losses on certain investments, and actuarial gains/losses arising from the Company’s postretirement benefit obligation. The differences between Net income and Comprehensive income for the three months ended March 31, 2017 and 2016 were as follows:
| Three months ended March 31,
(in millions) | 2017 |  | 2016
NET INCOME | $ | 351 |  |  | $ | 513 |
Unrealized gain on fuel derivative instruments, net of deferred taxes of $5 and $93 | 9 |  |  | 160 |
Unrealized gain (loss) on interest rate derivative instruments, net of deferred taxes of $1 and ($1) | 2 |  |  | (3 | )
Total other comprehensive income | $ | 11 |  |  | $ | 157 |
COMPREHENSIVE INCOME | $ | 362 |  |  | $ | 670 |
A rollforward of the amounts included in AOCI, net of taxes, is shown below for the three months ended March 31, 2017:
(in millions) | Fuel derivatives |  | Interest rate derivatives |  | Defined benefit plan items |  | Other |  | Deferred tax |  | Accumulated other comprehensive income (loss)
Balance at December 31, 2016 | $ | (499 | ) |  | $ | (18 | ) |  | $ | (14 | ) |  | $ | 20 |  |  | $ | 188 |  |  | $ | (323 | )
Changes in fair value | (125 | ) |  | — |  |  | — |  |  | — |  |  | 46 |  |  | (79 | )
Reclassification to earnings | 139 |  |  | 3 |  |  | — |  |  | — |  |  | (52 | ) |  | 90 |
Balance at March 31, 2017 | $ | (485 | ) |  | $ | (15 | ) |  | $ | (14 | ) |  | $ | 20 |  |  | $ | 182 |  |  | $ | (312 | )
The following table illustrates the significant amounts reclassified out of each component of AOCI for the three months ended March 31, 2017:
Three months ended March 31, 2017
(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 |  | $ | 139 |  |  | Fuel and oil expense
|  | 51 |  |  | Less: Tax expense
|  | $ | 88 |  |  | Net of tax
Unrealized loss on interest rate derivative instruments |  | $ | 3 |  |  | Interest expense
|  | 1 |  |  | Less: Tax expense
|  | $ | 2 |  |  | Net of tax
Total reclassifications for the period |  | $ | 90 |  |  | Net of tax

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e689-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669619-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e640-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e716-108580 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e709-108580 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e637-108580 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e681-108580 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Reclassification Adjustments -URI http://asc.fasb.org/extlink&oid=6522872 + Details
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