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Accumulated Other Comprehensive Income (Loss) (Tables) | 6 Months Ended
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Jun. 30, 2017
Components of Accumulated Other Comprehensive Income (Loss), Net of Tax | The tables below present the components of the Company’s accumulated other comprehensive income (loss), net of tax (“AOCI”) (in millions):
|  |  |  |  |  |  |  |  |  |  |  |  | Deferred Taxes |  |  |  |
UAL |  |  |  | Pension and Other Postretirement Liabilities |  |  | Fuel Derivative Contracts |  |  | Investments and Other |  |  | Pension and Other Postretirement Liabilities |  |  | Fuel Derivative Contracts |  |  | Investments and Other |  |  | Total |
Balance at March 31, 2017 |  |  |  | $ | (867) |  |  | $ | — |  |  | $ | 1 |  |  | $ | 29 |  |  | $ | — |  |  | $ | 1 |  |  | $ | (836) |
Changes in value |  |  |  |  | (7) |  |  |  | — |  |  |  | (17) |  |  |  | 2 |  |  |  | — |  |  |  | 6 |  |  |  | (16) |
Amounts reclassified to earnings |  |  |  |  | 14 |  |  |  | — |  |  |  | — |  |  |  | (5) |  |  |  | — |  |  |  | (1) |  |  |  | 8 |
Net change |  |  |  |  | 7 |  |  |  | — |  |  |  | (17) |  |  |  | (3) |  |  |  | — |  |  |  | 5 |  |  |  | (8) |
Balance at June 30, 2017 |  |  |  | $ | (860) |  |  | $ | — |  |  | $ | (16) |  |  | $ | 26 |  |  | $ | — |  |  | $ | 6 |  |  | $ | (844) |
Balance at December 31, 2016 |  |  |  | $ | (854) |  |  | $ | (2) |  |  | $ | 1 |  |  | $ | 24 |  |  | $ | 1 |  |  | $ | 1 |  |  | $ | (829) |
Changes in value |  |  |  |  | (33) |  |  |  | — |  |  |  | (17) |  |  |  | 12 |  |  |  | — |  |  |  | 6 |  |  |  | (32) |
Amounts reclassified to earnings |  |  |  |  | 27 |  |  |  | 2 |  |  |  | — |  |  |  | (10) |  |  |  | (1) |  |  |  | (1) |  |  |  | 17 |
Net change |  |  |  |  | (6) |  |  |  | 2 |  |  |  | (17) |  |  |  | 2 |  |  |  | (1) |  |  |  | 5 |  |  |  | (15) |
Balance at June 30, 2017 |  |  |  | $ | (860) |  |  | $ | — |  |  | $ | (16) |  |  | $ | 26 |  |  | $ | — |  |  | $ | 6 |  |  | $ | (844) |
|  |  |  |  |  |  |  |  |  |  |  |  | Deferred Taxes |  |  |  |
UAL |  |  |  | Pension and Other Postretirement Liabilities |  |  | Fuel Derivative Contracts |  |  | Investments and Other |  |  | Pension and Other Postretirement Liabilities |  |  | Fuel Derivative Contracts |  |  | Investments and Other |  |  | Total |
Balance at March 31, 2016 |  |  |  | $ | (401) |  |  | $ | (93) |  |  | $ | 3 |  |  | $ | (140) |  |  | $ | (146) |  |  | $ | — |  |  | $ | (777) |
Changes in value |  |  |  |  | 10 |  |  |  | 17 |  |  |  | — |  |  |  | (4) |  |  |  | (6) |  |  |  | — |  |  |  | 17 |
Amounts reclassified to earnings |  |  |  |  | 6 |  |  |  | 35 |  |  |  | — |  |  |  | (2) |  |  |  | (13) |  |  |  | — |  |  |  | 26 |
Net change |  |  |  |  | 16 |  |  |  | 52 |  |  |  | — |  |  |  | (6) |  |  |  | (19) |  |  |  | — |  |  |  | 43 |
Balance at June 30, 2016 |  |  |  | $ | (385) |  |  | $ | (41) |  |  | $ | 3 |  |  | $ | (146) |  |  | $ | (165) |  |  | $ | — |  |  | $ | (734) |
Balance at December 31, 2015 |  |  |  | $ | (363) |  |  | $ | (215) |  |  | $ | 3 |  |  | $ | (154) |  |  | $ | (102) |  |  | $ | — |  |  | $ | (831) |
Changes in value |  |  |  |  | (33) |  |  |  | 1 |  |  |  | — |  |  |  | 12 |  |  |  | — |  |  |  | — |  |  |  | (20) |
Amounts reclassified to earnings |  |  |  |  | 11 |  |  |  | 173 |  |  |  | — |  |  |  | (4) |  |  |  | (63) |  |  |  | — |  |  |  | 117 |
Net change |  |  |  |  | (22) |  |  |  | 174 |  |  |  | — |  |  |  | 8 |  |  |  | (63) |  |  |  | — |  |  |  | 97 |
Balance at June 30, 2016 |  |  |  | $ | (385) |  |  | $ | (41) |  |  | $ | 3 |  |  | $ | (146) |  |  | $ | (165) |  |  | $ | — |  |  | $ | (734) |
Details about AOCI Components |  | Amount Reclassified from AOCI to Income |  |  | Affected Line Item in the Statements of Consolidated Operations |
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |  |  |  |
|  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |  |  |  |
Pension and other postretirement liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of unrecognized losses and prior service cost (a) |  |  | $ 14 |  |  |  | $ 6 |  |  |  | $ 27 |  |  |  | $ 11 |  |  |  | Salaries and related costs |
Fuel derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reclassifications of losses into earnings |  |  | — |  |  |  | 35 |  |  |  | 2 |  |  |  | 173 |  |  |  | Aircraft fuel |
(a) This AOCI component is included in the computation of net periodic pension and other postretirement costs (see Note 5 of this report for additional information).

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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=84228862&loc=SL7669686-108580 + Details
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