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Note 14: Other Comprehensive Income (Loss) 
 
The changes in accumulated other comprehensive income (loss) by component and related tax effects in the first six months of 2017 were as follows:
 
|  |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
| (In Millions) |   | Unrealized Holding Gains (Losses) on Available-for-Sale Investments |   | Unrealized Holding Gains (Losses) on Derivatives |   | Prior Service Credits (Costs) |   | Actuarial Gains (Losses) |   | Foreign Currency Translation Adjustment |   | Total |  
| December 31, 2016 |   | $ | 2,164 | 
 |   | $ | (259 | ) |   | $ | (40 | ) |   | $ | (1,240 | ) |   | $ | (519 | ) |   | $ | 106 | 
 |  
| 
Other comprehensive income (loss) before reclassifications1
 |   | 1,059 | 
 |   | 445 | 
 |   | — | 
 |   | 217 | 
 |   | 1 | 
 |   | 1,722 | 
 |  
| Amounts reclassified out of accumulated other comprehensive income |   | (1,046 | ) |   | 16 | 
 |   | (12 | ) |   | 40 | 
 |   | 507 | 
 |   | (495 | ) |  
| Tax effects |   | (4 | ) |   | (130 | ) |   | 2 | 
 |   | (27 | ) |   | — | 
 |   | (159 | ) |  
| Other comprehensive income (loss) |   | 9 | 
 |   | 331 | 
 |   | (10 | ) |   | 230 | 
 |   | 508 | 
 |   | 1,068 | 
 |  
| July 1, 2017 |   | $ | 2,173 | 
 |   | $ | 72 | 
 |   | $ | (50 | ) |   | $ | (1,010 | ) |   | $ | (11 | ) |   | $ | 1,174 | 
 | 
 
|  |  |  
| 1  | In the second quarter of 2017, we froze future benefit accruals for our Ireland pension plan.  |  
 
 
The amounts reclassified out of accumulated other comprehensive income (loss) into the consolidated condensed statements of income for each period were as follows:
|  |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|   |   | Income Before Taxes Impact (In Millions)
 |   |   |  
|   |   | Three Months Ended |   | Six Months Ended |   |   |  
| Comprehensive Income Components |   | Jul 1, 2017
 |   | Jul 2, 2016
 |   | Jul 1, 2017
 |   | Jul 2, 2016
 |   | Location |  
| 
Unrealized holding gains (losses)1 on available-for-sale investments:
 |   |   |   |   |   |   |   |   |   |   |  
|   |   | $ | 783 | 
 |   | $ | 403 | 
 |   | $ | 1,046 | 
 |   | $ | 488 | 
 |   | Gains (losses) on equity investments, net |  
|   |   | 783 | 
 |   | 403 | 
 |   | 1,046 | 
 |   | 488 | 
 |   |   |  
| Unrealized holding gains (losses) on derivatives: |   |   |   |   |   |   |   |   |   |   |  
| Foreign currency contracts |   | (27 | ) |   | (17 | ) |   | (47 | ) |   | (59 | ) |   | Cost of sales |  
|   |   | 2 | 
 |   | 7 | 
 |   | (14 | ) |   | (3 | ) |   | Research and development |  
|   |   | (1 | ) |   | 3 | 
 |   | (6 | ) |   | (1 | ) |   | Marketing, general and administrative |  
|   |   | 12 | 
 |   | 11 | 
 |   | 16 | 
 |   | 11 | 
 |   | Gains (losses) on equity investments, net |  
|   |   | (3 | ) |   | (17 | ) |   | 35 | 
 |   | 17 | 
 |   | Interest and other, net |  
|   |   | (17 | ) |   | (13 | ) |   | (16 | ) |   | (35 | ) |   |   |  
| Amortization of pension and postretirement benefit components: |   |   |   |   |   |   |   |   |   |   |  
| Prior service credits (costs) |   | 14 | 
 |   | (2 | ) |   | 12 | 
 |   | (4 | ) |   |   |  
| Actuarial gains (losses) |   | (18 | ) |   | (14 | ) |   | (40 | ) |   | (26 | ) |   |   |  
|   |   | (4 | ) |   | (16 | ) |   | (28 | ) |   | (30 | ) |   |   |  
| Currency translation adjustment |   | (507 | ) |   | — | 
 |   | (507 | ) |   | — | 
 |   | Interest and other, net |  
| Total amounts reclassified out of accumulated other comprehensive income (loss) |   | $ | 255 | 
 |   | $ | 374 | 
 |   | $ | 495 | 
 |   | $ | 423 | 
 |   |   | 
 
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| 1  | We determine the cost of the investment sold based on an average cost basis at the individual security level. |  The amortization of pension and postretirement benefit components are included in the computation of net periodic benefit cost. For further information, see "Note 18: Retirement Benefit Plans" in Part II, Item 8 of our 2016 Form 10-K. 
We estimate that we will reclassify approximately $76 million (before taxes) of net derivative gains included in accumulated other comprehensive income (loss) into earnings within the next 12 months. 
 
During the second quarter of 2017, we reclassified approximately $507 million (before taxes) of currency translation adjustment losses included in accumulated other comprehensive income (loss) into earnings as a result of our divestiture of ISecG. For more information see "Note 9: Acquisitions and Divestitures."
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