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Reclassifications from Accumulated Other Comprehensive Income - Changes in Accumulated Other Comprehensive Earnings/(Losses) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017
Accumulated other comprehensive income attributable to Mondelēz International: |  |  |  |  |  |
Balance at beginning of period |  |  |  | $ 26,191 | $ 25,215 | $ 25,215
Total other comprehensive earnings/(losses) |  | $ (680) | $ 359 | (525) | 921 | 1,152
Less: (earnings)/loss attributable to noncontrolling interests |  | 12 | (12) | (3) | (16) |
Tax expense/(benefit) on reclassifications |  | (14) | (84) | (321) | (238) |
Losses/(gains) reclassified into net earnings |  | (3,572) | (3,672) | (7,488) | (7,568) |
Other comprehensive earnings/(losses) attributable to Mondelēz International |  | (668) | 347 | (528) | 905 |
Balance at end of period |  | 25,287 |  | 25,287 |  | 26,191
Currency Translation Adjustments |  |  |  |  |  |
Accumulated other comprehensive income attributable to Mondelēz International: |  |  |  |  |  |
Balance at beginning of period |  | (7,549) | (8,375) | (7,741) | (8,914) | (8,914)
Currency translation adjustments |  | (718) | 252 | (558) | 764 |
Tax (expense)/benefit |  | (156) | 128 | (109) | 159 |
Total other comprehensive earnings/(losses) |  | (874) | 380 | (667) | 923 |
Less: (earnings)/loss attributable to noncontrolling interests |  | 12 | (12) | (3) | (16) |
Balance at end of period |  | (8,411) | (8,007) | (8,411) | (8,007) | (7,741)
Pension and Other Benefits |  |  |  |  |  |
Accumulated other comprehensive income attributable to Mondelēz International: |  |  |  |  |  |
Balance at beginning of period |  | (2,150) | (2,086) | (2,144) | (2,087) | (2,087)
Total other comprehensive earnings/(losses) |  | 168 | (33) | 162 | (32) |
Net actuarial gain/(loss) arising during period |  | 38 | 16 | 45 | 9 |
Tax (expense)/benefit on net actuarial gain/(loss) |  | (9) | (2) | (9) | 0 |
Currency impact, pension and other benefit plans |  | 99 | (92) | 45 | (121) |
Balance at end of period |  | (1,982) | (2,119) | (1,982) | (2,119) | (2,144)
Derivative Cash Flow Hedges |  |  |  |  |  |
Accumulated other comprehensive income attributable to Mondelēz International: |  |  |  |  |  |
Balance at beginning of period |  | (159) | (103) | (113) | (121) | (121)
Total other comprehensive earnings/(losses) |  | 26 | 12 | (20) | 30 |
Net derivative gains/(losses) |  | 17 | 22 | (12) | 29 |
Tax (expense)/benefit on net derivative gain/(loss) |  | (4) | (1) | (4) | 4 |
Currency impact derivative cash flow hedges |  | 8 | (5) | 5 | (6) |
Balance at end of period |  | (133) | (91) | (133) | (91) | (113)
Accumulated Other Comprehensive Income (Loss) |  |  |  |  |  |
Accumulated other comprehensive income attributable to Mondelēz International: |  |  |  |  |  |
Balance at beginning of period |  | (9,858) | (10,564) | (9,998) | (11,122) | (11,122)
Total other comprehensive earnings/(losses) |  |  |  | (528) |  | 1,124
Balance at end of period |  | (10,526) | (10,217) | (10,526) | (10,217) | $ (9,998)
Reclassification out of Accumulated Other Comprehensive Income | Pension and Other Benefits |  |  |  |  |  |
Accumulated other comprehensive income attributable to Mondelēz International: |  |  |  |  |  |
Amortization of experience losses and prior service costs | [1] | 44 | 42 | 91 | 83 |
Settlement losses and other expenses | [1] | 8 | 15 | 15 | 18 |
Tax expense/(benefit) on reclassifications | [2] | (12) | (12) | (25) | (21) |
Reclassification out of Accumulated Other Comprehensive Income | Derivative Cash Flow Hedges | Currency exchange contracts |  |  |  |  |  |
Accumulated other comprehensive income attributable to Mondelēz International: |  |  |  |  |  |
Losses/(gains) reclassified into net earnings | [3] | 7 | 0 | (11) | 0 |
Reclassification out of Accumulated Other Comprehensive Income | Derivative Cash Flow Hedges | Currency exchange contracts | Forecasted transactions |  |  |  |  |  |
Accumulated other comprehensive income attributable to Mondelēz International: |  |  |  |  |  |
Losses/(gains) reclassified into net earnings | [4] | 0 | (1) | 0 | 0 |
Reclassification out of Accumulated Other Comprehensive Income | Derivative Cash Flow Hedges | Commodity contracts |  |  |  |  |  |
Accumulated other comprehensive income attributable to Mondelēz International: |  |  |  |  |  |
Losses/(gains) reclassified into net earnings | [4] | 0 | (2) | 0 | 6 |
Reclassification out of Accumulated Other Comprehensive Income | Derivative Cash Flow Hedges | Interest rate contracts |  |  |  |  |  |
Accumulated other comprehensive income attributable to Mondelēz International: |  |  |  |  |  |
Tax expense/(benefit) on reclassifications | [2] | $ (2) | $ (1) | $ 2 | $ (3) |
[1] | These reclassified losses are included in the components of net periodic benefit costs disclosed in Note 10, Benefit Plans.
[2] | Taxes reclassified to earnings are recorded within the provision for income taxes.
[3] | These reclassified gains or losses are recorded within interest and other expense, net.
[4] | These reclassified gains or losses are recorded within cost of sales.

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- Definition Total costs related to goods produced and sold during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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