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Statement of Consolidated Comprehensive Income (Loss) (unaudited) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Net income | $ 178 | $ 207 | $ 189 | $ 462
Other comprehensive (loss) income, net of tax (C): |  |  |  |
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits | 67 | (1) | 100 | 106
Foreign currency translation adjustments | 77 | 229 | 487 | (978)
Net change in unrealized losses/gains on available-for-sale securities | 3 | (2) | 4 |
Net change in unrecognized gains/losses on cash flow hedges | (137) | 430 | (219) | 366
Total Other comprehensive (loss) income, net of tax | 10 | 656 | 372 | (506)
Comprehensive income | 188 | 863 | 561 | (44)
Alcoa [Member] |  |  |  |
Net income | 135 | 140 | 151 | 335
Other comprehensive (loss) income, net of tax (C): |  |  |  |
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits | 65 | (4) | 97 | 101
Foreign currency translation adjustments | 45 | 197 | 348 | (760)
Net change in unrealized losses/gains on available-for-sale securities | 3 | (2) | 4 |
Net change in unrecognized gains/losses on cash flow hedges | (153) | 434 | (233) | 370
Total Other comprehensive (loss) income, net of tax | (40) | 625 | 216 | (289)
Comprehensive income | 95 | 765 | 367 | 46
Noncontrolling Interests [Member] |  |  |  |
Net income | 43 | 67 | 38 | 127
Other comprehensive (loss) income, net of tax (C): |  |  |  |
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits | 2 | 3 | 3 | 5
Foreign currency translation adjustments | 32 | 32 | 139 | (218)
Net change in unrecognized gains/losses on cash flow hedges | 16 | (4) | 14 | (4)
Total Other comprehensive (loss) income, net of tax | 50 | 31 | 156 | (217)
Comprehensive income | $ 93 | $ 98 | $ 194 | $ (90)

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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=51831270 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Comprehensive Income -URI http://asc.fasb.org/extlink&oid=51831223 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e557-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=51831255 + Details
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- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -Subparagraph (b,c) -URI http://asc.fasb.org/extlink&oid=64808268&loc=d3e32211-110900 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669646-108580 + Details
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