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Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Statement of Comprehensive Income [Abstract] |  |  |  |
Tax on foreign currency translation | $ (6) | $ 2 | $ (6) | $ 1
Tax on unrealized gains (losses) from securities | 0 | 0 | 0 | 0
Defined benefit plans: |  |  |  |
Tax on amortization of prior service cost and unrecognized gains and losses included in total benefit cost | (7) | (8) | (15) | (17)
Tax on (increase)/decrease in net actuarial losses | (2) | 2 | 3 | 5
Tax on immediate recognition of prior service cost and unrecognized gains and losses due to curtailments, settlements, and divestitures | 5 | 4 | 5 | 4
Tax effect of deferred derivative gains (losses) | 0 | 0 | 0 | 0
Tax effect of reclassification adjustment for amounts recognized in income | $ 0 | $ 0 | $ 0 | $ 0

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- Definition Amount of tax expense (benefit), before 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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=120253306&loc=d3e28129-110885 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32262-110900 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=124509347&loc=d3e640-108580 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=125521441&loc=d3e30755-110894 + Details
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