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Accumulated Other Comprehensive Loss | 3 Months Ended
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Mar. 31, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Accumulated Other Comprehensive Income (Loss) Note [Text Block] | Accumulated Other Comprehensive Loss A summary of the changes in each component of Accumulated other comprehensive loss, net of tax for the quarters ended March 31, 2021 and 2020 is provided below:
(dollars in millions) | Foreign Currency Translation |  | Defined Benefit Pension and Post-retirement Plans |  | Unrealized Hedging (Losses) Gains |  | Accumulated Other Comprehensive Income (Loss)
Balance at December 31, 2020 | $ | 710 |  |  | $ | (4,483) |  |  | $ | 39 |  |  | $ | (3,734) |
Other comprehensive income (loss) before reclassifications, net | (176) |  |  | (10) |  |  | (46) |  |  | (232) |
Amounts reclassified, pre-tax | — |  |  | 64 |  |  | (14) |  |  | 50 |
Tax benefit (expense) | (5) |  |  | (12) |  |  | 12 |  |  | (5) |
Balance at March 31, 2021 | $ | 529 |  |  | $ | (4,441) |  |  | $ | (9) |  |  | $ | (3,921) |
(dollars in millions) | Foreign Currency Translation |  | Defined Benefit Pension and Post-retirement Plans |  | Unrealized Hedging (Losses) Gains |  | Accumulated Other Comprehensive Income (Loss)
Balance at December 31, 2019 | $ | (3,211) |  |  | $ | (6,772) |  |  | $ | (166) |  |  | $ | (10,149) |
Other comprehensive income (loss) before reclassifications, net | (1,445) |  |  | 8 |  |  | (403) |  |  | (1,840) |
Amounts reclassified, pre-tax | — |  |  | 102 |  |  | 29 |  |  | 131 |
Tax expense (benefit) | 9 |  |  | (31) |  |  | 92 |  |  | 70 |
Balance at March 31, 2020 | $ | (4,647) |  |  | $ | (6,693) |  |  | $ | (448) |  |  | $ | (11,788) |

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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