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Note 9 - Accumulated Other Comprehensive Income (Loss) | 12 Months Ended
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Dec. 31, 2021
Notes to Financial Statements |
Comprehensive Income (Loss) Note [Text Block] | 9. Accumulated Other Comprehensive Income/Loss Reclassifications out of accumulated other comprehensive income/loss were as follows (net of tax):
Millions |  | Defined benefit plans |  |  | Foreign currency translation |  |  | Total |
Balance at January 1, 2021 |  | $ | (1,381 | ) |  | $ | (212 | ) |  | $ | (1,593 | )
Other comprehensive income/(loss) before reclassifications |  |  | - |  |  |  | (44 | ) |  |  | (44 | )
Amounts reclassified from accumulated other comprehensive income/(loss) [a] |  |  | 723 |  |  |  | - |  |  |  | 723 |
Net year-to-date other comprehensive income/(loss), net of taxes of ($237) million |  |  | 723 |  |  |  | (44 | ) |  |  | 679 |
Balance at December 31, 2021 |  | $ | (658 | ) |  | $ | (256 | ) |  | $ | (914 | )
Balance at January 1, 2020 |  | $ | (1,150 | ) |  | $ | (206 | ) |  | $ | (1,356 | )
Other comprehensive income/(loss) before reclassifications |  |  | 2 |  |  |  | (6 | ) |  |  | (4 | )
Amounts reclassified from accumulated other comprehensive income/(loss) [a] |  |  | (233 | ) |  |  | - |  |  |  | (233 | )
Net year-to-date other comprehensive income/(loss), net of taxes of $75 million |  |  | (231 | ) |  |  | (6 | ) |  |  | (237 | )
Balance at December 31, 2020 |  | $ | (1,381 | ) |  | $ | (212 | ) |  | $ | (1,593 | )
[a] | The accumulated other comprehensive income/loss reclassification components are 1) prior service cost/credit and 2) net actuarial loss which are both included in the computation of net periodic pension cost. See Note 5 for additional details.

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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=123367319&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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