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Note 9 - Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2021
Notes Tables |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
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 | )

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