Note 9 - Accumulated Other Comprehensive Income/Loss - Schedule of Reclassification (Details) - USD ($) $ in Millions |
12 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
||||||||||
| Balance | $ 12,163 | $ 14,161 | $ 16,958 | |||||||||
| Other comprehensive income/(loss) | [1] | (32) | 332 | 679 | ||||||||
| Balance | 14,788 | 12,163 | 14,161 | |||||||||
| Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | ||||||||||||
| Balance | (378) | (658) | ||||||||||
| Other comprehensive income/(loss) before reclassifications | 5 | 0 | ||||||||||
| Amounts reclassified from accumulated other comprehensive income/(loss) [b] | [2] | (111) | 280 | |||||||||
| Other comprehensive income/(loss) | (106) | 280 | ||||||||||
| Balance | (484) | (378) | (658) | |||||||||
| Accumulated Foreign Currency Adjustment Attributable to Parent [Member] | ||||||||||||
| Balance | (204) | (256) | ||||||||||
| Other comprehensive income/(loss) before reclassifications | 58 | 52 | ||||||||||
| Amounts reclassified from accumulated other comprehensive income/(loss) [b] | [2] | 0 | 0 | |||||||||
| Other comprehensive income/(loss) | 58 | 52 | ||||||||||
| Balance | (146) | (204) | (256) | |||||||||
| Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] | ||||||||||||
| Balance | [3] | 0 | 0 | |||||||||
| Other comprehensive income/(loss) before reclassifications | [3] | 16 | 0 | |||||||||
| Amounts reclassified from accumulated other comprehensive income/(loss) [b] | [2] | 0 | 0 | [3] | ||||||||
| Other comprehensive income/(loss) | 16 | 0 | ||||||||||
| Balance | [3] | 16 | 0 | 0 | ||||||||
| AOCI Attributable to Parent [Member] | ||||||||||||
| Balance | [4] | (582) | (914) | (1,593) | ||||||||
| Other comprehensive income/(loss) before reclassifications | 79 | 52 | ||||||||||
| Amounts reclassified from accumulated other comprehensive income/(loss) [b] | [2] | (111) | 280 | |||||||||
| Other comprehensive income/(loss) | [4] | (32) | 332 | 679 | ||||||||
| Balance | [4] | $ (614) | $ (582) | $ (914) | ||||||||
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