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Note 13 - Shareholders' Equity (Details Textual) - USD ($) shares in Millions, $ in Millions |  |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 23, 2023 | Apr. 08, 2022 | Apr. 08, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Apr. 05, 2022 | Apr. 05, 2021 | Jan. 16, 2021 | Jul. 17, 2019 | Apr. 26, 2018
Payments for Repurchase of Common Stock |  |  |  |  |  | $ 221 | $ 22 |  |  |  |  |
Accumulated Foreign Currency Adjustment Attributable to Parent [Member] |  |  |  |  |  |  |  |  |  |  |  |
Other Comprehensive Income (Loss), Tax, Total |  |  |  | $ 49 | $ 31 | 87 | 42 |  |  |  |  |
Share Repurchase Agreement [Member] | Samsung [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock Repurchased and Retired During Period, Shares (in shares) |  |  | 35.0 |  |  |  |  |  |  |  |  |
Payments for Repurchase of Common Stock |  | $ 507 | $ 507 |  |  |  |  | $ 1,500 |  |  |  |
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased (in shares) |  |  | 22.0 |  |  |  |  |  |  |  |  |
Number of Shares Held by Counter Party subject to Seven Year Lock-up Period (in shares) |  |  | 58.0 |  |  |  |  |  |  |  |  |
Share Repurchase Agreement [Member] | Samsung [Member] | Forecast [Member] |  |  |  |  |  |  |  |  |  |  |  |
Payments for Repurchase of Common Stock | $ 507 |  |  |  |  |  |  |  |  |  |  |
The 2018 Repurchase Program [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  |  |  |  |  |  |  | $ 2,000
The 2019 Repurchase Program [Member] |  |  |  |  |  |  |  |  |  |  |  |
Payments for Repurchase of Common Stock |  |  |  | $ 17 |  | $ 221 |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  |  |  |  |  |  | $ 5,000 |
Treasury Stock, Shares, Acquired (in shares) |  |  |  | 0.5 |  | 6.0 |  |  |  |  |  |
The 2018 and 2019 Repurchase Programs [Member] |  |  |  |  |  |  |  |  |  |  |  |
Payments for Repurchase of Common Stock |  |  |  |  | $ 24 |  | $ 1,500 |  |  |  |  |
Treasury Stock, Shares, Acquired (in shares) |  |  |  |  | 1.0 |  | 36.0 |  |  |  |  |
Series A Convertible Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Convertible, Shares Issuable (in shares) |  |  |  |  |  |  |  |  |  | 115.0 |  |
Converted from Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Shares, Outstanding, Ending Balance (in shares) |  |  | 80.0 |  |  |  |  |  | 80.0 |  |  |

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