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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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