Note 10 - Hedging Activities (Details Textual) $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2023 USD ($) ozt	Dec. 31, 2022 USD ($) GT
Derivative, Notional Amount	$ 10,059	$ 10,193
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	29
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax	44	19
New Investment Hedges [Member] \| Cash Flow Hedging [Member]
Derivative, Notional Amount	365	419
Leased Precious Metal Pools [Member]
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	(188)	(95)
Leased Precious Metal Pools [Member] \| Property and Equipment, Net [Member]
Derivative Instruments in Hedges, Assets, at Fair Value	185	278
Foreign Exchange Forward [Member] \| Cash Flow Hedging [Member] \| Designated as Hedging Instrument [Member]
Derivative, Notional Amount	$ 365	$ 419
Derivative, Nonmonetary Notional Amount, Mass (Troy Ounce)	23,152	23,152

Amount, after tax, of accumulated gain (loss) on derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482790/220-10-45-11

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 815
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