No definition available.

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Namespace Prefix:	gis_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Accumulated gain (loss) on foreign currency forward exchange contracts. Includes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. Includes the gain or loss on a derivative instrument or nonderivative financial instrument that may give rise to a foreign currency transaction gain or loss under FAS 52 and that have been designated and have qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation.

+ References

No definition available.

Financial Instruments, Risk Management Activities, and Fair Values (Narrative) (Details) € in Millions	3 Months Ended				12 Months Ended
	May 25, 2025 EUR (€)	Feb. 23, 2025	Nov. 24, 2024 USD ($)	Feb. 25, 2024 USD ($)	May 25, 2025 USD ($)	May 26, 2024 USD ($)	May 28, 2023 USD ($)	May 25, 2025 EUR (€)
Derivative [Line Items]
Long-term debt, fair value					$ 13,579,500,000	$ 12,148,700,000
Long-term debt, carrying value					14,201,600,000	12,918,300,000
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss)					(11,800,000)
Issuance of long-term debt					2,354,900,000	2,065,200,000	$ 2,324,400,000
Hedged Liability Fair Value Hedge Cumulative Increase Decrease					3,200,000	34,200,000
Cost of sales					(12,753,600,000)	(12,925,100,000)	(13,548,400,000)
Selling, general, and administrative expenses					(3,445,800,000)	(3,259,000,000.0)	$ (3,500,400,000)
Amounts Recorded in Accumulated Other Comprehensive Loss [Abstract]
Net Pre-tax Gains (Losses) in AOCI Expected to be Reclassified into Net Earnings within the Next 12 Months					(2,100,000)
Financial Instruments Owned At Fair Value [Abstract]
Net realized losses from sales of marketable securities					0	(7,600,000)
Credit Risk Related Contingent Features [Abstract]
Aggregate fair value of derivative instruments in liability position					24,800,000
Aggregate fair value of collateral already posted					24,800,000
Counterparty Credit Risk [Abstract]
Concentration Risk Credit Risk Financial Instrument Maximum Exposure					6,300,000
Asset Pledged as Collateral [Member]
Financial Instruments Owned At Fair Value [Abstract]
Financial Instruments Owned At Fair Value					2,300,000
Counterparty Credit Risk [Abstract]
Securities Held as Collateral at Fair Value Derivative Arrangements					0
Reclassification Out Of Accumulated Other Comprehensive Income [Member]
Derivative [Line Items]
Cost of sales					12,700,000	7,000,000.0
Selling, general, and administrative expenses					$ (10,200,000)	(3,800,000)
Swap [Member]
Derivative [Line Items]
Derivative, Maturity Date					May 31, 2026
Fixed-rate notes due April 17, 2032 [Member]
Derivative [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					3.60%			3.60%
Debt Instrument, Maturity Date	Apr. 17, 2032
Issuance of long-term debt \| €	€ 750.0
Fixed-rate notes due April 17, 2032 [Member] \| Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount \| €								€ 750.0
Fixed-rate notes due January 30, 2035 [Member]
Derivative [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			5.25%
Debt Instrument, Maturity Date			Jan. 30, 2035
Issuance of long-term debt			$ 750,000,000.0
Fixed-rate notes due January 30, 2030 [Member]
Derivative [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			4.875%
Debt Instrument, Maturity Date			Jan. 30, 2030
Issuance of long-term debt			$ 750,000,000.0
Fixed-rate notes due January 30, 2030 [Member] \| Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount			$ 750,000,000.0
Fixed-rate notes due November 18, 2025 [Member]
Derivative [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.241%
Debt Instrument, Maturity Date		Nov. 18, 2025	Nov. 18, 2025
Issuance of long-term debt			$ 500,000,000.0
Fixed-rate notes due November 18, 2025 [Member] \| Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount			500,000,000.0
Euro Denominated Bonds Used For Hedging [Member]
Derivative [Line Items]
Long-term debt, carrying value \| €								€ 4,742.8
Foreign Exchange Risk [Abstract]
Deferred Net Foreign Currency Transaction Gains (Losses) After tax Accumulated Other Comprehensive Income					$ 123,500,000
6-year fixed-rate note [Member]
Derivative [Line Items]
Derivative, Maturity Date					Apr. 17, 2028
Debt Instrument, Interest Rate, Stated Percentage					4.20%			4.20%
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss)					$ (3,000,000.0)
4.7% Fixed-rate notes due January 30, 2027 [Member]
Derivative [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				4.70%
Debt Instrument, Maturity Date				Jan. 30, 2027
Issuance of long-term debt				$ 500,000,000.0
Commodity Contracts [Member]
Derivative [Line Items]
Derivative, Notional Amount					$ 227,100,000
Commodity Price Risk [Abstract]
Derivative Contacts Inputs, Average Period of Utilization					P12M
Agricultural Related Derivative [Member]
Derivative [Line Items]
Derivative, Notional Amount					$ 134,600,000
Energy Related Derivative [Member]
Derivative [Line Items]
Derivative, Notional Amount					92,500,000
Treasury Lock [Member]
Derivative [Line Items]
Pre-tax amount of cash-settled interest rate hedge gain (loss)			350,000,000.0	250,000,000.0
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss)			$ 100,000	$ 300,000
Foreign Exchange Contracts [Member]
Derivative [Line Items]
Derivative, Notional Amount					831,300,000
Equity Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount					202,700,000
Hedged Debt Designated as Hedged Item [Member]
Derivative [Line Items]
Long-term debt, carrying value					2,280,600,000
Forward-starting swap agreements [Member]
Credit Risk Related Contingent Features [Abstract]
Amounts reported as a result of being excluded from the assessment of hedge effectiveness					$ 0	$ 0