APercent of eligibility adjustment for equity instruments other than options in a share-based compensation arrangement.

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The period for the granted share-based compensation arrangement.

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The percentage of payout for vesting rights of the share-based compensation arrangement.

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Maximum vesting rights ratio in relation to value of grantees award for a share-based compensation arrangement.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Aggregate number of common shares reserved for future issuance.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Amount of cost to be recognized for option under share-based payment arrangement.

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Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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Amount of tax benefit from exercise of option under share-based payment arrangement.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Number of shares authorized for issuance under share-based payment arrangement.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Net number of share options (or share units) granted during the period.

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Price of a single share of a number of saleable stocks of a company.

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Intrinsic value of vested award under share-based payment arrangement. Excludes share and unit options.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Note 12 - Share-based Payments (Details Textual) $ / shares in Units, shares in Thousands, $ in Thousands			12 Months Ended
	May 27, 2022	Apr. 15, 2019 $ / shares shares	May 29, 2022 USD ($) $ / shares shares	May 30, 2021 USD ($) $ / shares shares	May 31, 2020 USD ($) $ / shares shares	Sep. 19, 2014 shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures, Total (in shares) \| shares			0	0	0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value			$ 2,000	$ 7,000	$ 3,800
Share Price (in dollars per share) \| $ / shares			$ 33.15
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount			$ 0
Proceeds from Stock Options Exercised			7,800	20,500	11,000
Share-Based Payment Arrangement, Exercise of Option, Tax Benefit			500	1,700	1,400
Performance Shares [Member]
Share-Based Payment Arrangement, Expense			1,400	34,900	31,800
Share-Based Payment Arrangement, Expense, Tax Benefit			$ 700	3,600	2,900
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) \| shares			530
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) \| $ / shares			$ 34.13
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested			$ 27,000	33,900	8,400
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount			$ 10,800
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)			1 year 8 months 12 days
Performance Shares [Member] \| Fiscal 2023 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)			3 years
Share Based Compensation Arrangement, By Share Based Payment Award, Granted Period (Year)			2 years
Performance Shares [Member] \| Fiscal 2023 [Member] \| Minimum [Member]
Share Based Compensation Arrangement, By Share Based Payment Award, Vesting Rights Payout, Percentage			0
Performance Shares [Member] \| Fiscal 2023 [Member] \| Maximum [Member]
Share Based Compensation Arrangement, By Share Based Payment Award, Vesting Rights Payout, Percentage			200
Performance Shares [Member] \| Fiscal 2022 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)			3 years
Performance Shares [Member] \| Fiscal 2024 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)			3 years
Performance Based Restricted Stock Units [Member]
Share-Based Payment Arrangement, Expense			$ 1,700	2,400	2,700
Share-Based Payment Arrangement, Expense, Tax Benefit			$ (400)	200	200
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) \| shares		200
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) \| $ / shares		$ 41.82
Share Based Compensation Arrangement, By Share Based Payment Award, Vesting Rights Payout, Percentage	0
Share based Compensation Arrangement by Share based Payment Award, Equity Instruments Other than Options, Eligibility Adjustment		25
Share based Compensation Arrangement by Share based Payment Award, Vesting Rights Ratio in Relation to Value of Grantees Award, Maximum		8.6
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate		2.35%
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate		24.92%
Performance Based Restricted Stock Units [Member] \| Minimum [Member]
Share Based Compensation Arrangement, By Share Based Payment Award, Vesting Rights Payout, Percentage		0
Performance Based Restricted Stock Units [Member] \| Maximum [Member]
Share Based Compensation Arrangement, By Share Based Payment Award, Vesting Rights Payout, Percentage		500
Share-Based Payment Arrangement, Option [Member]
Share-Based Payment Arrangement, Expense					200
Share-Based Payment Arrangement, Expense, Tax Benefit					100
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)			3 years
Share-Based Payment Arrangement, Option [Member] \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)			7 years
Share-Based Payment Arrangement, Option [Member] \| Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)			10 years
Conagra Foods Stock Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) \| shares						40,300
Common Stock, Capital Shares Reserved for Future Issuance (in shares) \| shares			38,500
Share Unit Awards [Member] \| Cash Settled Restricted Stock Units [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period (Year)			3 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested				4,300	24,300
Share Unit Awards [Member] \| Stock Settled Share Unit Awards [Member]
Share-Based Payment Arrangement, Expense			$ 25,800	28,100	24,500
Share-Based Payment Arrangement, Expense, Tax Benefit			$ 5,300	$ 6,100	$ 5,300
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) \| shares			1,090	900	1,300
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) \| $ / shares			$ 34.26	$ 36.72	$ 28.32
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested			$ 26,900	$ 24,600	$ 14,200
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount			$ 26,500
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)			1 year 9 months 18 days
Share Unit Awards [Member] \| Cash Settled Share Unit Awards [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) \| shares			0	0	0