General Mills (GIS) 10-K 29 Jun 17 2017 FY Annual report Financial data

DOCUMENT AND ENTITY INFORMATION

DOCUMENT AND ENTITY INFORMATION - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	Jun. 09, 2017	Nov. 28, 2016
Document and Entity Information [Abstract]
Document Type	10-K
Document Period End Date	May 28, 2017
Amendment Flag	false
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--05-28
Entity Central Index Key	40,704
Trading Symbol	GIS
Entity Registrant Name	GENERAL MILLS INC
Entity Filer Category	Large Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well Known Seasoned Issuer	Yes
Entity Common Stock, Shares Outstanding		577,099,679
Entity Public Float			$ 36,148.9

CONSOLIDATED STATEMENTS OF EARN

CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Consolidated Statements of Earnings [Abstract]
Net sales	$ 15,619.8	$ 16,563.1	$ 17,630.3
Cost of sales	10,056	10,733.6	11,681.1
Selling, general, and administrative expenses	2,801.3	3,118.9	3,328
Divestitures loss (gain)	13.5	(148.2)	0
Restructuring, impairment, and other exit costs	182.6	151.4	543.9
Operating profit	2,566.4	2,707.4	2,077.3
Interest, net	295.1	303.8	315.4
Earnings before income taxes and after-tax earnings from joint ventures	2,271.3	2,403.6	1,761.9
Income taxes	655.2	755.2	586.8
After-tax earnings from joint ventures	85	88.4	84.3
Net earnings, including earnings attributable to redeemable and noncontrolling interests	1,701.1	1,736.8	1,259.4
Net earnings attributable to redeemable and noncontrolling interests	43.6	39.4	38.1
Net earnings attributable to General Mills	$ 1,657.5	$ 1,697.4	$ 1,221.3
Earnings per share - basic	$ 2.82	$ 2.83	$ 2.02
Earnings per share - diluted	2.77	2.77	1.97
Dividends per share	$ 1.92	$ 1.78	$ 1.67

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Consolidated Statements of Comprehensive Income [Abstract]
Net earnings, including earnings attributable to redeemable and noncontrolling interests	$ 1,701.1	$ 1,736.8	$ 1,259.4
Other comprehensive income (loss), net of tax:
Foreign currency translation	6.3	(108.7)	(957.9)
Net actuarial income (loss)	197.9	(325.9)	(358.4)
Other fair value changes:
Securities	0.8	0.1	0.8
Hedge derivatives	53.3	16	4.1
Reclassification to earnings:
Hedge derivatives	(25.7)	(9.5)	4.9
Amortization of losses and prior service costs	122.5	128.6	105.1
Other comprehensive income (loss), net of tax	355.1	(299.4)	(1,201.4)
Total comprehensive income	2,056.2	1,437.4	58
Comprehensive income (loss) attributable to redeemable and noncontrolling interests	31	41.5	(192.9)
Comprehensive income attributable to General Mills	$ 2,025.2	$ 1,395.9	$ 250.9

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	May 28, 2017	May 29, 2016
Current assets:
Cash and cash equivalents	$ 766.1	$ 763.7
Receivables	1,430.1	1,360.8
Inventories	1,483.6	1,413.7
Prepaid expenses and other current assets	381.6	399
Total current assets	4,061.4	3,937.2
Land, buildings, and equipment	3,687.7	3,743.6
Goodwill	8,747.2	8,741.2
Other intangible assets	4,530.4	4,538.6
Other assets	785.9	751.7
Total assets	21,812.6	21,712.3
Current liabilities:
Accounts payable	2,119.8	2,046.5
Current portion of long-term debt	604.7	1,103.4
Notes payable	1,234.1	269.8
Other current liabilities	1,372.2	1,595
Total current liabilities	5,330.8	5,014.7
Long-term debt	7,642.9	7,057.7
Deferred income taxes	1,719.4	1,399.6
Other liabilities	1,523.1	2,087.6
Total liabilities	16,216.2	15,559.6
Redeemable interest	910.9	845.6
Stockholders' equity:
Common stock, 754.6 shares issued, $0.10 par value	75.5	75.5
Additional paid-in capital	1,120.9	1,177
Retained earnings	13,138.9	12,616.5
Common stock in treasury, at cost	(7,762.9)	(6,326.6)
Accumulated other comprehensive loss	(2,244.5)	(2,612.2)
Total stockholders' equity	4,327.9	4,930.2
Noncontrolling interests	357.6	376.9
Total equity	4,685.5	5,307.1
Total liabilities and equity	$ 21,812.6	$ 21,712.3

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Paranthetical) - $ / shares shares in Millions	May 28, 2017	May 29, 2016	May 31, 2015
Stockholders' equity:
Common stock, shares issued	754.6	754.6
Common stock, par value	$ 0.1	$ 0.1	$ 0.1
Common stock in treasury, shares	177.7	157.8

CONSOLIDATED STATEMENTS OF TOTA

CONSOLIDATED STATEMENTS OF TOTAL EQUITY AND REDEEMABLE INTEREST - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interests [Member]	Redeemable Interest [Member]
Beginning Balance, Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at May. 25, 2014	$ 7,005.4	$ 75.5	$ 1,231.8	$ (5,219.4)	$ 11,787.2	$ (1,340.3)	$ 470.6
Beginning Balance, Common Stock, Shares, Issued at May. 25, 2014		754.6
Beginning Balance, Treasury Stock, Shares at May. 25, 2014				(142.3)
Beginning Balance, Redeemable Noncontrolling Interest, Equity, Other, Fair Value at May. 25, 2014								$ 984.1
Total comprehensive income (loss)	180.9				1,221.3	(970.4)	(70)
Total comprehensive income (loss) attributable to redeemable interests								(122.9)
Cash dividends declared	(1,017.7)				(1,017.7)
Shares purchased, value	$ (1,161.9)			$ (1,161.9)
Shares purchased, shares	(22.3)			(22.3)
Stock compensation plans, value (includes income tax benefits)	$ 287.6		(38.1)	$ 325.7
Stock compensation plans, shares (includes income tax benefits)				8.7
Unearned compensation related to stock unit awards	(80.8)		(80.8)
Earned compensation	111.1		111.1
(Increase) decrease in redemption value of redeemable interest	83.2		83.2					(83.2)
Addition of redeemable and noncontrolling interest	20.7						20.7
Acquisition of interest in subsidiary	(9.9)		(10.5)				0.6
Distributions to redeemable and noncontrolling interest holders	(25.9)						(25.9)	0.9
Ending Balance, Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at May. 31, 2015	5,392.7	$ 75.5	1,296.7	$ (6,055.6)	11,990.8	(2,310.7)	396
Ending Balance, Common Stock, Shares, Issued at May. 31, 2015		754.6
Ending Balance, Treasury Stock, Shares at May. 31, 2015				(155.9)
Ending Balance, Redeemable Noncontrolling Interest, Equity, Other, Fair Value at May. 31, 2015								778.9
Total comprehensive income (loss)	1,407.1				1,697.4	(301.5)	11.2
Total comprehensive income (loss) attributable to redeemable interests								30.3
Cash dividends declared	(1,071.7)				(1,071.7)
Shares purchased, value	$ (606.7)			$ (606.7)
Shares purchased, shares	(10.7)			(10.7)
Stock compensation plans, value (includes income tax benefits)	$ 289.4		(46.3)	$ 335.7
Stock compensation plans, shares (includes income tax benefits)				8.8
Unearned compensation related to stock unit awards	(63.3)		(63.3)
Earned compensation	84.8		84.8
(Increase) decrease in redemption value of redeemable interest	(91.5)		(91.5)					91.5
Acquisition of interest in subsidiary	(4.5)		(3.4)				(1.1)
Distributions to redeemable and noncontrolling interest holders	(29.2)						(29.2)	(55.1)
Ending Balance, Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at May. 29, 2016	$ 5,307.1	$ 75.5	1,177	$ (6,326.6)	12,616.5	(2,612.2)	376.9
Ending Balance, Common Stock, Shares, Issued at May. 29, 2016	754.6	754.6
Ending Balance, Treasury Stock, Shares at May. 29, 2016	157.8			(157.8)
Ending Balance, Redeemable Noncontrolling Interest, Equity, Other, Fair Value at May. 29, 2016	$ 845.6							845.6
Total comprehensive income (loss)	2,039				1,657.5	367.7	13.8
Total comprehensive income (loss) attributable to redeemable interests								17.2
Cash dividends declared	(1,135.1)				(1,135.1)
Shares purchased, value	$ (1,651.5)			$ (1,651.5)
Shares purchased, shares	(25.4)			(25.4)
Stock compensation plans, value (includes income tax benefits)	$ 218.8		3.6	$ 215.2
Stock compensation plans, shares (includes income tax benefits)				5.5
Unearned compensation related to stock unit awards	(78.5)		(78.5)
Earned compensation	94.9		94.9
(Increase) decrease in redemption value of redeemable interest	(75.9)		(75.9)					75.9
Acquisition of interest in subsidiary	(0.1)		(0.2)				0.1
Distributions to redeemable and noncontrolling interest holders	(33.2)						(33.2)	(27.8)
Ending Balance, Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at May. 28, 2017	$ 4,685.5	$ 75.5	$ 1,120.9	$ (7,762.9)	$ 13,138.9	$ (2,244.5)	$ 357.6
Ending Balance, Common Stock, Shares, Issued at May. 28, 2017	754.6	754.6
Ending Balance, Treasury Stock, Shares at May. 28, 2017	177.7			(177.7)
Ending Balance, Redeemable Noncontrolling Interest, Equity, Other, Fair Value at May. 28, 2017	$ 910.9							$ 910.9

CONSOLIDATED STATEMENTS OF TOT7

CONSOLIDATED STATEMENTS OF TOTAL EQUITY AND REDEEMABLE INTEREST (Parenthetical) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Consolidated Statements of Total Equity and Redeemable Interest [Abstract]
Par Value Common Stock	$ 0.1	$ 0.1	$ 0.1
Shares Authorized	1,000	1,000	1,000
Cash dividends declared per share	$ 1.92	$ 1.78	$ 1.67
Stock compensation plans, income tax benefits	$ 64.1	$ 94.1	$ 74.6

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Cash Flows - Operating Activities
Net earnings, including earnings attributable to redeemable and noncontrolling interests	$ 1,701.1	$ 1,736.8	$ 1,259.4
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	603.6	608.1	588.3
After-tax earnings from joint ventures	(85)	(88.4)	(84.3)
Distributions of earnings from joint ventures	75.6	75.1	72.6
Stock-based compensation	95.7	89.8	106.4
Deferred income taxes	183.9	120.6	25.3
Tax benefit on exercised options	(64.1)	(94.1)	(74.6)
Pension and other postretirement benefit plan contributions	(45.4)	(47.8)	(49.5)
Pension and other postretirement benefit plan costs	35.7	118.1	91.3
Divestitures loss (gain)	13.5	(148.2)	0
Restructuring, impairment, and other exit costs	117	107.2	531.1
Changes in current assets and liabilities, excluding the effects of acquisitions and divestitures	(232)	258.2	214.7
Other, net	(86.3)	(105.6)	(137.9)
Net cash provided by operating activities	2,313.3	2,629.8	2,542.8
Cash Flows - Investing Activities
Purchases of land, buildings, and equipment	(684.4)	(729.3)	(712.4)
Acquisitions, net of cash acquired	0	(84)	(822.3)
Investments in affiliates, net	3.3	63.9	(102.4)
Proceeds from disposal of land, buildings, and equipment	4.2	4.4	11
Proceeds from divestitures	17.5	828.5	0
Exchangeable note	13	21.1	27.9
Other, net	(0.5)	(11.2)	(4)
Net cash provided (used) by investing activities	(646.9)	93.4	(1,602.2)
Cash Flows - Financing Activities
Change in notes payable	962.4	(323.8)	(509.8)
Issuance of long-term debt	1,072.1	542.5	2,253.2
Payment of long-term debt	(1,000)	(1,000.4)	(1,145.8)
Proceeds from common stock issued on exercised options	112.6	171.9	163.7
Tax benefit on exercised options	64.1	94.1	74.6
Purchases of common stock for treasury	(1,651.5)	(606.7)	(1,161.9)
Dividends paid	(1,135.1)	(1,071.7)	(1,017.7)
Distributions to noncontrolling and redeemable interest holders	(61)	(84.3)	(25)
Other, net	(9.1)	(7.2)	(16.1)
Net cash used by financing activities	(1,645.5)	(2,285.6)	(1,384.8)
Effect of exchange rate changes on cash and cash equivalents	(18.5)	(8.1)	(88.9)
Increase (decrease) in cash and cash equivalents	2.4	429.5	(533.1)
Cash and cash equivalents - beginning of year	763.7	334.2	867.3
Cash and cash equivalents - end of year	766.1	763.7	334.2
Cash Flow from Changes in Current Assets and Liabilities, excluding effects of acquisitions and divestitures:
Receivables	(69.2)	(6.9)	6.8
Inventories	(61.5)	(146.1)	(24.2)
Prepaid expenses and other current assets	16.6	(0.1)	(50.5)
Accounts payable	99.5	318.7	145.8
Other current liabilities	(217.4)	92.6	136.8
Changes in current assets and liabilities	$ (232)	$ 258.2	$ 214.7

BASIS OF PRESENTATION AND RECLA

BASIS OF PRESENTATION AND RECLASSIFICATIONS	12 Months Ended
	May 28, 2017
BASIS OF PRESENTATION AND RECLASSIFICATIONS [Abstract]
BASIS OF PRESENTATION AND RECLASSIFICATIONS	NOTE 1 . BASIS OF PRESENTATION AND RECLASSIFICATIONS Basis of Presentation Our Consolidated Financial Statements include the accounts of General Mills, Inc. and all subsidiaries in which we have a controlling financial interest. Intercompany transactions and accounts , including any noncontrolling and redeemable interests’ share o f those transactions, are eliminated in consolidation. Our fiscal year ends on the last Sunday in May. Fiscal years 2017 and 2016 consisted of 52 weeks, while fiscal year 2015 consisted of 53 weeks. Change in Reporting Period As part of a long-term plan to conform the fiscal year ends of al l our operations, in fiscal 2017 we changed the reporting period of General Mills Brasil Alimentos Ltda ( Yoki ) within our Asia & Latin America segment from an April fiscal year-end to a May fiscal year-end to match our fiscal calendar. Accordingly, in fiscal 201 7 , our results included 13 months of results from the affected operations. The impact of these changes was not material to our consolidated results of operations. Our General Mills India business remain s on an April fiscal year end. In fiscal 2016 we changed the reporting period of Yoplait SAS and Yoplait Marques SNC within our Europe & Australia segment and Annie’s, Inc. (Annie’s) within our North America Retail segment from an April fiscal year-end to a May fiscal year-end to match our fiscal calendar. Accordingly, in fiscal 2016 , our results included 13 months of results from the affected operations. The impact of these changes was not material to our consolidated results of operations. Certain reclassifications to our previously reported financial information have been made to conform to the current period present ation .

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	May 28, 2017
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	NOTE 2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Cash and Cash Equivalents We consider all investments purchased with an original maturity of three months or less to be cash equivalents. Inventories All inventories in the United States other than grain are valued at the lower of cost, using the last-in, first-out (LIFO) method, or market. Grain inventories are valued at net realizable value, and all related cash contracts and derivatives are valued at fair value, with all net changes in value recorded in earnings currently. Inventories outside of the United States are generally valued at the lower of cost, using the first-in, first-out (FIFO) method, or net realizable value. Shipping costs associated with the distribution of finished product to our customers are recorded as cost of sales, and are recognized when the related finished product is shipped to and ac cepted by the customer. Land, Buildings, Equipment, and Depreciation Land is recorded at historical cost. Buildings and equipment, including capitalized interest and internal engineering costs, are recorded at cost and depreciated over estimated useful lives, primarily using the straight-line method. Ordinary maintenance an d repairs are charged to cost of sales. Buildings are u sually depreciated over 40 years, and equipment, furniture, and software are usually depreciated over 3 to 10 years. Fully depreciated assets are retained in buildings and equipment until disposa l. When an item is sold or retired, the accounts are relieved of its cost and r elated accumulated depreciation and the resulting gains and losses, if any, are recognized in earnings. As of May 28, 2017 , assets held for sale were insignificant. Long-lived asse ts are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset (or asset group) may not be recoverable. An impairment loss would be recognized when estimated undiscounted future cash flows from the operation and disposition of the asset group are less than the carrying amount of the asset group. Asset groups have identifiable cash flows and are largely independent of other asset groups. Measurement of an impairment loss would be based on the excess o f the carrying amount of the asset group over its fair value. Fair value is measured using a discounted cash flow model or independent appraisals, as appropriate. Goodwill and Other Intangible Assets Goodwill is not subject to amortization and is tested for impairment annually and whenever events or changes in circumstances indicate that impairment may have occurred. In fiscal 2016, we changed the date of our annual goodwill and indefinite-lived intangible asset impairment assessment from the first day of the third quarter to the first day of the second quarter to more closely align with the timing of our annual long-range planning process. Impairment testing is performed for each of our reporting units. We compare the carrying value of a reporting unit, including goodwill, to the fair value of the unit. Carrying value is based on the assets and liabilities associated with the operations of that reporting unit, which often requ ires allocation of shared or corporate items among reporting units. If the carrying amount of a reporting unit exceeds its fair value, we revalue all assets and liabilities of the reporting unit, excluding goodwill, to determine if the fair value of the ne t assets is greater than the net assets including goodwill. If the fair value of the net assets is less than the carrying amount of net assets including goodwill, impairment has occurred. Our estimates of fair value are determined based on a discounted cas h flow model. Growth rates for sales and profits are determined using inputs from our long-range planning process. We also make estimates of discount rates, perpetuity growth assumptions, market comparables, and other factors. We evaluate the useful live s of our other intangible assets, mainly brands, to determine if they are finite or indefinite-lived. Reaching a determination on useful life requires significant judgments and assumptions regarding the future effects of obsolescence, demand, competition, other economic factors (such as the stability of the industry, known technological advances, legislative action that results in an uncertain or changing regulatory environment, and expected changes in distribution channels), the level of required maintenan ce expenditures, and the expected lives of other related groups of assets. Intangible assets that are deemed to have definite lives are amortized on a straight-line basis, over their useful lives, generally ranging from 4 to 30 years. Our indefinite-lived intangible assets, mainly intangible assets primarily associated with the Pillsbury , Totino’s , Progresso , Yoplait , Old El Paso , Yoki , Häagen-Dazs , and Annie’s brands, are also tested for impairment annually and whenever events or changes in circumstances indicate that their carrying value may not be recoverable. Our estimate of the fair value of the brands is based on a discounted cash flow model using inputs which included projected revenues from our long-range plan, assumed royalty rates that could be pa yable if we did not own the brands, and a discount rate. Our finite-lived intangible assets, primarily acquired franchise agreements and customer relationships, are reviewed for impairment whene ver events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. An impairment loss would be recognized when estimated undiscounted future cash flows from the operation and disposition of the asset are less than the carrying amount of the asset. Assets generally have identifiable cash flows and are largely independent of other assets. Measurement of an impairment loss would be based on the excess of the carrying amount of the asset over its fair value. Fair value is measured using a discounted cash flow model or other similar valuation model, as appropriate. Investments in Unconsolidated Joint Ventures Our investments in companies over which we have the ability to exercise significant influence are stated at cost plus our share of undistributed earnings or losses. We receive royalty income from certain joint ventures, incur various expenses (primarily research and development), and record the tax impact of certain joint venture operations that are structured as partnerships. In addition, we make advances to our joint ventures in the form of loans or capital i nvestments. We also sell certain raw materials, semi-finished goods, and finished goods to the joint ventures, generally at market prices. In addition, we assess our investments in our joint ventures if we have reason to believe an impairment may have occ urred including, but not limited to, as a result of ongoing operating losses, projected decreases in earnings, increases in the weighted average cost of capital, or significant business disruptions. The significant assumptions used to estimate fair value include revenue growth and profitability, royalty rates, capital spending, depreciation and taxes, foreign currency exchange rates, and a discount rate. By their nature, these projections and assumptions are uncertain. If we were to determine the current f air value of our investment was less than the carrying value of the investment , then we would assess if the shortfall was of a temporary or permanent nature and write down the investment to its fair value if we conclude d the impairment is other than tempor ary. Redeemable Interest We have a 51 percent control ling interest in Yoplait SAS , a consolidated entity. Sodiaal International (Sodiaal) holds the remaining 49 pe rcent interest in Yoplait SAS. Sodiaal has the ability to put all or a portion of its redeem able interest to us at fair value once per year , up to three times before December 2024 . This put option requires us to classify Sodiaal’s interest as a redeemable interest outside of equity on our Consolidated Balance Sheets for as long as the put is exer cisable by Sodiaal. When the put is no longer exercisable, the redeemable interest will be reclassified to noncontrolling interests on our Consolidated Balance Sheets. We adjust the value of the redeemable interest through additional paid-in capital on our Consolidated Balance Sheets quarterly to the redeemable interest’s redemption value, which approximates its fair value . During the second and third quarters of fiscal 2017 , we adjusted the redeemable interest’s redemption value based on a discounted cash flow model. The significant assumptions used to estimate the r edemption value include projected revenue growth and profitability from our long-range plan, capital spending, depreciation, taxes, foreign currency exchange rates, and a discount rate. Revenue Recognition We recognize sales revenue when the shipment is accepted by our customer. Sales include shipping and handling charges billed to the customer and are reported net of consumer coupon redemption, trade promotion and other costs, including estimated allowances for returns, unsalable product, and prompt pay discounts. Sales, use, value-added, and other excise taxes are not recognized in revenue. Coupons are recorded when distributed, based on estimated redemption rates. Trade promot ions are recorded based on estimated participation and performance levels for offered programs at the time of sale. We generally do not allow a right of return. However, on a limited case-by-case basis with prior approval, we may allow customers to return product. In limited circumstances, product returned in saleable condition is resold to other customers or outlets. Receivables from customers generally do not bear interest. Terms and collection patterns vary around the world and by channel. The allowance for doubtful accounts represents our estimate of probable non-payments and credit losses in our existing receivables, as determined based on a review of past due balances and other specific account data. Account balances are written off against the allowan ce when we deem the amount is uncollectible. Environmental Environmental costs relating to existing conditions caused by past operations that do not contribute to current or future revenues are expensed. Liabilities for anticipated remediation costs are recorded on an undiscounted basis when they are probable and reasonably estimable, generally no later than the completion of feasibility studies or our commitment to a plan of action. Advertising Production Costs We expense the production costs of advert ising the first time that the advertising takes place. Research and Development All expenditures for research and development (R&D) are charged against earnings in the period incurred. R&D includes expenditures for new product and manufacturing process i nnovation, and the annual expenditures are comprised primarily of internal salari es, wages, consulting, and supplies attributable to R&D activities. Other costs include depreciation and maintenance of research facilities, including assets at facilities tha t are engaged in pilot plant activities. Foreign Currency Translation For all significant foreign operations, the functional currency is the local currency. Assets and liabilities of these operations are translated at the period-end exchange rates. Incom e statement accounts are translated using the average exchan ge rates prevailing during the period . Translation adjustments are reflected within accumula ted other comprehensive loss (AOCI) in stockholders’ equity. Gains and losses from foreign currency tran sactions are included in net earnings for the period , except for gains and losses on investments in subsidiaries for which settlement is not planned for the foreseeable future and foreign exchange gains and losses on instruments designated as net investmen t hedges. These gains and losses are recorded in AOCI . Derivative Instruments All d erivatives are recognized on our Consolidated Balance Sheets at fair value based on quoted market prices or our estimate of their fair value, and are recorded in either cu rrent or noncurrent assets or liabilities based on their maturity. Changes in the fair values of derivatives are recorded in net earnings or other comprehensive income, based on whether the instrument is designated and effective as a hedge transaction and, if so, the type of hedge transaction. Gains or losses on derivative instruments reported in AOCI are reclassified to earnings in the period the hedged item affects earnings. If the underlying hedged transaction ceases to exist, any associated amounts repo rted in AOCI are reclassified to earnings at that time. Any ineffectiveness is recognized in earnings in the current period. Stock-based Compensation We generally measure compensation expense for grants of restricted stock units using the value of a shar e of our stock on the date of grant. We estimate the value of stoc k option grants using a Black- Scholes valuation model. Stock -based compensation is recognized straight line over the vesting period. Our stock -based compensation expense is recorded in selli ng, general and administrative ( SG&A ) expenses and cost of sales in our Consolidated Statements of Earnings and allocated to each reportable segment in our segment results. Certain equity-based compensation plans contain provisions that accelerate vesting of awards upon retirement, termination, or death of eligible employees and directors. We consider a stock-based award to be vested when the employee’s retention of the award is no longer contingent on providing subsequent service. Accordingly, the related compensation cost is generally recognized immediately for awards granted to retirement-eligible individuals or over the period from the grant date to the date retirement eligibility is achieved, if less than the stated vesting period. We report the benef its of tax deductions in excess of recognized compensation cost as a financing cash flow, thereby reducing net operating cash flows and increasing net financing cash flows. Defined Benefit Pension, Other Postretirement Benefit , and Postemployment Benefit Plans We sponsor several domestic and foreign defined benefit plans to provide pension, health care, and other welfare benefits to retired employees. Under certain circumstances, we also provide accruable benefits , primarily severance, to former or inactive employees in the Un ited States , Canada , and Mexico . We recognize an obligation for any of these benefits that vest or accumulate with service. Postemployment benefits that do not vest or accumulate with servi ce (such as severance based solely on annual pay rather than years of service) are charged to expense when incurred. Our postemployment benefit plans are unfunded. We recognize the underfunded or overfunded status of a defined benefit pension plan as an asset or liability and recognize changes in the funded status in the year in which the changes occur through AOCI . Use of Estimates Preparing our Consolidated Financial Statements in conformity with accounting principles generally accepted in the United States requires us to make estimates and assumptions that affect reported amounts of assets and liabilities, disclosures of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expe nses during the reporting period. These estimates include our accounting for promotional expenditures, valuation of long-lived assets, intangible assets, redeemable interest, stock-based compensation, income taxes, and defined benefit pension, other p ostre tirement benefit and postemployment benefit plans . Actual results could differ from our estimates. Other New Accounting Standards In the first quarter of fiscal 2017, we adopted new accounting requirements for the presentation of certain investments using the net asset value, providing a practical expedient to exclude such investments from categorization within the fair value hierarc hy and separate disclosure. We adopted the guidance retrospectively and restated the fiscal 2016 fair value of plan asset tables in Note 13. The adoption of this guidance did not impact our results of operations or financial position. In the first quarter of fiscal 2017, we adopted new accounting requirements which permit reporting entities with a fiscal year-end that does not coincide with a month-end to apply a practical expedient that permits the entity to measure defined benefit plan assets and obligations using the month-end that is closest to the entity’s fiscal year-end and apply such practical expedient con sistently to all plans. The adoption of this guidance did not have a material impact on our results of operations or financial position. In the fourth quarter of fiscal 2016, we adopted new accounting requirements for the presentation of deferred tax asse ts and liabilities, requiring noncurrent classification for all deferred tax assets and liabilities on the statement of financial position. This presentation change has been implemented retroactively. The adoption of this guidance did not have a material i mpact on our financial position. In the first quarter of fiscal 2016, we adopted new accounting requirements for the classification of debt issuance costs presented in the balance sheet as a direct reduction from the carrying amount of the debt liability. This presentation change has been implemented retroactively. The adoption of this guidance did not have a material impact on our financial position. In the second quarter of fiscal 2015, we adopted new accounting requirements for share-based payment awar ds issued based upon specific performance targets. The adoption of this guidance did not have a material impact on our results of operations or financial position. In the first quarter of fiscal 2015, we adopted new accounting requirements on the financia l statement presentation of unrecognized tax benefits when a net operating loss, a similar tax loss, or a tax credit carryforward exists. The adoption of this guidance did not have an impact on our results of operations or financial position.

ACQUISITION AND DIVESTITURES

ACQUISITION AND DIVESTITURES	12 Months Ended
	May 28, 2017
ACQUISTION AND DIVESTITURES [Abstract]
ACQUISITION AND DIVESTITURES	NOTE 3. ACQUISITION AND DIVESTITURE S During the second quarter of fiscal 2017, we sold our Martel, Ohio manufacturing facility in our Convenience Stores & Foodservice segment and simultaneously entered into a co-packing agreement with the purchaser. We received $17.5 million in cash, and recorded a pre-tax loss of $13.5 million. During the fourth quarter of fiscal 2016, we sold our General Mills de Venez uela CA subsidiary to a third party and exited our business in Venezuela. As a result of this transaction, we recorded a pre-tax loss of $37.6 million. In addition, we sold our General Mills Argentina S.A. foodservice business in Argentina to a third party and recorded a pre-tax loss of $14.8 million. During the second quarter of fiscal 2016, we sold our North American Green Giant product lines for $822.7 million in cash, and we recorded a pre-tax gain of $199.1 million. We received net cash proceeds of $78 8.0 million after transaction related costs. After the divestiture , we retained a brand intangible asset on our Consolidated Balance Sheets of $30.1 million related to our continued use of the Green Giant brand in certain markets outside of North America. During the second quarter of fiscal 2015, we acquired Annie’s, a publicly traded food company headquartered in Berkeley, California, for an aggregate purchase price of $821.2 million, which we funded by issuing debt. We consolidated Annie’s into our Consol idated Balance Sheets and recorded goodwill of $589.8 million, an indefinite lived intangible asset for the Annie’s brand of $244.5 million, and a finite lived customer relationship asset of $23.9 million. The pro forma effects of this acquisition were not material.

RESTRUCTURING, IMPAIRMENT, AND

RESTRUCTURING, IMPAIRMENT, AND OTHER EXIT COSTS	12 Months Ended
	May 28, 2017
RESTRUCTURING, IMPAIRMENT, AND OTHER EXIT COSTS [Abstract]
RESTRUCTURING, IMPAIRMENT, AND OTHER EXIT COSTS	NOTE 4. RESTRUCTURING , IMPAIRMENT, AND OTHER EXIT COSTS We view our restructuring activities as actions that help us meet our long-term growth targets. Activities we undertake must meet internal rate of return and net present value t argets. Each restructuring action normally takes one to two years to complete. At completion (or as each major stage is completed in the case of multi-year programs), the project begins to deliver cash savings and/or reduced depreciation. These activities result in various restructuring costs, including asset write-offs, exit charges including severance, contract termination fees, and decommissioning and other costs. Accelerated depreciation associated with restructured assets, as used in the context of our disclosures regarding restructuring activity, refers to the increase in deprecia tion expense caused by shortening the useful life or updating the salvage value of depreciable fixed assets to coincide with the end of production under an approved restructur ing plan. Any impairment of the asset is recognized immediately in the period the plan is approved. We are currently pursuing several multi-year restructuring initiatives designed to increase our efficiency and focus our business behind our key growth str ategies. Charges recorded in fiscal 2017 related to these initiatives were as follows: Fiscal 2017 In Millions Severance Asset Write-offs Pension Related Accelerated Depreciation Other Total Global reorganization $ 66.3 $ - $ - $ - $ 5.8 $ 72.1 Closure of Melbourne, Australia plant 11.4 4.5 - 5.6 0.4 21.9 Restructuring of certain international product lines 7.0 37.0 - (0.3) 1.4 45.1 Closure of Vineland, New Jersey plant 12.3 7.9 1.5 14.5 5.2 41.4 Project Compass (1.5) 0.1 - 0.2 0.8 (0.4) Project Century (1.0) 13.0 0.7 18.5 12.8 44.0 Total $ 94.5 $ 62.5 $ 2.2 $ 38.5 $ 26.4 $ 224.1 In the third quarter of fiscal 2017, we approved restructuring actions designed to better align our organizational structure with our strategic initiatives. This action will affect approximately 600 positions and we e xpect to incur approximately $ 75 million of net expenses relating to these actions, all of which will be cash. We recorded $ 72.1 million of restructuring charges relating to these action s in fiscal 2017 . We expect these actions to be completed by the end of fiscal 201 8. In the second quarter of fiscal 2017, we notified the employees and their representatives of our decision to close our pasta manufacturing facility in Melbourne, Australia in our Europe & Australia segment to improve our margin structure. This action will affect approximately 350 positions, and we expect to incur approximately $ 34 million of net expenses relating to this action , of which approximately $3 million will be cash . We recorded $ 21.9 million of restructuring charges relating to this action in fiscal 2017 . We expect this action to be completed by the end of fiscal 2019. In the first quarter of fiscal 2017, we announced a plan to restructure certain product lines in our Asia & Latin America segment. To eliminate excess cap acity, we closed our snacks manufacturing facility in Marília, Brazil and ceased production operations for meals and snacks at our facility in São Bernardo do Campo, Brazil. We also ceased production of certain underperforming snack products at our facilit y in Nanjing, China. These and other actions will affect approximately 420 positions in our Brazilian operations and approximately 440 positions in our Greater China operations. We expect to incur approximately $ 42 million of n et expenses rel ated to these actions, most of which will be non-cash . We recorded $ 45.1 million of restructuring charges relating to th ese action s in fiscal 2017 . We expect these actions to be completed by the end of fiscal 201 9 . In the first quarter of fiscal 2017, we approved a plan to close our Vineland, New Jersey facility to eliminate excess soup capacity in our North America Retail segment. This act ion will affect approximately 38 0 positions, and we expect to incur approximately $ 58 million of net expenses related to this action , of which approximately $ 19 million will be cash. W e recorded $ 41.4 million of restructuring charges relating to this action in fiscal 2017 . We expect this action to be completed by the end of fisca l 2019. Fiscal 2016 In Millions Severance Asset Write-offs Pension Related Accelerated Depreciation Other Total Project Compass $ 45.4 $ - $ 1.4 $ - $ 7.9 $ 54.7 Project Catalyst (8.7) 1.2 - - - (7.5) Project Century 30.9 30.7 19.1 76.5 25.4 182.6 Total $ 67.6 $ 31.9 $ 20.5 $ 76.5 $ 33.3 $ 229.8 In the first quarter of fiscal 2016, we approved Project Compass, a restructuring plan designed to enable our international operations to accelerate long-term growth through increased organizational effectiveness and reduced administrative expense. In connection with this project, we eliminated 749 positions. We incurred $54. 3 million of net expenses, all of which was cash. In fiscal 2017, we reduced the estimate of charges related to this action by $0.4 million. We recorded $ 54.7 million of re structuring charges relating to this action in fiscal 2016 . This action was completed in fiscal 2017. In fiscal 2015, we announced Project Century (Century) which initially involved a review of our North American manufacturing and distribution network to streamline operations and identify potential capacity reductions. In fiscal 2016, we broadened the scope of Century to identify opportunities to streamline our supply chain outside of North America. As part of Century, in the second quarter of fisc al 2016, we approved a restructuring plan to close manufacturing facilities in our Europe & Australia segment supply chain located in Berwick, United Kingdom and East Tamaki, New Zealand. These actions affected 287 positions and we incurred $ 31.8 million of net expenses rel ated to these actions, of which $12 million was cash. We recorded $1.8 million of restructuring charges relating to these actions in fiscal 2017 and $30.0 million in fiscal 2016 . These actions were completed in fiscal 2017. As part of Century, in the first quarter of fiscal 2016, we approved a restructuring plan to close our West Chicago, Illinois cereal and dry dinner manufacturing plant in our North America Retail segment supply chain. This action affect ed 484 posi tions, and we expect to incur approximately $104 million of net expenses relating to this action, of which approximately $41 million will be cash. We recorded $ 23.2 million of restructuring charges relating to this action in fiscal 2017 and $ 79.2 millio n in fiscal 2016. We expect this action to be completed by the end of fiscal 2018. As part of Century, in the first quarter of fiscal 2016, we approved a restructuring plan to close our Joplin, Missouri snacks plant in our North America Retail segment’s supply chain. This action affected 125 positions , and we incurred $6.6 million of net expenses relating to this action, of which less than $1 million was cash. We recorded $6.3 million of restructuring charges relating to this action in fiscal 2016. This a ction was completed in fiscal 2016. Charges recorded in fiscal 2015 were as follows: Fiscal 2015 In Millions Severance Asset Write-offs Pension Related Accelerated Depreciation Other Total Project Catalyst $ 121.5 $ 12.3 $ 6.6 $ - $ 8.0 $ 148.4 Project Century 44.3 42.3 31.2 53.1 10.9 181.8 Combination of certain operational facilities 13.0 0.7 - - 0.2 13.9 Charges associated with restructuring actions previously announced (0.6) - - - - (0.6) Total $ 178.2 $ 55.3 $ 37.8 $ 53.1 $ 19.1 $ 343.5 In the second quarter of fiscal 2015, we approved Project Catalyst, a restructuring plan to increase organizational effectiveness and reduce overhead expense. In connection with this project, 759 positions were impacted, primarily in the United States. We incurred $140.9 million of net expenses relating to this action of which approximately $94 million was cash. We recorded $148.4 million of restructuring charges relating to this action in fiscal 2015. This action was substantially completed in fiscal 2015. As part of Century, in the third quarter of fiscal 2015, we approved a restructuring plan to reduce our refrigerated dough capacity and exit our Midland, Ontario, Canada and New Albany, Indiana facilities, which support our North America Retail and Convenience Stores & Foodservice segments’ supply chains. The Midland action affected 9 4 positions and we expect to incur approximately $13 million of net expenses relating to this a ction, of which approximately $7 million will be cash. We recorded $1.8 million of restructuring charges relating to this action in fiscal 2017, $2.7 million in fiscal 2016 and $6.5 million in fiscal 2015. The New Albany action will affect 4 1 2 positions, and we expect to incur approximately $83 million of net expenses relating to this action of which approximately $40 million will be cash. We recorded $14.6 million of restructuring charges relating to this action in fiscal 2017, $17.1 million in fiscal 2016 and $51.3 million in fiscal 2015. We anticipate these actions will be c ompleted by the end of fiscal 2018. As part of Century, in t he second quarter of fiscal 2015, we approved a restructuring plan to consolidate yogurt manufacturing capacity and exit our Methuen, Massachusetts facility in our North America Retail and Conven ience Stores & Foodservice segment s’ supply chain s. This action affected 170 positions. We incurred $59 .7 million of net expenses relating to this action of which $13 million was cash. We recorded $15.6 million of restructuring charges relating to this action in fiscal 2016 and $43.6 million in fiscal 2015. This action was substa ntially completed in fiscal 2017 . As part of Century, in the second quart er of fiscal 2015, we approved a restructuring plan to eliminate excess cereal and dry mix capacity an d exit our Lodi, California facility in our North America Retail segment suppl y chain. This action affected 409 positions. We incurred $95.3 million of net expenses related to this action of which $22 million was cash. We recorded $1.5 million of restruct uring charges relating to this action in fiscal 2017, $30.6 million in fiscal 2016 and $63.2 million in fiscal 2015. This action was substantially completed in fiscal 2016. In addition to the actions taken at certain facilities described above, we incu rred restructuring charges related to Century of $1.1 million in fiscal 2017 , none of which was cash, $1.1 million in fiscal 2016 and $17.2 million in fiscal 2015. During the first quarter of fiscal 2015, we approved a plan to combine certain Yoplai t and General Mills operational facilities within our North America Retail and Europe & Australia segments to increase efficiencies and reduce costs. This action affect ed approximately 240 positions. We expect to incur $15 million of net expenses relating to this action of which $14 million will be cash. We recorded $13.9 million of restructuring charges in fiscal 2015. We anticipate these actions will be completed by the end of fiscal 2018. We paid cash related to restructuring initiatives of $107.8 million in fi scal 2017, $122.6 million in fiscal 2016 and $63.6 million in fiscal 2015. In addition to restructuring charges, we expect to incur approximately $130 million of additional project-related costs , which will be recorded in cost of sales, all of which wil l be cash. We recorded project-related costs in cost of sales of $ 43.9 million in fiscal 2017 , $57. 5 million in fiscal 2016 and $13.2 million in fiscal 2015. We paid cash for project-related costs of $46.9 million in fiscal 2017 , $54. 5 million in fiscal 2016 and $9.7 million in fiscal 2015. Restructuring cha r ges and project-related costs are classified in our Consolidated Statements of Earnings as follows: Fiscal In Millions 2017 2016 2015 Cost of sales $ 41.5 $ 78.4 $ 59.6 Restructuring, impairment, and other exit costs 182.6 151.4 283.9 Total restructuring charges 224.1 229.8 343.5 Project-related costs classified in cost of sales $ 43.9 $ 57.5 $ 13.2 The roll forward of our restructuring and other exit cost reserves, included in other current liabilities, is as follows: In Millions Severance Contract Termination Other Exit Costs Total Reserve balance as of May 25, 2014 $ 3.5 $ - $ - $ 3.5 Fiscal 2015 charges, including foreign currency translation 176.4 0.6 8.1 185.1 Utilized in fiscal 2015 (61.3) - (6.5) (67.8) Reserve balance as of May 31, 2015 118.6 0.6 1.6 120.8 Fiscal 2016 charges, including foreign currency translation 64.3 1.6 4.3 70.2 Utilized in fiscal 2016 (109.3) (0.7) (4.4) (114.4) Reserve balance as of May 29, 2016 73.6 1.5 1.5 76.6 Fiscal 2017 charges, including foreign currency translation 95.0 0.9 8.1 104.0 Utilized in fiscal 2017 (86.8) (1.7) (7.1) (95.6) Reserve balance as of May 28, 2017 $ 81.8 $ 0.7 $ 2.5 $ 85.0 The charges recognized in the roll forward of our reserves for restructuring and other exit costs do not include items charged directly to expense (e.g., asset impairment charges, the gain or loss on the sale of restructured assets, and the write-off of spare parts) and other periodic exit costs recognized as incurred, as those items are not reflected in our restructuring and other exit cost reserves on our Consolidated Balance Sheets.

INVESTMENTS IN UNCONSOLIDATED J

INVESTMENTS IN UNCONSOLIDATED JOINT VENTURES	12 Months Ended
	May 28, 2017
INVESTMENTS IN UNCONSOLIDATED JOINT VENTURES [Abstract]
INVESTMENTS IN UNCONSOLIDATED JOINT VENTURES	NOTE 5. INVESTMENTS IN UNCONSOLIDATED JOINT VENTURES We have a 50 percent equity interest in Cereal Partners Worldwide (CPW), which manufactures and markets ready-to-eat cereal products in more than 130 countries outside the United States and Canada. CPW also markets cereal bars in several European countries and manufactures private label cereals for customers in the United Kingdom. We have guaranteed a portion of CPW’s debt and its pension obligation in the United Kingdom. We also have a 50 percent equity interest in Häagen-Dazs Japan, Inc. (HDJ). T his joint venture manufactures and markets Häagen-Dazs ice cream products and frozen novelties . Results from our CPW and HDJ joint ventures are reported for the 12 months ended March 31. Joint venture related balance sheet activity follows: In Millions May 28, 2017 May 29, 2016 Cumulative investments $ 505.3 $ 518.9 Goodwill and other intangibles 472.0 469.2 Aggregate advances included in cumulative investments 284.7 300.3 Joint venture earnings and cash flow activity follows: Fiscal Year In Millions 2017 2016 2015 Sales to joint ventures $ 7.0 $ 10.5 $ 11.6 Net advances (repayments) (3.3) (63.9) 102.4 Dividends received 75.6 75.1 72.6 Summary combined financial information for the joint ventures on a 100 percent basis follows: Fiscal Year In Millions 2017 2016 2015 Net sales: CPW $ 1,648.4 $ 1,674.8 $ 1,894.5 HDJ 435.1 369.4 370.2 Total net sales 2,083.5 2,044.2 2,264.7 Gross margin 865.9 867.6 925.4 Earnings before income taxes 243.3 234.8 220.9 Earnings after income taxes 190.3 186.7 170.7 In Millions May 28, 2017 May 29, 2016 Current assets $ 849.7 $ 814.1 Noncurrent assets 858.9 959.9 Current liabilities 1,469.6 1,457.3 Noncurrent liabilities 55.2 81.7

GOODWILL AND OTHER INTANGIBLE A

GOODWILL AND OTHER INTANGIBLE ASSETS	12 Months Ended
	May 28, 2017
GOODWILL AND OTHER INTANGIBLE ASSETS [Abstract]
GOODWILL AND OTHER INTANGIBLE ASSETS	NOTE 6 . GOODWILL AND OTHER INTANGIBLE ASSETS The components of goodwill and other intangible assets are as follows: In Millions May 28, 2017 May 29, 2016 Goodwill $ 8,747.2 $ 8,741.2 Other intangible assets: Intangible assets not subject to amortization: Brands and other indefinite-lived intangibles 4,161.1 4,147.5 Intangible assets subject to amortization: Franchise agreements, customer relationships, and other finite-lived intangibles 524.8 536.9 Less accumulated amortization (155.5) (145.8) Intangible assets subject to amortization 369.3 391.1 Other intangible assets 4,530.4 4,538.6 Total $ 13,277.6 $ 13,279.8 Based on the carrying value of finite-lived intangible assets as of May 28, 2017 , amortization expense for each of the next five fiscal years is estimated to be approximately $28 million. During the third quarter of fiscal 2017, we announced a new global organization structure to streamline our leadership, enhance global scale, and drive improved operational agility to maximize our growth capabilities. As a result of this global reorganization, we reassessed our operating segments and our reporting units. Under our new organization structure, our chief operating decision maker assesses performance and makes decisions about resources to be allocated to our segments at the North America Retail, Convenience Stores & Foodservice, Europe & Australia, and Asia & Latin America operating segment level. See Note 16 for additional information on our operating segments. Our reporting units were unchanged with the exception of combining our former U.S. Meals and U.S. Baking reporting units into a single reporting unit. The changes in the carrying amount of goodwill for fiscal 2015 , 2016 , and 2017 are as follows: In Millions North America Retail Convenience Stores & Foodservice Europe & Australia Asia & Latin America Joint Ventures Total Balance as of May 25, 2014 $ 5,975.1 $ 921.1 $ 866.1 $ 390.0 $ 498.2 $ 8,650.5 Acquisition 589.8 - - - - 589.8 Other activity, primarily foreign currency translation (18.7) - (147.0) (103.0) (96.7) (365.4) Balance as of May 31, 2015 6,546.2 921.1 719.1 287.0 401.5 8,874.9 Acquisitions 54.1 - - 29.4 - 83.5 Divestitures (184.5) - - (1.9) - (186.4) Other activity, primarily foreign currency translation (5.5) - (2.6) (27.4) 4.7 (30.8) Balance as of May 29, 2016 6,410.3 921.1 716.5 287.1 406.2 8,741.2 Divestiture - (2.3) - - - (2.3) Other activity, primarily foreign currency translation (3.8) - (15.7) 25.3 2.5 8.3 Balance as of May 28, 2017 $ 6,406.5 $ 918.8 $ 700.8 $ 312.4 $ 408.7 $ 8,747.2 The changes in the carrying amount of other intangible assets for fiscal 2015 , 2016 , and 2017 are as follows: In Millions Total Balance as of May 25, 2014 $ 5,014.3 Acquisition 268.4 Impairment charge (260.0) Other activity, primarily amortization and foreign currency translation (345.7) Balance as of May 31, 2015 4,677.0 Acquisitions 30.1 Divestiture (119.6) Other activity, primarily amortization and foreign currency translation (48.9) Balance as of May 29, 2016 4,538.6 Other activity, primarily amortization and foreign currency translation (8.2) Balance as of May 28, 2017 $ 4,530.4 Our annual goodwill intangible asset test was performed on the first day of th e second quarter of fiscal 2017. As of the assessment date, we determined there was no impairment of our goodwill intangible assets as their related fair values were substantially in excess of the carrying values, except for the Latin America reporting unit. We did not consider the new organization structure to be a triggering event requiring a subsequent goodwill impairment test as our reporting units remain unchanged , with the exception of combining the former U.S. Meals and U.S. Baking reporting units. Our indefinite-lived intangible asset test was performed on the first day of the second quarter of fiscal 2017. As of the assessment date, there was no impairment of any of our indefinite-lived intangible assets as their related fair values were substantially in excess of the carrying values, except for the Immaculate Baking brand intangible asset. The excess fair value above the carrying value of the Latin America re porting unit and the Immaculate Baking brand intangible asset is as follows: In Millions Carrying Value Excess Fair Value Above Carrying Value Latin America $523.0 15 % Immaculate Baking $12.0 17 % While having significant coverage as of our fiscal 2017 assessment date, the Progresso, Green Giant, and Food Should Taste Good brand intangible assets and U.S. Yogurt reporting unit h ad risk of decreasing coverage. We will continue to monitor these businesses for potential impairment. In fiscal 2015, we made a strategic decision to re direct certain resources supporting our Green Giant business in our North America Retail segment to other businesses within the segment. Therefore , future sales and profit ability projections in our long- range plan for this business declined. As a result of this triggering event, we performed an interim impairment assessment of the Green Giant brand intangible asset as of May 31, 2015 , and determined that the fair value of the brand a sset no longer exceed ed the carrying value of the asset. Significant assumptions used in that asses sment included our updated long- range cash flow projections for the Green Giant business, an updated royalty rate, a weighted-average cost of capital, and a tax rate. We recorded a $260 .0 million impairment charge in restructuring, impairment, and other exit costs in fiscal 2015 related to this asset.

FINANCIAL INSTRUMENTS, RISK MAN

FINANCIAL INSTRUMENTS, RISK MANAGEMENT ACTIVITIES, AND FAIR VALUES	12 Months Ended
	May 28, 2017
FINANCIAL INSTRUMENTS, RISK MANAGEMENT ACTIVITIES, AND FAIR VALUES [Abstract]
FINANCIAL INSTRUMENTS, RISK MANAGEMENT ACTIVITIES, AND FAIR VALUES	NOTE 7 . FINANCIAL INSTRUMENTS, RISK MAN A GEMENT ACTIVITIES, AND FAIR VALUES FINANCIAL INSTRUMENTS The carrying values of cash and cash equivalents, receivables, accounts payable, other current liabilities, and notes payable approximate fair value. Marketable securities are carried at fair value. As of May 28, 2017 and May 29, 2016 , a comparison of cost and market values of our marketable debt and equity securities is as follows: Cost Fair Value Gross Gains Gross Losses Fiscal Year Fiscal Year Fiscal Year Fiscal Year In Millions 2017 2016 2017 2016 2017 2016 2017 2016 Available for sale: Debt securities $ 265.4 $ 165.7 $ 265.5 $ 165.8 $ 0.1 $ 0.1 $ - $ - Equity securities 1.8 1.8 9.9 8.4 8.1 6.6 - - Total $ 267.2 $ 167.5 $ 275.4 $ 174.2 $ 8.2 $ 6.7 $ - $ - There were no realized gains or losses from sales of available-for-sale marketable securities. Gains and losses are determined by specific identification. Classification of marketable securities as current or noncurrent is dependent upon our intended holding period and the security’s maturity date. The aggregate unrealized gains and losses on avail able-for-sale securities, net of tax effects, are classified in AOCI within stockholders’ equity. Scheduled maturities of our marketable securities are as follows: Available for Sale In Millions Cost Fair Value Under 1 year (current) $ 265.4 $ 265.5 Equity securities 1.8 9.9 Total $ 267.2 $ 275.4 As of May 28, 2017 , we did not any have cash and cash equivalents pledged as collateral for derivative contracts. As of May 28, 2017 , $19.6 million of certain accounts receivable wer e pledged as collateral against a foreign uncommitted line of credit. The fair value and carrying amounts of long-term debt, including the current portion, were $8 , 547 .0 million and $ 8,247.6 million, respectively, as of May 28, 2017 . The fair value of long-term debt was estimated using ma rket quotations and discounted cash flows based on our current incremental borrowing rates for similar types of instruments. Long-term debt is a Level 2 liability in the fair value hierarchy. RISK MANAGEMENT ACTIVITIES As a part of our ongoing operations, we are exposed to market risks su ch as changes in interest and foreign cu rrency exchange rates and commodity and equity prices . To manage these risks, we may enter into various derivative transactions (e.g., futures, options, and swaps) pursuant to our established policies. COMMODITY PRICE RISK Many commodities we use in the production and distribution of our products are exposed to market price risks. We utilize derivatives to manage price risk for our principal ingredients and energy costs, including grains (oats, wheat, and corn), oils (principally soybean), dairy products, natural gas, and diesel fuel. Our primary objective when entering into these derivative contracts is to achieve certainty with regard to the future price of commodities purchased for use in our supply chain. We manage our exposures through a combination of purchase orders, long-term contracts with suppliers, exchange-traded futures and options, and over-the-counter options and swaps. We offset our exposures based on current and projected market conditio ns and generally seek to acquire the inputs at as close to our planned cost as possible. We use derivatives to manage our exposure to changes in commodity prices. We do not perform the assessments required to achieve hedge accounting for commodity derivative positions. Accordingly, the changes in the values of these derivatives are recorded currently in cost of sales in our Consolidated Statements of Earnings. Although we do not meet the criteria for cash flow hedge accounting, we believe that these instruments are effective in achieving our objective of providing certainty in the future pri ce of commodities purchased for use in our supply chain. Accordingly, for purposes of measuring segment operating performance these gains and losses are reported in unallocated corporate items outside of segment operating results until such time that the e xposure we are managing affects earnings. At that time we reclassify the gain or loss from unallocated corporate items to segment operating profit, allowing our operating segments to realize the economic effects of the derivative without experiencing any r esulting mark-to-market volatility, which remains in unallocated corporate items. Unallocated corporate items for fiscal 2017 , 2016 and 2015 included: Fiscal Year In Millions 2017 2016 2015 Net loss on mark-to-market valuation of commodity positions $ (22.0) $ (69.1) $ (163.7) Net loss on commodity positions reclassified from unallocated corporate items to segment operating profit 32.0 127.9 84.4 Net mark-to-market revaluation of certain grain inventories 3.9 4.0 (10.4) Net mark-to-market valuation of certain commodity positions recognized in unallocated corporate items $ 13.9 $ 62.8 $ (89.7) As of May 28, 2017 , the net notional value of c ommodity derivatives was $410.3 million, of which $289.6 million related to agricultural inputs and $120.7 million related to energy inputs . These contracts relate to inputs that generally will be utilized within the next 12 months. INTEREST RATE RISK We are exposed to interest rate volatility with regard to future issuances of fixed-rate debt, and existing and future issuances of floating-rate debt. Primary exposures include U.S. Treasury rates, LIBOR, Euribor, and commercial paper rates in the United States and Europe. We use interest rate swaps, forward-starting interest rate swaps, and treasury locks to hedge our exposure to interest rate changes, to reduce the volatility of our financing costs, and to achieve a desired proportio n of fixed rate versus floating-rate debt, based on current and projected market conditions. Generally under these swaps, we agree with a counterparty to exchange the difference between fixed-rate and floating-rate interest amounts based on an agreed upon notional principal amount. Floating Interest Rate Exposures — Floating-to-fixed interest rate swaps are accounted for as cash flow hedges, as are all hedges of forecasted issuances of debt. Effectiveness is assessed based on either the perfectly effective hypothetical derivative method or changes in the present value of interest payments on the underlying debt. Effective gains and losses deferred to AOCI are reclassified into earnings over the life of the associated debt. Ineffective gains and losses are recorded as net interest. The amount of hedge ineffectiveness was less than $1 million in each of fiscal 2017 , 2016 , and 2015 . Fixed Interest Rate Exposures — Fixed-to-floating interest rate swaps are accounted for as fair value hedges with effectiveness assessed based on chan ges in the fair value of the underlying debt and derivatives, using incremental borrowing rates currently available on loans with similar terms and maturities. Ineffective gains and losses on these derivatives and the underlying hedged items are recorded a s net interest. The amount of hedge ineffectiveness was a $4.3 million gain in fiscal 2017 , less than $1 million in fiscal 2016, and a $1.6 million gain in fiscal 2015. In advance of planned debt financing, in the first quarter of fiscal 2017 and the thi rd quarter of fiscal 2016, we entered into $100 million and $400 million, respectively, of treasury locks due February 15, 2017 with an average fixed rate of 2.0 percent. All of these treasury locks were cash settled for $17.2 million during the third quar ter of fiscal 2017, concurrent with the issuance of our $750.0 million 10-year fixed-rate notes. In fiscal 2015, we entered into swaps to convert $500.0 million of 1.4 percent fixed-rate notes due October 20, 2017, and $500.0 million of 2.2 percent fixed- rate notes due October 21, 2019, to floating rates. As of May 28, 2017 , the pre-tax amount of cash-settled interest rate hedge gain or loss remaining in AOCI, which will be reclassified to earnings over the remaining term of the related underlying debt, follow s: In Millions Gain/(Loss) 5.65% notes due February 15, 2019 0.8 3.15% notes due December 15, 2021 (45.0) 1.0% notes due April 27, 2023 (1.4) 3.65% notes due February 15, 2024 12.0 3.2% notes due February 10, 2027 16.6 1.5% notes due April 27, 2027 (3.2) 5.4% notes due June 15, 2040 (12.9) 4.15% notes due February 15, 2043 10.1 Net pre-tax hedge loss in AOCI $ (23.0) The following table summarizes the notional amounts and weighted-average interest rates of our interest rate derivatives. Average floating rates are based on rates as of the end of the reporting period. In Millions May 28, 2017 May 29, 2016 Pay-floating swaps - notional amount $ 1,000.0 $ 1,000.0 Average receive rate 1.8 % 1.8 % Average pay rate 1.6 % 1.1 % The swap contracts mature as follows: In Millions Pay Floating 2018 $ 500.0 2020 $ 500.0 Total $ 1,000.0 The following table s reconcile the net fair values of assets and liabilities subject to offsetting arran gements that are recorded in our C onsolidated B alance S heets to the net fair values that could be reported in our Consolidated B alance S heets: May 28, 2017 Assets Liabilities Gross Amounts Not Offset in the Balance Sheet (e) Gross Amounts Not Offset in the Balance Sheet (e) In Millions Gross Amounts of Recognized Assets Gross Liabilities Offset in the Balance Sheet (a) Net Amounts of Assets (b) Financial Instruments Cash Collateral Received Net Amount (c) Gross Amounts of Recognized Liabilities Gross Assets Offset in the Balance Sheet (a) Net Amounts of Liabilities (b) Financial Instruments Cash Collateral Pledged Net Amount (d) Commodity contracts $11.5 $- $11.5 $(7.2) $- $4.3 $(8.2) $- $(8.2) $7.2 $- $(1.0) Interest rate contracts 0.9 - 0.9 (0.5) - 0.4 (0.5) - (0.5) 0.5 - - Foreign exchange contracts 16.5 - 16.5 (7.2) - 9.3 (10.2) - (10.2) 7.2 - (3.0) Equity contracts 1.9 - 1.9 - - 1.9 - - - - - - Total $30.8 $- $30.8 $(14.9) $- $15.9 $(18.9) $- $(18.9) $14.9 $- $(4.0) (a) Includes related collateral offset in our Consolidated Balance Sheets. (b ) N et fair value as recorded in our C onsolidated B alance S heets. (c ) Fair value of assets t hat could be reported net in our C onsolidated B alance S heets. (d) Fair value of liabilities that could be reported net in our Consolidated Balance Sheets. (e) Fair value of assets and liabilities reported on a gross basis in our Consolidated Balance Sheets. May 29, 2016 Assets Liabilities Gross Amounts Not Offset in the Balance Sheet (e) Gross Amounts Not Offset in the Balance Sheet (e) In Millions Gross Amounts of Recognized Assets Gross Liabilities Offset in the Balance Sheet (a) Net Amounts of Assets (b) Financial Instruments Cash Collateral Received Net Amount (c) Gross Amounts of Recognized Liabilities Gross Assets Offset in the Balance Sheet (a) Net Amounts of Liabilities (b) Financial Instruments Cash Collateral Pledged Net Amount (d) Commodity contracts $4.4 $- $4.4 $(3.9) $- $0.5 $(22.2) $- $(22.2) $3.9 $7.5 $(10.8) Interest rate contracts 8.5 - 8.5 - - 8.5 (3.0) - (3.0) - - (3.0) Foreign exchange contracts 25.4 - 25.4 (8.7) - 16.7 (13.7) - (13.7) 8.7 - (5.0) Equity contracts 2.4 - 2.4 - - 2.4 - - - - - - Total $40.7 $- $40.7 $(12.6) $- $28.1 $(38.9) $- $(38.9) $12.6 $7.5 $(18.8) (a ) Includes related collateral offset in our C onsolidated B alance S heets. (b ) N et fair value as recorded in our C onsolidated B alance S heets. (c ) Fair value of assets t hat could be reported net in our C onsolidated B alance S heets. (d) Fair value of liabilities that could be reported net in our Consolidated Balance Sheets. (e) Fair value of assets and liabilities reported on a gross basis in our Consolidated Balance Sheets. FOREIGN EXCHANGE RISK Foreign currency fluctuations affect our net investments in foreign subsidiaries and foreign currency cash flows related to third party purchases, intercompany loans, product shipments, and foreign-denominated debt. We are also exposed to the translation of foreign currency earnings to the U.S. dollar. Our principal exposures are to the Australian dollar, Brazilian real, British pound sterling, Canadian dollar, Chinese renminbi, euro, Japanese yen, Mexican peso, and Swiss franc. We primarily use foreign currency forward contracts to selectively hedge our foreign currency cash flow exposures. We also generally swap our foreign-denominated commercial paper borrowings and nonfunctional currency intercompany loans back to U.S. dollars or the functional currency of the entity with foreign exchange exposure. The gains or losses on these derivatives offset the foreign currency revaluation gains or losses recorded in earnings on the associated borrowings. We generally do not hedge more tha n 18 months in advance. As of May 28, 2017 , the net notional value of foreign exchange derivatives was $850.2 million . The amount of hedge ineffectiveness was less than $1 million in each of fiscal 2017 , 2016 , and 2015 . We also have many net investments in foreign subsidiaries that are denominated in euros. We previously hedged a portion of these net investments by issuing euro-denominated commercial paper and foreign exchange forward contracts. As of May 28, 2017 , we hedged a portion of these net investments with € 2,200 million of euro denominated bonds. As of May 28, 2017 , we had deferred net foreign currency transaction losses of $39 .1 million in AOCI associated with net investment hedging activity. Venezuela is a highly inf lationary economy and as such, we remeasured the value of the assets and liabilities of our former Venezuelan subsidiary based on the exchange rate at which we expected to remit dividends in U.S. dollars from the SIMADI market. In fiscal 2015, we recorded an $8 million foreign exchange loss. In the fourth quarter of fiscal 2016, we sold our General Mills de Venezuela CA subsidiary to a third party and exited our business in Venezuela. EQUITY INSTRUMENTS Equity price movements affect our compensation expe nse as certain investments made by our employees in our deferred compensation plan are revalued . We use equity swaps to manage this risk . As of May 28, 2017 , the net notional amount of our equity swaps was $138.9 million. These swap contracts mature in fiscal 2018. FAIR VALUE MEASUREMENTS AND FINANCIAL STATEMENT PRESENTATION The fair values of our assets, liabilities, and derivative positions recorded at fair value and their respective levels in the fair value hierarchy as of May 28, 2017 and May 29, 2016 , were as follows: May 28, 2017 May 28, 2017 Fair Values of Assets Fair Values of Liabilities In Millions Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Derivatives designated as hedging instruments: Interest rate contracts (a) (b) $ - $ 0.7 $ - $ 0.7 $ - $ (0.4) $ - $ (0.4) Foreign exchange contracts (c) (d) - 16.3 - 16.3 - (3.6) - (3.6) Total - 17.0 - 17.0 - (4.0) - (4.0) Derivatives not designated as hedging instruments: Foreign exchange contracts (c) (d) - 0.2 - 0.2 - (6.6) - (6.6) Commodity contracts (c) (e) 4.1 7.4 - 11.5 (3.4) (4.8) - (8.2) Grain contracts (c) (e) - 2.7 - 2.7 - (5.6) - (5.6) Total 4.1 10.3 - 14.4 (3.4) (17.0) - (20.4) Other assets and liabilities reported at fair value: Marketable investments (a) (f) 9.9 265.5 - 275.4 - - - - Long-lived assets (g) - 43.7 - 43.7 - - - - Total 9.9 309.2 - 319.1 - - - - Total assets, liabilities, and derivative positions recorded at fair value $ 14.0 $ 336.5 $ - $ 350.5 $ (3.4) $ (21.0) $ - $ (24.4) (a) These contracts and investments are recorded as prepaid expenses and other current assets, other assets, other current liabilities or other liabilities, as appropriate, based on whether in a gain or loss position. Certain marketable investments are recorded as cash and cash equivalents. (b) Based on LIBOR and swap rates. (c) These contracts are recorded as prepaid expenses and other current assets, other assets, other current liabilities or other liabilities, as appropriate, based on whether in a gain or loss position. (d) Based on observable market transactions of spot currency rates and forward currency prices. (e) Based on prices of futures exchanges and recently reported transactions in the marketplace. (f) Based on prices of common stock and bond matrix pricing. (g) We recorded $47.4 million in non-cash impairment charges in fiscal 2017 to write down certain long-lived assets to their fair value. Fair value was based on recently reported transactions for similar assets in the marketplace. These asse ts had a carrying value of $91.1 million and were associated with the restructuring actions described in Note 4. May 29, 2016 May 29, 2016 Fair Values of Assets Fair Values of Liabilities In Millions Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Derivatives designated as hedging instruments: Interest rate contracts (a) (b) $ - $ 7.7 $ - $ 7.7 $ - $ (3.0) $ - $ (3.0) Foreign exchange contracts (c) (d) - 12.2 - 12.2 - (12.2) - (12.2) Total - 19.9 - 19.9 - (15.2) - (15.2) Derivatives not designated as hedging instruments: Foreign exchange contracts (c) (d) - 13.2 - 13.2 - (1.5) - (1.5) Commodity contracts (c) (e) 2.6 1.7 - 4.3 (0.6) (21.6) - (22.2) Grain contracts (c) (e) - 1.8 - 1.8 - (5.5) - (5.5) Total 2.6 16.7 - 19.3 (0.6) (28.6) - (29.2) Other assets and liabilities reported at fair value: Marketable investments (a) (f) 8.4 165.8 - 174.2 - - - - Long-lived assets (g) - 26.0 - 26.0 - - - - Total 8.4 191.8 - 200.2 - - - - Total assets, liabilities, and derivative positions recorded at fair value $ 11.0 $ 228.4 $ - $ 239.4 $ (0.6) $ (43.8) $ - $ (44.4) (a) These contracts and investments are recorded as prepaid expenses and other current assets, other assets, other current liabilities or other liabilities, as appropriate, based on whether in a gain or loss position. Certain marketable investments are recorded as cash and cash equivalents. (b) Based on LIBOR and swap rates. (c) These contracts are recorded as prepaid expenses and other current assets or as other current liabilities, as appropriate, based on whether in a gain or loss position. (d) Based on observable market transactions of spot currency rates and forward currency prices. (e) Based on prices of futures exchanges and recently reported transactions in the marketplace. (f) Based on prices of common stock and bond matrix pricing. (g) We reco rded $11.4 million in non-cash impairment charges in fiscal 2016 to write down certain long-lived assets to their fair value. Fair value was based on recently reported transactions for similar assets in the marketplace. These assets had a carrying value of $28.2 million and were associated with the restructuring actions described in Note 4. We did not significantly change our valuation techniques from prior periods. Information related to our cash flow hedges, fair value hedges, and other derivatives not designated as hedging instruments for the fiscal years ended May 28, 2017 and May 29, 2016 , follows: Interest Rate Contracts Foreign Exchange Contracts Equity Contracts Commodity Contracts Total Fiscal Year Fiscal Year Fiscal Year Fiscal Year Fiscal Year In Millions 2017 2016 2017 2016 2017 2016 2017 2016 2017 2016 Derivatives in Cash Flow Hedging Relationships: Amount of gain (loss) recognized in other comprehensive income (OCI) (a) $ 24.0 $ (2.6) $ 46.3 $ 21.2 $ - $ - $ - $ - $ 70.3 $ 18.6 Amount of net gain (loss) reclassified from AOCI into earnings (a) (b) (5.0) (10.6) 33.8 22.1 - - - - 28.8 11.5 Amount of net gain (loss) recognized in earnings (c) 0.1 (0.1) 0.6 (0.7) - - - - 0.7 (0.8) Derivatives in Fair Value Hedging Relationships: Amount of net gain recognized in earnings (d) 4.3 0.1 - - - - - - 4.3 0.1 Derivatives in Net Investment Hedging Relationships: Amount of loss recognized in OCI (a) - - - (0.2) - - - - - (0.2) Derivatives Not Designated as Hedging Instruments: Amount of net gain (loss) recognized in earnings (d) - - 7.6 1.1 17.8 (4.5) (16.2) (56.1) 9.2 (59.5) (a) Effective portion. (b) Gain (loss) reclassified from AOCI into earnings is reported in interest, net for interest rate swaps and in cost of sales and SG&A expenses for foreign exchange contracts. (c) Gain (loss) recognized in earnings is related to the ineffective portion of the hedging relationship, including SG&A expenses for foreign exchange contracts and interest, net for interest rate contracts. No amounts were reported as a result of being excluded from the assessment of hedge effectiveness. (d) Gain (loss) recognized in earnings is reported in interest, net for interest rate contracts, in cost of sales for commodity contracts, and in SG&A expenses for equity contracts and foreign exchange contracts. AMOUNTS RECORDED IN ACCUMULATED OTHER COMPREHENSIVE LOSS As of May 28, 2017 , the after-tax amounts of unrealized gains and losses in AOCI related to hedge derivatives follows: In Millions After-Tax Gain/(Loss) Unrealized losses from interest rate cash flow hedges $ (12.9) Unrealized gains from foreign currency cash flow hedges 14.4 After-tax gain in AOCI related to hedge derivatives $ 1.5 The net amount of pre- tax gains and losses in AOCI as of May 28, 2017 that we expect to be reclassified into net earnings within the next 12 months is $11.7 million of gain. CREDIT-RISK-RELATED CONTINGENT FEATURES Certain of our derivative instruments contain provisions that require us to maintain an investment grade credit rating on our debt from each of the major credit rating agencies. If our debt were to fall below investment grade, the counterparties to the derivative instruments could request full collateralization on derivative instruments in net liability positions. The aggregate fair value of all derivative instruments with credit-risk-related contingent feature s that were in a liability position on May 28, 2017 , was $1 .0 million. We have posted no collateral under these contracts. If the credit- risk-related contingent features underlying these agreements had been triggered on May 28, 2017 , we would have been required to p ost $1.0 million of collateral to counterparties. CONCENTRATIONS OF CREDIT AND COUNTERPARTY CREDIT RISK During fiscal 2017 , customer concentration was as follows: Percent of total Consolidated North America Retail Convenience Stores & Foodservice Europe & Australia Asia & Latin America Wal-mart (a): Net sales 20% 29% 7% 2% 4% Accounts receivable 24% 8% 1% 4% Five largest customers: Net sales 52% 48% 31% 10% (a) Includes Wal-Mart Stores, Inc. and its affiliates. No customer other than Wal-Mart accounted for 10 percent or more of our consolidated net sales. We enter into interest rate, foreign exchange, and certain commodity and equity derivatives, primarily with a diversified group of highly rated counterparties. We continually monitor our positions and the credit ratings of the counterparties involved and, by policy, limit the amount of credit exposure to any one party. These transactions may expose us to potential losses due to the risk of nonperformance by these counterparties; however, we have not incurred a material loss. We also enter into commodity fut ures transactions through various regulated exchanges. The amount of loss due to the credit risk of the counterparties, should the counterparties fail to perform according to the terms of the contracts, is $5.8 million against which we do not hold collate ral. Under the terms of our swap agreements, some of our transactions require collateral or other security to support financial instruments subject to threshold levels of exposure and counterparty credit risk. Collateral assets are either cash or U.S. Trea sury instruments and are held in a trust account that we may access if the counterparty defaults . We off er certain suppliers access to third party service s that allows them to view our scheduled payments online. The third party service s also allow suppli ers to finance advances on our scheduled payments at the sole discretion of the supplier and the third party. We have no economic interest in these financing arrangements and no direct relationship wit h the suppliers, the third parties , or any financial inst itutions concerning this service. All of our accounts payable remain as obligations to our suppliers as stated in our supplier agreements. As of May 28, 2017 , $639.0 million of our accounts payable is payable to suppliers who utilize these third party services .

DEBT

DEBT	12 Months Ended
	May 28, 2017
DEBT [Abstract]
DEBT	NOTE 8. DEBT Notes Payable The components of notes payable and their respective weighted-average interest rates at the end of the periods were as follows: May 28, 2017 May 29, 2016 In Millions Notes Payable Weighted- Average Interest Rate Notes Payable Weighted- Average Interest Rate U.S. commercial paper $ 954.7 1.1 % $ - - % Financial institutions 279.4 7.0 269.8 8.6 Total $ 1,234.1 2.4 % $ 269.8 8.6 % T o ensure availability of funds, we maintain bank credit lines sufficient to cover our outstanding notes payable . Commercial paper is a continuing source of short-term financing. We have commercial paper programs available to us in the United States and Europe. We also have uncommitted and asset-backed credit lines that support our foreign operations. The following table details the fee-paid committed and uncommitted credit lines we had available as of May 28, 2017 : In Billions Facility Amount Borrowed Amount Credit facility expiring: May 2022 $ 2.7 $ - June 2019 0.2 0.1 Total committed credit facilities 2.9 0.1 Uncommitted credit facilities 0.5 0.1 Total committed and uncommitted credit facilities $ 3.4 $ 0.2 In fiscal 2016, we entered into a $2.7 billion fee-paid committed credit facility that wa s scheduled to expire in May 2021. In fiscal 2017 , we amended the credit facility’s expiration date by one year to May 2022. The credit facilities contain covenants, including a requirement to maintain a fixed charge coverage ratio of at least 2.5 times. We were in compliance with all credit facility covenants as of May 28, 2017 . Long-Term Debt In March 2017, we issued €300.0 million principal amount of floating-rate notes due March 20, 2019. Interest on the notes is payable quarterly in arrears. The notes are not generally redeemable prior to maturity. These notes are senior unsecured obligations that include a change of control repurchase provision. The net proceeds were used to repay a portion of our outstanding commercial paper. In February 2017, we repaid $1.0 billion of 5.7 p ercent fixed-rate notes. In January 2017, we issued $750.0 million principal amount of 3.2 percent fixed-rate notes due February 10, 2027. Interest on the notes is payable semi-annually in arrears. We may redeem the notes in whole or in part at any time at the applicable redemption price. The notes are senior unsecured obligations that include a change of control repurchase provision. The net proceeds were used to repay a portion of our maturing long-term debt. In January 2016, we issued €500.0 million p rincipal amount of floating-rate notes due January 15, 2020. Interest on the notes are payable quarterly in arrears. The notes are not generally redeemable prior to maturity. These notes are senior unsecured obligations that include a change of control rep urchase provision. The net proceeds were used to repay a portion of our maturing long-term debt. In January 2016, we repaid $250 million of 0.875 percent fixed-rate notes and $750 million of floating-rate notes. In April 2015, we issued €500.0 million pr incipal amount of 1.0 percent fixed-rate notes due April 27, 2023 and €400.0 million principal amount of 1.5 percent fixed-rate notes due April 27, 2027. Interest on the notes is payable annually in arrears. The notes may be redeemed in whole or in part at our option at any time at the applicable redemption price. These notes are senior unsecured obligations that include a change of control repurchase provision. The net proceeds were used for general corporate purposes and to reduce our commercial paper b orrowings. In March 2015, we repaid $750.0 million of 5.2 percent fixed-rate notes. A summary of our long-term debt is as follows: In Millions May 28, 2017 May 29, 2016 5.65% notes due February 15, 2019 $ 1,150.0 $ 1,150.0 5.7% notes due February 15, 2017 - 1,000.0 3.15% notes due December 15, 2021 1,000.0 1,000.0 3.2% notes due February 10, 2027 750.0 - Euro-denominated 2.1% notes due November 16, 2020 559.2 555.8 Euro-denominated 1.0% notes due April 27, 2023 559.2 555.8 Euro-denominated floating-rate notes due January 15, 2020 559.2 555.8 1.4% notes due October 20, 2017 500.0 500.0 5.4% notes due June 15, 2040 500.0 500.0 4.15% notes due February 15, 2043 500.0 500.0 3.65% notes due February 15, 2024 500.0 500.0 2.2% notes due October 21, 2019 500.0 500.0 Euro-denominated 1.5% notes due April 27, 2027 447.3 444.6 Euro-denominated floating-rate notes due March 20, 2019 335.5 - Euro-denominated 2.2% notes due June 24, 2021 222.8 221.0 Medium-term notes, 0.02% to 6.59%, due fiscal 2018 or later 204.2 204.2 Other, including debt issuance costs and capital leases (39.8) (26.1) 8,247.6 8,161.1 Less amount due within one year (604.7) (1,103.4) Total long-term debt $ 7,642.9 $ 7,057.7 Principal payments due on long-term debt in the next five years based on stated contractual maturities, our intent to redeem, or put rights of certain note holders are $604.7 million in fiscal 2018 , $1,585 .9 million in fiscal 2019 , $1,062.5 million in fiscal 2020 , $559.4 million in fiscal 2021 , and $1,001.1 million in fiscal 2022 . Certain of our long-term debt agreements contain restrictive covenants. As of May 28, 2017 , we were in compliance with all of these covenants. As of May 28, 2017 , the $ 23.0 million pre-tax loss recorded in AOCI associated with our previously designated interest rate swaps will be reclassified to net interest over the remaining lives of the hedged transactions. The amount expected to be reclassified from AOCI to net interest in fiscal 2018 is a $ 6.7 million pre-tax loss .

REDEEMABLE AND NONCONTROLLING I

REDEEMABLE AND NONCONTROLLING INTERESTS	12 Months Ended
	May 28, 2017
REDEEMABLE AND NONCONTROLLING INTERESTS [Abstract]
REDEEMABLE AND NONCONTROLLING INTERESTS	NOTE 9. REDEEMABLE AND NONCONTROLLING INTERESTS Our principal redeemable and noncontrolling interests relate to our Yoplait SAS, Yoplait Marques SNC, Liberté Marques Sàrl, and General Mills Cereals, LLC (GMC) subsidiaries. In addition, we have four foreign subsidiaries that have noncontrolling interests totaling $ 8.5 million as of May 28, 2017 . We have a 51 percent controlling interest in Yoplait SAS and a 50 percent interest in Yoplait Marques SNC and Liberté Marques S àrl . Sodiaal holds the remaining interests in each of the entities. On the acquisition date, we recorded the $ 904.4 million fair value of Sodiaal’s 49 percent euro-denomi nated interest in Yoplait SAS as a redee mable interest on our Consolidated Balance S heets. Sodiaal has the ability to p ut all or a portion of its redeemable interest to us at fair value once per year , up to three times before December 2024 . We adjust the value of the redeemable interest through add itional paid-in capital on our Consolidated Balance S heets quarterly to the redeemable interest’s redemption value, which approximate s its fair value . Yoplait SAS pays dividends annually if it meets certain financial metrics set forth in its shareholders agreement. As of May 28, 2017 , the redemption value of the euro-denominated redee mable interest was $ 910.9 million. On the acquisition dates, we recorded t he $281.4 million fair value of Sodiaal’s 50 percent euro-denominated interest in Yoplait Marques SNC and 50 percent Canadian dollar-denominated interest in L iberté Marques S àrl as noncontrolling interests on our Consolidated Balance Sheets. Yoplait Marques SNC earns a royalty stream through a licensing agreement with Yoplait SAS for the rights to Yoplait and related trademarks. Liberté Marques S àrl earns a roy alty stream through licensing agreements with certain Yoplait group companies for the rights to Liberté and related trademarks. These entities pay dividends annually based on their available cash as of their fiscal year end. We paid dividends of $48.6 million in fiscal 2017, and $74.5 million in fiscal 2016, to Sodiaal under the terms of the Yoplait SAS and Yoplait Marqu es SNC shareholder agreements. A subsidiary of Yoplait SAS has entered into an exclusive milk supply agreement for its European operations with Sodiaal at market-determined prices through July 1, 2021. Net purchases totaled $ 186.4 million for fiscal 2017 and $321.0 million for f iscal 201 6 . The holder of the GMC Class A Interests receives quarterly preferred distributions from available net income based on the application of a floating preferred return rate to the holder’s capital account balance established in the most recent ma rk-to-market valuation ( currently $251.5 million ). On June 1, 2015, the floating preferred return rate on GMC’s Class A interests was reset to the su m of three-month LIBOR plus 125 basis points. The preferred return rate is adjusted every three years through a negotiated agreement with the Class A Interest holder or through a remarketing auction . For financial reporting purposes, the assets, liabilities, results of operations, an d cash flows of our non-wholly owned subsidiaries are included in our Consolidated Financial Statements. The third-party investor’s share of the net earnings of these subsidiaries is reflected in net earnings attributable to redeemable and noncontrolling i nterests in our Consolidated Statements of Earnings. Our noncontrolling interests contain restrictive covenants. As of May 28, 2017 , we were in compliance with all of these covenants.

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	12 Months Ended
	May 28, 2017
STOCKHOLDERS' EQUITY [Abstract]
STOCKHOLDERS' EQUITY	NOTE 10. STOCKHOLDERS’ EQUITY Cumulative preference stock of 5.0 million shares, without par value, is authorized but unissued. On May 6, 2014 , our Board of Directors authorized the repurchase of up to 100 million shares of our common stock. Purchases under the authorization can be made in the open market or in privately negotiated transactions, including the use of call options and other derivative instruments, Rule 10b5-1 trading plans, and accelerated repurchase programs. The authorization has no specified termination date. Share repurchases were as follows: Fiscal Year In Millions 2017 2016 2015 Shares of common stock 25.4 10.7 22.3 Aggregate purchase price $1,651.5 $606.7 $1,161.9 The following table provides details of total comprehensive income (loss) : Fiscal 2017 General Mills Noncontrolling Interests Redeemable Interest In Millions Pretax Tax Net Net Net Net earnings, including earnings attributable to redeemable and noncontrolling interests $ 1,657.5 $ 11.3 $ 32.3 Other comprehensive income (loss): Foreign currency translation $ 19.5 $ - 19.5 2.5 (15.7) Net actuarial income 307.3 (109.4) 197.9 - - Other fair value changes: Securities 1.3 (0.5) 0.8 - - Hedge derivatives 65.9 (16.1) 49.8 - 3.5 Reclassification to earnings: Hedge derivatives (a) (25.2) 2.4 (22.8) - (2.9) Amortization of losses and prior service costs (b) 197.2 (74.7) 122.5 - - Other comprehensive income (loss) 566.0 (198.3) 367.7 2.5 (15.1) Total comprehensive income $ 2,025.2 $ 13.8 $ 17.2 (a ) Gain reclassified from AOCI into earnings is reported in interest, net for interest rate swaps and in cost of sales and SG&A expenses for foreign exchange contracts. (b) Loss reclassified from AOCI into earnings is reported in SG&A expense s . Fiscal 2016 General Mills Noncontrolling Interests Redeemable Interest In Millions Pretax Tax Net Net Net Net earnings, including earnings attributable to redeemable and noncontrolling interests $ 1,697.4 $ 8.4 $ 31.0 Other comprehensive Income (loss): Foreign currency translation $ (107.6) $ - (107.6) 2.8 (3.9) Net actuarial loss (514.2) 188.3 (325.9) - - Other fair value changes: Securities 0.2 (0.1) 0.1 - - Hedge derivatives 16.5 (2.2) 14.3 - 1.7 Reclassification to earnings: Hedge derivatives (a) (13.5) 2.5 (11.0) - 1.5 Amortization of losses and prior service costs (b) 206.8 (78.2) 128.6 - - Other comprehensive income (loss) (411.8) 110.3 (301.5) 2.8 (0.7) Total comprehensive income $ 1,395.9 $ 11.2 $ 30.3 (a ) Gain reclassified from AOCI into earnings is reported in interest, net for interest rate swaps and in cost of sales and SG&A expenses for foreign exchange contracts. (b) Loss reclassified from AOCI into earnings is reported in SG&A expense s . Fiscal 2015 General Mills Noncontrolling Interests Redeemable Interest In Millions Pretax Tax Net Net Net Net earnings, including earnings attributable to redeemable and noncontrolling interests $ 1,221.3 $ 8.2 $ 29.9 Other comprehensive income (loss): Foreign currency translation $ (727.9) $ - (727.9) (78.2) (151.8) Net actuarial loss (561.1) 202.7 (358.4) - - Other fair value changes: Securities 1.3 (0.5) 0.8 - - Hedge derivatives 13.6 (4.8) 8.8 - (4.7) Reclassification to earnings: Hedge derivatives (a) 0.7 0.5 1.2 - 3.7 Amortization of losses and prior service costs (b) 170.2 (65.1) 105.1 - - Other comprehensive income (loss) (1,103.2) 132.8 (970.4) (78.2) (152.8) Total comprehensive income (loss) $ 250.9 $ (70.0) $ (122.9) (a ) Loss reclassified from AOCI into earnings is reported in interest, net for interest rate swaps and in cost of sales and SG&A expenses for foreign exchange contracts. (b) Loss reclassified from AOCI into earnings is reported in SG&A expense s . In fiscal 2017 , 2016 , and 2015 , e xcept for reclassifications to earnings, changes in other comprehensive income (loss) were primarily non-cash items. Accumulated other comprehensive loss balances, net of tax effects, were as follows: In Millions 2017 2016 Foreign currency translation adjustments $ (624.7) $ (644.2) Unrealized gain (loss) from: Securities 4.6 3.8 Hedge derivatives 1.5 (25.5) Pension, other postretirement, and postemployment benefits: Net actuarial loss (1,645.4) (1,958.2) Prior service credits 19.5 11.9 Accumulated other comprehensive loss $ (2,244.5) $ (2,612.2)

STOCK PLANS

STOCK PLANS	12 Months Ended
	May 28, 2017
STOCK PLANS [Abstract]
STOCK PLANS	NOTE 11 . STOCK PLANS We use broad-based stock plans to help ensure that management’s interests are aligned with those of our s hareholders . As of May 28, 2017 , a total of 20.3 million shares were available for grant in the form of stock options, restricted stock, restricted stock units, and shares of unrestricted stock under the 2011 Stock Compensation Plan (2011 Plan) and the 2016 Compensation Plan for Non-Employee Directors. The 2011 Plan a lso provides for the issuance of cash-settled share-based units, stock appreciation rights, and performance-based stock awards. Stock-based awards now outstanding include some granted under the 2005, 2006, 2007 and 2009 stock plans and the 2011 compensatio n plan for non-employee directors, under which no further awards may be granted. The stock plans provide for potential accelerated vesting of awards upon retirement, termination, or death of eligible employees and directors. Stock Options The estimated fair values of stock options granted and the assumptions used for the Black-Scholes option-pricing model were as follows: Fiscal Year 2017 2016 2015 Estimated fair values of stock options granted $8.80 $7.24 $7.22 Assumptions: Risk-free interest rate 1.7 % 2.4 % 2.6 % Expected term 8.5 years 8.5 years 8.5 years Expected volatility 17.8 % 17.6 % 17.5 % Dividend yield 2.9 % 3.2 % 3.1 % We estimate the fair value of each option on the grant date using a Black-Scholes option-pricing model, which requires us to make predictive assumptions regarding future stock price volatility, employee exercise behavior, dividend yield, and the forfeiture rate. We estimate our future stock price volatility using the historical volatility over the expected term of the option, excluding time periods of volatility we believe a marketplace participant would exclude in estimating our stock price volat ility. We also have considered, but did not use, implied volatility in our estimate, because trading activity in options on our stock, especially those with tenors of greater than 6 months, is insufficient to provide a reliable measure of expected volatili ty. Our expected term represents the period of time that options granted are expected to be outstanding based on historical data to estimate option exercises and employee terminations within the valuation model. Separate groups of employees have similar historical exercise behavior and therefore were aggregated into a single pool for valuation purposes. The weighted-average expected term for all employee groups is presented in the table above. The risk-free interest rate for periods during the expected te rm of the options is based on the U.S. Treasury zero-coupon yield curve in effect at the time of grant. Any corporate income tax benefit realized upon exercise or vesting of an award in excess of that previously recognized in earnings (referred to as a wi ndfall tax benefit) is presented in our Consolidated Statements of Cash Flows as a financing cash flow. Realized windfall tax benefits are credited to additional paid-in capital within our Consolidated Balance Sheets. Realized shortfall tax benefits (amou nts which are less than that previously recognized in earnings) are first offset against the cumulative balance of windfall tax benefits, if any, and then charged directly to income tax expense, potentially resulting in volatility in our consolidated effec tive income tax rate. We calculated a cumulative memo balance of windfall tax benefits for the purpose of accounting for future shortfall tax benefits. Options may be priced at 100 percent or more of the fair market value on the date of grant, and general ly vest four years after the date of grant. Options generally expire within 10 years and one month after the date of grant. Information on stock option activity follows: Options Exercisable (Thousands) Weighted-Average Exercise Price Per Share Options Outstanding (Thousands) Weighted-Average Exercise Price Per Share Balance as of May 25, 2014 29,452.8 28.37 44,169.0 32.10 Granted 2,253.1 53.70 Exercised (7,297.2) 26.68 Forfeited or expired (47.7) 43.73 Balance as of May 31, 2015 26,991.5 30.44 39,077.2 34.35 Granted 1,930.2 55.72 Exercised (8,471.0) 28.49 Forfeited or expired (134.8) 48.16 Balance as of May 29, 2016 22,385.1 $ 32.38 32,401.6 $ 37.09 Granted 2,446.0 66.52 Exercised (4,904.9) 30.76 Forfeited or expired (108.3) 57.52 Balance as of May 28, 2017 20,899.2 $ 33.83 29,834.4 $ 40.47 Stock-based compensation expense related to stock option awards was $ 18.0 million in fiscal 2017 , $14.8 million in fiscal 2016 , and $18.1 million in fiscal 2015 . Compensation expense related to stock-based payments recognized in our Consolidated Statements of Earnings includes amounts recognized in restructuring, impairment, and other exit costs for fiscal 2017 , 2016 and 2015. Net cash proceeds from the exercise of sto ck options less shares used for minimum withholding taxes and the intrinsic value of options exercised were as follows: Fiscal Year In Millions 2017 2016 2015 Net cash proceeds $ 112.6 $ 171.9 $ 163.7 Intrinsic value of options exercised $ 176.5 $ 268.4 $ 201.9 Restricted Stock, Restricted Stock Units, and Performance Share Units Stock and units settled in stock subject to a restricted period and a purchase price, if any (as determined by the Compensation Committee of the Board of Directors), may be granted to key employees under the 2011 Plan. Restricted stock and restricted stock units generally vest and become unrestricted four years after the date of grant. Performance share units are earned based on our future achievement of three-year goals for average org anic net sales growth and cumulative free cash flow. Performance share units are settled in common stock and are generally subject to a three year performance and vesting period. The sale or transfer of these awards is restricted during the vesting period. Participants holding restricted stock, but not restricted stock units or performance share units, are entitled to vote on matters submitted to holders of common stock for a vote. These awards accumulate dividends from the date of grant, but participants o nly receive payment if the awards vest. Information on restricted stock unit and performance share units activity follows: Equity Classified Liability Classified Share-Settled Units (Thousands) Weighted-Average Grant-Date Fair Value Share-Settled Units (Thousands) Weighted-Average Grant-Date Fair Value Non-vested as of May 29, 2016 5,100.4 $ 48.60 211.4 $ 48.37 Granted 1,418.7 67.02 43.6 66.75 Vested (1,710.3) 42.50 (119.8) 41.21 Forfeited, expired, or reclassified (317.6) 57.96 (11.9) 57.76 Non-vested as of May 28, 2017 4,491.2 $ 56.08 123.3 $ 56.93 Fiscal Year 2017 2016 2015 Number of units granted (thousands) 1,462.3 1,351.5 1,708.2 Weighted average price per unit $ 67.01 $ 56.00 $ 53.45 The total grant-date fair value of restricted stock unit awards that vested was $ 78.1 million in fiscal 2017 and $ 101.8 million in fiscal 2016 . As of May 28, 2017 , unrecognized compensation expense related to non-vested stock options, restricted stock units, and performance share units was $ 98.1 million. This expense will be recognized over 18 months, on average. Stock-based compensation expense related to restricted stock units and performance share units was $ 77.9 million for fiscal 2017 , $76.8 million for fiscal 2016 , and $96.6 million for fiscal 2015 . Compensation expense related to stock-based payments recognized in our Consolidated Statements of Earni ngs includes amounts recognized in restructuring, impairment, and othe r exit costs for fiscal 2017, 2016 and 2015 .

EARNINGS PER SHARE

EARNINGS PER SHARE	12 Months Ended
	May 28, 2017
EARNINGS PER SHARE [Abstract]
EARNINGS PER SHARE	NOTE 12 . EARNINGS PER SHARE Basic and diluted EPS were calculated using the following: Fiscal Year In Millions, Except per Share Data 2017 2016 2015 Net earnings attributable to General Mills $ 1,657.5 $ 1,697.4 $ 1,221.3 Average number of common shares - basic EPS 587.1 598.9 603.3 Incremental share effect from: (a) Stock options 8.1 9.8 11.3 Restricted stock units, performance share units, and other 2.8 3.2 4.2 Average number of common shares - diluted EPS 598.0 611.9 618.8 Earnings per share - basic $ 2.82 $ 2.83 $ 2.02 Earnings per share - diluted $ 2.77 $ 2.77 $ 1.97 (a) Increme ntal shares from stock options , restricted stock units , and performance share units are computed by the treasury stock method. Stock options , restricted stock units , and performance share units excluded from our computation of diluted EPS because they were not dilutive were as follows: Fiscal Year In Millions 2017 2016 2015 Anti-dilutive stock options, restricted stock units, and performance share units 2.3 1.1 2.1

RETIREMENT BENEFITS AND POSTEMP

RETIREMENT BENEFITS AND POSTEMPLOYMENT BENEFITS	12 Months Ended
	May 28, 2017
RETIREMENT BENEFITS AND POSTEMPLOYMENT BENEFITS [Abstract]
RETIREMENT BENEFITS AND POSTEMPLOYMENT BENEFITS	NOTE 13. RETIREMENT BENEFITS AND POSTEMPLOYMENT BENEFITS Defined Benefit Pension Plans We have defined benefit pension plans covering many employees in the United States, Canada, France, and the United Kingdom . Benefits for salaried employees are based on length of service and final average compensation. Benefits for hourly employees include various monthly amounts for each year of credited service. Our funding policy is consistent with the requirements of appl icable laws. We made no voluntary contributions to our principal U.S. plans in fiscal 2017 , 2016 , and 2015 . We do not expect to be required to make any contributions in fiscal 201 8 . Our principal domestic retirement plan covering salaried employe es has a provision that any excess pension assets would be allocated to active participants if the plan is terminated within five years of a change in control. All salaried employees hired on or after June 1, 2013 are eligible for a retirement program that does not include a defined benefit pension plan. In May 2017, we announced changes to the United States pension plans. The Company will freeze the pay and service amounts used to calculate pension benefits for active employees who participate in the Uni ted States pension plans as of December 31, 2027. Beginning January 1, 2028 , active employees in the United States will not accrue additional benefits for future service and eligible compensation received under these plans . These changes resulted in a $ 13 0.9 million decline in the projected benefit obligation as of May 28, 2017, due to the decrease in expected future compensation. Other Postretirement Benefit Plans We also sponsor plans that provide heal th care benefits to many of our retirees in the United States, Canada, and Brazil. The United States salaried health care benefit plan is contributory, with retiree contributions based on years of service. We make decisions to fund related trusts for certain employees and retirees on an annual basis. We made voluntary con tributions to these plans of $20 .0 million in in fiscal 2017 and $24.0 million in fiscal 2016 . Health Care Cost Trend Rates Assumed health care cost trends are as follows: Fiscal Year 2017 2016 Health care cost trend rate for next year 7.0% and 7.3% 7.3% and 7.5% Rate to which the cost trend rate is assumed to decline (ultimate rate) 5.0% 5.0% Year that the rate reaches the ultimate trend rate 2024 2024 We review our health care cost trend rates annually. Our review is based on data we collect about our health care claims experience and information provided by our actuaries. This information includes recent plan experience, plan design, overall industry experience and projections, and assumptions used by other similar organizations. Our initial health care cost trend rate is adjusted as necessary to remain consistent with this review, recent experiences, and short-term expectations. Our initial health car e cost trend rate assumption is 7.3 percent for retirees age 65 and over and 7.0 percent for retirees under age 65 at the end of fiscal 2017 . Rates are graded down annually until the ultimate trend rate of 5.0 percent is reached in 2024 for all retirees. The trend rates are applicable for calculations only if the retirees’ benefits increase as a result of health care inflation. The ultimate trend rate is adjusted annually, as necessary, to approximate the current economic view on the rate of long-term inflatio n plus an appropriate health care cost premium. Assumed trend rates for health care costs have an important effect on the amounts reported for the other postretirement benefit plans. A one percentage point change in the health care cost trend rate would h ave the following effects: In Millions One Percentage Point Increase One Percentage Point Decrease Effect on the aggregate of the service and interest cost components in fiscal 2018 $ 2.2 $ (1.9) Effect on the other postretirement accumulated benefit obligation as of May 28, 2017 59.5 (53.8) The Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010 (collectively , the Act ) was signed into law in March 2010. The Act codifies health care reforms with staggered effective dates from 2010 to 2018 . Estimates of the future impacts of several of the Act’s provisions are incorporated into our postretirement benefit liabilit y. Postemployment Benefit Plans Under certain circumstances, we also provide accruable benefits, primarily severance, to former or inactive employees in the United States, Canada, and Mexico. We recognize an obligation for any of these benefits that vest or accumulate with service. Postemployment benefits that do not vest or accumulate with service (such as severance based solely on annual pay rather than years of service) are charged to expense when incurred. Our postemployment benefit plans are unfunded. In the first quarter of fiscal 2017, we adopted new accounting requirements which permit reporting entities with a fiscal year-end that does not coincide with a month-end to apply a practical expedient to measure defined benefit plan assets and obligations using the month-end that is closest to the entity’s fiscal year-end and apply such practical expedient consistently to all plans. We measured the plan assets and obligations for our defined benefit pension , other postretirement benefit, and postemployment benefit plans as of May 31, 2017. Summarized financial information about defined benefit pension, other postretirement benefit, and postemployment benefit plans is presented below: Defined Benefit Pension Plans Other Postretirement Benefit Plans Postemployment Benefit Plans Fiscal Year Fiscal Year Fiscal Year In Millions 2017 2016 2017 2016 2017 2016 Change in Plan Assets: Fair value at beginning of year $ 5,539.9 $ 5,758.5 $ 602.4 $ 582.8 Actual return on assets 645.6 36.3 75.2 (0.1) Employer contributions 25.4 23.7 20.1 24.1 Plan participant contributions 8.8 5.7 15.2 14.1 Benefits payments (282.2) (277.5) (18.1) (18.5) Foreign currency (12.3) (6.8) - - Fair value at end of year $ 5,925.2 $ 5,539.9 $ 694.8 $ 602.4 Change in Projected Benefit Obligation: Benefit obligation at beginning of year $ 6,448.5 $ 6,252.1 $ 1,028.9 $ 1,079.6 $ 164.1 $ 146.6 Service cost 119.7 134.6 12.5 19.0 8.8 7.6 Interest cost 216.5 267.8 32.2 44.1 2.6 3.9 Plan amendment (130.9) 0.9 - - - 1.1 Curtailment/other 1.9 7.1 (0.3) 0.5 1.3 10.7 Plan participant contributions 8.8 5.7 15.2 14.1 - - Medicare Part D reimbursements - - 3.4 3.5 - - Actuarial loss (gain) 88.5 65.2 (77.6) (64.5) (7.4) 11.2 Benefits payments (282.6) (278.0) (63.3) (66.4) (34.7) (16.9) Foreign currency (11.8) (6.9) 0.4 (1.0) (0.2) (0.1) Projected benefit obligation at end of year $ 6,458.6 $ 6,448.5 $ 951.4 $ 1,028.9 $ 134.5 $ 164.1 Plan assets less than benefit obligation as of fiscal year end $ (533.4) $ (908.6) $ (256.6) $ (426.5) $ (134.5) $ (164.1) The accumulated benefit obligation for all defined benefit pension plans was $ 6,104.5 million as of May 28, 2017 , and $ 5,950.7 million as of May 29, 2016 . Amounts recognized in AOCI as of May 28, 2017 and May 29, 2016 , are as follows: Defined Benefit Pension Plans Other Postretirement Benefit Plans Postemployment Benefit Plans Total Fiscal Year Fiscal Year Fiscal Year Fiscal Year In Millions 2017 2016 2017 2016 2017 2016 2017 2016 Net actuarial loss $ (1,621.4) $ (1,886.0) $ (14.5) $ (57.6) $ (9.5) $ (14.6) $ (1,645.4) $ (1,958.2) Prior service (costs) credits (3.9) (6.8) 22.8 19.9 0.6 (1.2) 19.5 11.9 Amounts recorded in accumulated other comprehensive loss $ (1,625.3) $ (1,892.8) $ 8.3 $ (37.7) $ (8.9) $ (15.8) $ (1,625.9) $ (1,946.3) Plans with accumulated benefit obligations in excess of plan assets are as follows: Defined Benefit Pension Plans Other Postretirement Benefit Plans Postemployment Benefit Plans Fiscal Year Fiscal Year Fiscal Year In Millions 2017 2016 2017 2016 2017 2016 Projected benefit obligation $ 610.1 $ 5,490.3 $ 5.5 $ - $ 4.4 $ 4.8 Accumulated benefit obligation 542.3 4,998.3 947.9 1,024.7 130.1 159.3 Plan assets at fair value 51.9 4,498.5 694.8 602.4 - - Components of net periodic benefit expense are as follows: Defined Benefit Pension Plans Other Postretirement Benefit Plans Postemployment Benefit Plans Fiscal Year Fiscal Year Fiscal Year In Millions 2017 2016 2015 2017 2016 2015 2017 2016 2015 Service cost $ 119.7 $ 134.6 $ 137.0 $ 12.5 $ 19.0 $ 22.4 $ 8.8 $ 7.6 $ 7.5 Interest cost 216.5 267.8 249.2 32.2 44.1 46.9 2.6 3.9 4.3 Expected return on plan assets (486.7) (496.9) (476.4) (48.5) (46.2) (40.2) - - - Amortization of losses 190.2 189.8 141.7 2.5 6.6 4.9 1.7 0.7 0.7 Amortization of prior service costs (credits) 2.5 4.7 7.4 (5.4) (5.4) (1.6) 0.6 2.5 2.4 Other adjustments 3.1 5.0 15.1 1.3 2.3 3.3 1.3 10.7 9.5 Settlement or curtailment losses 3.8 13.1 18.0 (0.9) (1.0) 1.3 (1.4) - - Net expense $ 49.1 $ 118.1 $ 92.0 $ (6.3) $ 19.4 $ 37.0 $ 13.6 $ 25.4 $ 24.4 We expect to recognize the following amounts in net periodic benefit expense in fiscal 2018 : In Millions Defined Benefit Pension Plans Other Postretirement Benefit Plans Postemployment Benefit Plans Amortization of losses $176.9 $0.8 $0.6 Amortization of prior service costs (credits) 1.9 (5.4) 0.8 Assumptions Weighted-average assumptions used to determine fiscal year-end benefit obligations are as follows: Defined Benefit Pension Plans Other Postretirement Benefit Plans Postemployment Benefit Plans Fiscal Year Fiscal Year Fiscal Year 2017 2016 2017 2016 2017 2016 Discount rate 4.08 % 4.19 % 3.92 % 3.97 % 2.87 % 2.94 % Rate of salary increases 4.25 4.28 - - 4.46 4.35 Weighted-average assumptions used to determine fiscal year net periodic benefit expense are as follows: Defined Benefit Pension Plans Other Postretirement Benefit Plans Postemployment Benefit Plans Fiscal Year Fiscal Year Fiscal Year 2017 (a) 2016 2015 2017 (a) 2016 2015 2017 (a) 2016 2015 Discount rate 4.19 % 4.38 % 4.54 % 3.97 % 4.20 % 4.51 % 2.94 % 3.55 % 3.82 % Service cost effective rate 4.57 - - 4.42 - - 3.55 - - Interest cost effective rate 3.44 - - 3.17 - - 2.67 - - Rate of salary increases 4.28 4.31 4.44 - - - 4.35 4.36 4.44 Expected long-term rate of return on plan assets 8.17 8.53 8.53 7.85 8.14 8.13 - - - (a) Beginning in fiscal 2017, we adopted the full yield curve method. Discount Rates Beginning in fiscal 2017, we changed the method used to estimate the service and interest cost components of the net periodic benefit expense for our United States and most of our international defined benefit pension, other postretirement benefit, and postemployment benefit plans. We adopted a full yield curve approach to estimate service cost and interest cost by applying the specific spot rates along the yield curve used to determine the benefit obligation to the relevant projected cash f lows. This method provides a more precise measurement of service and interest costs by correlating the timing of the plans’ liability cash flows to the corresponding rate on the yield curve. Previously, we estimated service cost and interest cost using a s ingle weighted-average discount rate derived from the yield curve used to measure the benefit obligation at the beginning of the period. This change does not affect the measurement of our benefit obligations related to these plans. We have accounted for th is change prospectively as a change in accounting estimate beginning in the first quarter of fiscal 2017. The change in methodology resulted in a decrease in service and interest cost of approximately $68 million for fiscal 2017 compared to our previous me thodology. The fiscal 2017 reduction in our net periodic benefit expense as a result of this change in methodology was partially offset by a reduction in our weighted-average expected rate of return on plan assets for our principal defined benefit pension and other postretirement plans in the United States to 8.25 percent as a result of asset changes that decreased investment risk in the portfolio. Beginning in fiscal 2017, our discount rate assumptions are determined annually as of May 31 for our defined benefit pension, other postretirement benefit, and postemployment benefit plan obligations. We also use discount rates as of May 31 to determine defined benefit pension, other postretirement benefit, and postemployment benefit plan income and expense for t he following fiscal year. We work with our outside actuaries to determine the timing and amount of expected future cash outflows to plan participants and, using the Aa Above Median corporate bond yield, to develop a forward interest rate curve, including a margin to that index based on our credit risk. This forward interest rate curve is applied to our expected future cash outflows to determine our discount rate assumptions. Fair Value of Plan Assets The fair values of our pension and postretirement benefit plans’ assets and their respective levels in the fair value hierarchy at May 28, 2017 , and May 29, 2016 , by asset category were as follows: May 28, 2017 May 29, 2016 In Millions Level 1 Level 2 Level 3 Total Assets Level 1 Level 2 Level 3 Total Assets Fair value measurement of pension plan assets: Equity (a) $ 1,773.0 $ 781.2 $ - $ 2,554.2 $ 1,543.7 $ 741.9 $ - $ 2,285.6 Fixed income (b) 951.9 742.2 - 1,694.1 903.8 745.8 - 1,649.6 Real asset investments (c) 253.1 95.8 - 348.9 193.6 95.2 - 288.8 Other investments (d) - - 0.3 0.3 - - 0.4 0.4 Cash and accruals 174.2 - - 174.2 195.1 - - 195.1 Fair value measurement of pension plan assets in the fair value hierarchy $ 3,152.2 $ 1,619.2 $ 0.3 $ 4,771.7 $ 2,836.2 $ 1,582.9 $ 0.4 $ 4,419.5 Investments measured at net asset value (e) 1,153.5 1,120.4 Total pension plan investments $ 5,925.2 $ 5,539.9 Fair value measurement of postretirement benefit plan assets: Equity (a) $ 122.3 $ 67.5 $ - $ 189.8 $ 128.9 $ 87.6 $ - $ 216.5 Fixed income (b) 34.1 160.0 - 194.1 18.0 83.4 - 101.4 Real asset investments (c) 18.0 14.5 - 32.5 - 14.3 - 14.3 Other investments (d) - - - - - - - - Cash and accruals 11.3 - - 11.3 8.9 - - 8.9 Fair value measurement of postretirement benefit plan assets in the fair value hierarchy $ 185.7 $ 242.0 $ - $ 427.7 $ 155.8 $ 185.3 $ - $ 341.1 Investments measured at net asset value (e) 267.1 261.3 Total postretirement benefit plan investments $ 694.8 $ 602.4 (a) Primarily publicly traded common stock for purposes of total return and to maintain equity exposure consistent with policy allocations. Investments include: United States and international equity securities, mutual funds, and equity futures valued at closing prices from national exchanges, and commingled funds valued at unit values provided by the investment managers, which are based on the fair value of the underlying investments. (b) Primarily government and corporate debt securities and futures for purposes of total return, managing fixed income exposure to policy allocations, and managing duration targets. Investments include: fixed income securities an d bond futures generally valued at closing prices from national exchanges, fixed income pricing models, and independent financial analysts; and fixed income commingled funds valued at unit values provided by the investment managers, which are based on the fair value of the underlying investments. (c) Publicly traded common stock and limited partnerships in the energy and real estate sectors for purposes of total return. Investments include: energy and real estate securities generally valued at closing pri ces from national exchanges, and commingled funds valued at unit values provided by the investment managers, which are based on the fair value of the underlying investments. (d) Global balanced fund of equity, fixed income, and real estate securities fo r purposes of meeting Canadian pension plan asset allocation policies, and insurance and annuity contracts to provide a stable stream of income for retirees and to fund postretirement medical benefits. Fair values are derived from unit values provided by t he investment managers, which are generally based on the fair value of the underlying investments and contract fair values from the providers. (e) Primarily private investments and common collective trusts that are measured at fair value using the net asse t value per share (or its equivalent) practical expedient and have not been classified in the fair value hierarchy. There were no material changes in our level 3 investments in fiscal 2017 and fiscal 2016. Expected Rate of Return on Plan Assets Our expected rate of return on plan assets is determined by our asset allocation, our historical long-term investment performance, our estimate of future long-term returns by asset class (using input from our actuaries, investment services, and investment managers), and long-term inflation assumptions. We review this assumption annually for each plan; however, our annual investment performance for one particular year does not, by itself, significantly influence our evaluation. Weighted-average asset allocations for the past two fiscal years for our defined benefit pension and other postretirement benefit plans are as follows: Defined Benefit Pension Plans Other Postretirement Benefit Plans Fiscal Year Fiscal Year 2017 2016 2017 2016 Asset category: United States equities 28.5 % 30.5 % 31.9 % 37.2 % International equities 17.9 19.0 17.8 23.4 Private equities 7.8 8.3 3.6 3.9 Fixed income 31.7 28.6 40.0 29.4 Real assets 14.1 13.6 6.7 6.1 Total 100.0 % 100.0 % 100.0 % 100.0 % The investment objective for our defined benefit pension and other postretirement benefit plans is to secure the benefit obligations to participants at a reasonable cost to us. Our goal is to optimize the long-term return on plan assets at a moderate level of risk. The defined benefit pension plan and other postretirement benefit plan portfolios are broadly diversified across asset classes. Within asset classes, the portfolios are further diversified across investment styles and investment organization s. For the defined benefit pension plans, the long-term investment policy allocation is: 2 0 percent to equities in the United States; 15 percent to international equities; 10 percent to private equities; 40 percent to fixed income; and 15 percent to real a ssets (real estate, energy, and timber). For other postretirement benefit plans, the long-term investment policy allocations are: 30 percent to equities in the United States; 15 percent to international equities; 10 percent to private equities; 40 percent to fixed income; and 5 percent to real assets (real estate, energy, and timber). The actual allocations to these asset classes may vary tactically around the long-term policy allocations based on relative market valuations . Contributions and Future Benefit Payments We do not expect to be required to make contributions to our defined benefit pension, other postretirement benefit, and postemployment benefit plans in fiscal 2018 . Actual fiscal 2018 contributions could exceed our current projections, as influenced by our decision to undertake discretionary funding of our benefit trusts and future changes in regulatory requirements. Estimated benefit payments, which reflect expected future service, as appropriate, are expe cted to be paid from fiscal 2018 to 2027 as follows: In Millions Defined Benefit Pension Plans Other Postretirement Benefit Plans Gross Payments Medicare Subsidy Receipts Postemployment Benefit Plans 2018 $ 290.2 $ 59.5 $ 4.3 $ 21.2 2019 298.6 61.6 4.6 19.0 2020 307.7 63.0 4.2 17.4 2021 316.4 64.1 3.5 16.1 2022 325.7 64.8 3.6 15.0 2023-2027 1,767.8 328.8 18.8 61.5 Defined Contribution Plans The General Mills Savings Plan is a defined contribution plan that covers domestic salaried , hourly, nonunion, and certain union employees. This plan is a 401(k) savings plan that includes a number of investment funds, including a Company stock fund and an Employee Stock Ownership Plan (ESOP). We sponsor another money purchase plan for certain domestic hourly employees with net assets of $ 23.0 million as of May 28, 2017 , and $21.0 million as of May 29, 2016 . We also sponsor defined contribution plans in many of our foreign locations. Our total recognized expense related to defined contribution plans was $ 54.1 million in fiscal 2017 , $61.2 million in fiscal 2016 , and $44.0 million in fiscal 2015 . We match a percentage of employee contributions to the General Mills Savings Plan. The Company match is directed to investment options of the participant’s choosing. The number of shares of our common stock allocated to participants in the ESOP was 6.3 million as of May 28, 2017 , and 6.9 million as of May 29, 2016 . The ESOP’s only assets are our common stock and temporary cash balances. The Company stock fund an d the ESOP collectively held $ 598.7 million and $711.5 million of Company common stock as of May 28, 2017 and May 29, 2016 , respectively.

INCOME TAXES

INCOME TAXES	12 Months Ended
	May 28, 2017
INCOME TAXES [Abstract]
INCOME TAXES	NOTE 14 . INCOME TAXES The components of earnings before income taxes and after-tax earnings from joint ventures and the corresponding income taxes thereon are as follows: Fiscal Year In Millions 2017 2016 2015 Earnings before income taxes and after-tax earnings from joint ventures: United States $ 1,941.6 $ 1,941.4 $ 1,338.6 Foreign 329.7 462.2 423.3 Total earnings before income taxes and after-tax earnings from joint ventures $ 2,271.3 $ 2,403.6 $ 1,761.9 Income taxes: Currently payable: Federal $ 368.5 $ 489.8 $ 392.7 State and local 21.1 30.8 29.3 Foreign 81.7 114.0 139.5 Total current 471.3 634.6 561.5 Deferred: Federal 201.3 123.0 70.3 State and local 10.2 (6.9) (8.7) Foreign (27.6) 4.5 (36.3) Total deferred 183.9 120.6 25.3 Total income taxes $ 655.2 $ 755.2 $ 586.8 The following table reconciles the United States statutory income tax rate with our effective income tax rate: Fiscal Year 2017 2016 2015 United States statutory rate 35.0 % 35.0 % 35.0 % State and local income taxes, net of federal tax benefits 0.8 0.7 0.7 Foreign rate differences (3.5) (2.2) (3.1) Repatriation of foreign earnings - - 4.5 Non-deductible goodwill - 2.6 - Domestic manufacturing deduction (2.8) (2.0) (2.9) Other, net (a) (0.7) (2.7) (0.9) Effective income tax rate 28.8 % 31.4 % 33.3 % (a ) Fiscal 2016 includes 0.6 percent tax benefit related to the divestiture of our business in Venezuela. See Note 3 for additional information. The tax effects of temporary differences that give rise to deferred tax assets and liabilities are as follows: In Millions May 28, 2017 May 29, 2016 Accrued liabilities $ 70.0 $ 89.9 Compensation and employee benefits 419.2 491.5 Pension 196.3 322.0 Tax credit carryforwards 18.4 4.5 Stock, partnership, and miscellaneous investments 276.4 353.6 Capital losses 29.8 14.5 Net operating losses 109.5 97.9 Other 85.6 84.1 Gross deferred tax assets 1,205.2 1,458.0 Valuation allowance 231.8 227.0 Net deferred tax assets 973.4 1,231.0 Brands 1,310.1 1,311.7 Fixed assets 484.5 476.3 Intangible assets 238.6 221.8 Tax lease transactions 45.8 48.0 Inventories 60.0 53.0 Stock, partnership, and miscellaneous investments 479.4 476.0 Unrealized hedges 45.4 22.6 Other 29.0 21.2 Gross deferred tax liabilities 2,692.8 2,630.6 Net deferred tax liability $ 1,719.4 $ 1,399.6 We have established a valuation allowance against certain of the categories of deferred tax assets described above as current evidence does not suggest we will realize sufficient taxable income of the appropriate character (e.g., ordinary income versus capital gain income) within the carryforward period to allow us to realize these deferred tax benefits. Of t he total valuation allowance of $ 231.8 million , the majority relates to a deferred tax asset for losses recorded as part of the Pillsbury acquisition in the am ount of $167.2 million, $53.3 million relates to various state and foreign loss carryforwards, and $11.1 million relates to various foreign capital loss carryforwards . As of May 28, 2017 , we believe it is more-likely-than -not that the remainder of our deferred tax assets are realizable. We have $142.1 million of tax loss carryforwards. Of this amount, $125.3 million is foreign loss carryforwards. The carryforward periods are as follows: $93.2 million do not expire; $3. 7 million expire in fiscal 2018 and 2019; and $28.4 million expire in fiscal 2020 and beyond. The remaining $16.8 million are state operating loss carryforward s, the majority of which expire after fiscal 2023 . We have not recognized a deferred tax liabil ity for unremitted earnings of approximately $2.3 billion from our foreign operations because our subsidiaries have invested or will invest the undistributed ear nings indefinitely, or the earnings will be remitted in a tax-neutral transaction. It is not pr acticable for us to determine the amount of unrecognized deferred tax liabilities on these indefinitely reinvested earnings. Deferred taxes are recorded for earnings of our foreign operations when we determine that such earnings are no longer indefinitely reinvested. In fiscal 2015, we approved a one-time repatriation of $606.1 million of historical foreign earnings to reduce the economic cost of funding restructuring initiatives and the acquisition of Annie’s. We recorded a discrete tax charge of $78.6 mil lion in fiscal 2015 related to this action. We have previously asserted that our historical foreign earnings are permanently reinvested and will only be repatriated in a tax-neutral manner, and this one-time repatriation does not change this on-going asser tion. We are subject to federal income taxes in the United States as well as various state, local, and foreign jurisdictions. A number of years may elapse before an uncertain tax position is audited and finally resolved. While it is often difficult to predict the final outcome or the timing of resolution of any particular uncertain tax position, we believe that our liabilities for income taxes reflect the most likely outcome. We adjust these liabilities, as well as the related interest, in light of changing fac ts and circumstances. Settlement of any particular position would usually require the use of cash. The number of years with open tax audits varies depending on the tax jurisdiction. Our major taxing jurisdictions include the United States (federal and sta te) and Canada. Various tax examinations by United States state taxing authorities could be conducted for any open tax year, which vary by jurisdiction, but are generally from 3 to 5 years. Several state and foreign examinations are currently in progr ess. We do not expect these examinations to result in a material impact on our results of operations or financial position. During fiscal 2017, the I nternal R evenue S ervice (IRS) concluded its field examination of our federal tax returns for fiscal 2013 and 2014. The audit closure and related adjustments did not have a material impact on our results of operations or financial position. As of May 28, 2017 , we have effectively settled all issues with the IRS for fiscal years 201 4 and prior. During fiscal 2017, the Brazilian tax authority, Secretaria da Receita Federal do Brasil (RFB), concluded audits of our 2012 and 2013 tax return years. These audits included a review of our determinations of amortization of certain goodwill arising from the acquisition of Yoki Alimentos S.A. (Yoki). The RFB has proposed adjustments that effec tively eliminate the goodwill amortization benefits related to this transaction. We believe we have meritorious defenses and intend to contest the disallowance. We apply a more-likely-than-not threshold to the recognition and derecognition of uncertain ta x positions. Accordingly, we recognize the amount of tax benefit that has a greater than 50 percent likelihood of being ultimately realized upon settlement. Future changes in judgment related to the expected ultimate resolution of uncertain tax positions w ill affect earnings in the period of such change. The following table sets forth changes in our total gross unrecognized tax benefit liabilities, excluding accrued interest, for fiscal 2017 and fiscal 2016 . Approximately $62 million of this total i n fiscal 2017 represents the amount that, if recognized, would affect our effective income tax rate in future periods. This amount differs from the gross unrecognized tax benefits presented in the table because certain of the liabilities below would imp act deferred taxes if recognized. We also would record a decrease in U.S. federal income taxes upon recognition of the state tax benefits included therein. Fiscal Year In Millions 2017 2016 Balance, beginning of year $ 176.5 $ 161.1 Tax positions related to current year: Additions 27.2 31.6 Tax positions related to prior years: Additions 0.9 23.9 Reductions (47.9) (25.7) Settlements (9.6) (4.0) Lapses in statutes of limitations (11.6) (10.4) Balance, end of year $ 135.5 $ 176.5 As of May 28, 2017 , we expect to pay approximately $1.8 million of unrecognized tax benefit liabilities and accrued interest within the next 12 months. We are not able to reasonably estimate the timing of future cash flows beyond 12 months due to uncertainties in the timing of tax audit outcomes. The remaining amount of our unrecognized tax liability was classified in other liabilities. We report accrued interest and penalties related to unrecognized tax benefit liabilities in income tax expense. For fiscal 2017 , we recognized a net benefit of $5.6 million of tax-related net int erest and penalties, and had $23.1 million of accrued interest and penalties as of May 28, 2017 . For fiscal 2016 , we recognized a net benefit of $ 2.7 million of tax-related net interest and penalties, and had $ 32.1 million of accrued interest and penalties as of May 29, 2016 .

LEASES, OTHER COMMITMENTS, AND

LEASES, OTHER COMMITMENTS, AND CONTINGENCIES	12 Months Ended
	May 28, 2017
LEASES, OTHER COMMITMENTS, AND CONTINGENCIES [Abstract]
LEASES, OTHER COMMITMENTS, AND CONTINGENCIES	NOTE 15. LEASES, OTHER COMMITMENTS, AND CONTINGENCIES The Company’s leases are generally for warehouse space and equipment. Rent expense under all operating leases from continuing operations was $ 188.1 million in fiscal 2017 , $189.1 million in fiscal 2016 , and $ 193.5 million in fiscal 2015 . Some operating leases require payment of property taxes, insurance, and maintenance costs in addition to the rent payments. Contingent and escalation rent in excess of minimum rent payments and sublease income netted in rent expense were insignificant. No ncancelable future lease commitments are: In Millions Operating Leases Capital Leases Fiscal 2018 $ 118.8 $ 0.4 Fiscal 2019 101.7 0.4 Fiscal 2020 80.7 0.2 Fiscal 2021 60.7 0.1 Fiscal 2022 49.7 - After fiscal 2022 89.1 0.1 Total noncancelable future lease commitments $ 500.7 $ 1.2 Less: interest (0.1) Present value of obligations under capital leases $ 1.1 Depreciation on capital leases is recorded as depreciation expense in our results of operations. As of May 28, 2017 , we have issued guarantees and comfort letters of $504.7 million for the debt and other obligations of consolidated subsidiaries, and guarante es and comfort letters of $165.3 million for the debt and other obligations of non-consolidated affiliates, mainly CPW. In addition, off-balance sheet arrangements are generally limited to the future payments under non-cancelable operating leases, which to taled $500 .7 million as of May 28, 2017 .

BUSINESS SEGMENT AND GEOGRAPHIC

BUSINESS SEGMENT AND GEOGRAPHIC INFORMATION	12 Months Ended
	May 28, 2017
BUSINESS SEGMENT AND GEOGRAPHIC INFORMATION [Abstract]
BUSINESS SEGMENT AND GEOGRAPHIC INFORMATION	NOTE 16. BUSINESS SEGMENT AND GEOGRAPHIC INFORMATION We operate in the consumer foods industry. In the third quarter of fiscal 2017, we announced a new global organization structure to streamline our leadership, enhance global scale, and drive improved operational agility to maximize our growth capabilities. As a result of this global reorganization, beginning in the third quarter of fiscal 2017, we reported results for our four operating segments as follows: North America Retail, 65.3 percent o f our fiscal 2017 consolidated net sales ; Convenience Stores & Foodservice, 12.0 percent of our fiscal 2017 consolidated net sales; Europe & Australia, 11.7 percent of our fiscal 2017 consolidated net sales ; and Asia & Latin America, 11.0 percent of our fiscal 2017 co nsolidated net sales . We have restated our net sales by segment and segment operating profit amounts to reflect our new operating segments. These segment changes had no effect on previously reported consolidated net sales, operating profit, net earnings at tributable to General Mills, or earnings per share. Our North America Retail operating segment consists of our former U.S. Retail operating units and our Canada region. Within our North America Retail operating segment, our former U.S. Meals operating uni t and U.S. Baking operating unit have been combined into one operating unit: U.S. Meals & Baking. Our Convenience Stores & Foodservice operating segment i s unchanged. Our Europe & Australia operating segment consists of our former Europe region. Our Asia & Latin America operating segment consists of our former Asia/Pacific and Latin America regions. Under our new organization structure, our chief operating decision maker assesses performance and makes decisions about resources to be allocated to our segme nts at the North America Retail, Convenience Stores & Foodservice, Europe & Australia, and Asia & Latin America operating segment level. Our North America Retail operating segment reflects business with a wide variety of grocery stores, mass merchandisers, membership stores, natural food chains, drug, dollar and discount chains, and e-commerce grocery providers. Our product categories in this business segment are ready-to-eat cereals, refrigerated yogurt, soup, meal kits, refrigerated and frozen dough products, dessert and baking mixes, frozen pizza and pizza snacks, grain, fruit and savory snacks, and a wide variety of organic products including refrigerated yogurt, nutrition bars, meal kits, salty snacks, ready-to-eat ce real, and grain snacks. In our Convenience Stores & Foodservice segment our major product categories are ready-to-eat cereals, snacks, refrigerated yogurt, frozen meals, unbaked and fully baked frozen dough products, and baking mixes. Many products we sell are branded to the consumer and nearly all are branded to our customers. We sell to distributors and operators in many customer channels including foodservice, convenience stores, vending, and supermarket bakeries in the United States. Our Europe & Australia operating segment consists of our former Europe region. The segment include s retail and foodservice bu sinesses in the greater Europe and Australia regions. Our product categories include refrigerated yogurt, meal kits, super-premium ice cream, refrigerated and frozen dough products, shelf stable vegetables, grain snacks, and dessert and baking mixes. We also sell super-premium ice cream di rectly to consumers through company- owned retail shops. Revenues from franchise fees are reported in the region or country where the franchisee is located. Our Asia & Latin America op erating segment consists of our former Asia/Pacific and Latin America regions . The segment includes retail and foodservice businesses in the greater Asia and South America regions. Our product categories include super-premium ice cream and frozen desserts, refrigerated and frozen dough products, dessert and baking mixes, meal kits, salty and grain snacks, wellness beverages, and refrigerated yogurt. We also sell super-premium ice cream and frozen desserts directly to consumers through company- owned retail shops. Our Asia & Latin America segment also includes products manufactured in the United States for export, mainly to Caribbean and Latin American markets, as well as products we manufacture for sale to our international joint ventures. Revenues from export activities and franchise fees are reported in the region or country where the end customer or franchisee is located. Operating profit for these segments excludes unallocated corporate items, gain on divestitures, and restructuring, impairment, and other exit costs. Unallocated corporate items include corporate overhead expenses, variances to planned domestic employee ben efits and incentives, contributions to the General Mills Foundation, asset and liability remeasurement impact of hyperinflationary economies, restructuring initiative project-related costs, and other items that are not part of our measurement of segment op erating performance. These include gains and losses arising from the revaluation of certain grain inventories and gains and losses from mark-to-market valuation of certain commodity positions until passed back to our operating segments. These items affecti ng operating profit are centrally managed at the corporate level and are excluded from the measure of segment profitability reviewed by executive management. Under our supply chain organization, our manufacturing, warehouse, and distribution activities are substantially integrated across our operations in order to maximize efficiency and productivity. As a result, fixed assets and depreciation and amortization expenses are neither maintained nor available by operating segment. Our operating segment results were as follows: Fiscal Year In Millions 2017 2016 2015 Net sales: North America Retail $ 10,196.9 $ 10,936.6 $ 11,612.1 Convenience Stores & Foodservice 1,870.0 1,923.8 1,995.1 Europe & Australia 1,824.5 1,998.0 2,126.5 Asia & Latin America 1,728.4 1,704.7 1,896.6 Total $ 15,619.8 $ 16,563.1 $ 17,630.3 Operating profit: North America Retail $ 2,303.6 $ 2,351.2 $ 2,382.7 Convenience Stores & Foodservice 401.2 378.9 353.1 Europe & Australia 164.2 200.3 179.4 Asia & Latin America 83.6 69.1 119.8 Total segment operating profit 2,952.6 2,999.5 3,035.0 Unallocated corporate items 190.1 288.9 413.8 Divestitures loss (gain) 13.5 (148.2) - Restructuring, impairment, and other exit costs 182.6 151.4 543.9 Operating profit $ 2,566.4 $ 2,707.4 $ 2,077.3 Net sales by class of similar products were as follows : Fiscal Year In Millions 2017 2016 2015 Snacks $ 3,302.2 $ 3,297.2 $ 3,392.0 Cereal 2,673.2 2,731.5 2,771.3 Convenient meals 2,653.6 2,779.0 2,810.3 Yogurt 2,403.5 2,760.9 2,938.3 Dough 1,690.6 1,820.0 1,877.0 Baking mixes and ingredients 1,654.1 1,704.3 1,867.7 Super-premium ice cream 738.4 731.2 769.5 Vegetables 310.5 532.3 937.3 Other 193.7 206.7 266.9 Total $ 15,619.8 $ 16,563.1 $ 17,630.3 The following table provides financial information by geographic area: Fiscal Year In Millions 2017 2016 2015 Net sales: United States $ 11,160.9 $ 11,930.9 $ 12,501.8 Non-United States 4,458.9 4,632.2 5,128.5 Total $ 15,619.8 $ 16,563.1 $ 17,630.3 In Millions May 28, 2017 May 29, 2016 Cash and cash equivalents: United States $ 62.9 $ 118.5 Non-United States 703.2 645.2 Total $ 766.1 $ 763.7 In Millions May 28, 2017 May 29, 2016 Land, buildings, and equipment: United States $ 2,704.0 $ 2,755.1 Non-United States 983.7 988.5 Total $ 3,687.7 $ 3,743.6

SUPPLEMENTAL INFORMATION

SUPPLEMENTAL INFORMATION	12 Months Ended
	May 28, 2017
SUPPLEMENTAL INFORMATION [Abstract]
SUPPLEMENTAL INFORMATION	NOTE 17 . SUPPLEMENTAL INFORMATION The components of certain Consolidated Balance Sheet accounts are as follows: In Millions May 28, 2017 May 29, 2016 Receivables: Customers $ 1,454.4 $ 1,390.4 Less allowance for doubtful accounts (24.3) (29.6) Total $ 1,430.1 $ 1,360.8 In Millions May 28, 2017 May 29, 2016 Inventories: Raw materials and packaging $ 395.4 $ 397.3 Finished goods 1,224.3 1,163.1 Grain 73.0 72.6 Excess of FIFO over LIFO cost (a) (209.1) (219.3) Total $ 1,483.6 $ 1,413.7 (a) Inventories of $893.8 million as of May 28, 2017 , and $841.0 million as of May 29, 2016 , were valued at LIFO. The difference between replacement cost and the stated LIFO inventory value is not materially different from the reserve for the LIFO valuation meth od. In Millions May 28, 2017 May 29, 2016 Prepaid expenses and other current assets: Other receivables $ 163.7 $ 159.3 Prepaid expenses 168.9 177.9 Derivative receivables, primarily commodity-related 35.0 44.6 Grain contracts 2.7 1.8 Miscellaneous 11.3 15.4 Total $ 381.6 $ 399.0 In Millions May 28, 2017 May 29, 2016 Land, buildings, and equipment: Land $ 79.8 $ 92.9 Buildings 2,249.2 2,236.0 Buildings under capital lease 0.3 0.3 Equipment 6,095.9 5,945.6 Equipment under capital lease 3.0 3.0 Capitalized software 545.4 523.0 Construction in progress 553.0 702.7 Total land, buildings, and equipment 9,526.6 9,503.5 Less accumulated depreciation (5,838.9) (5,759.9) Total $ 3,687.7 $ 3,743.6 In Millions May 28, 2017 May 29, 2016 Other assets: Investments in and advances to joint ventures $ 505.3 $ 518.9 Pension assets 144.9 90.9 Exchangeable note with related party - 12.7 Life insurance 25.6 26.3 Miscellaneous 110.1 102.9 Total $ 785.9 $ 751.7 In Millions May 28, 2017 May 29, 2016 Other current liabilities: Accrued trade and consumer promotions $ 482.6 $ 563.7 Accrued payroll 326.6 386.4 Dividends payable 21.5 23.8 Accrued taxes 58.0 110.5 Accrued interest, including interest rate swaps 83.8 90.4 Grain contracts 5.6 5.5 Restructuring and other exit costs reserve 85.0 76.6 Derivative payable 18.1 35.6 Miscellaneous 291.0 302.5 Total $ 1,372.2 $ 1,595.0 In Millions May 28, 2017 May 29, 2016 Other noncurrent liabilities: Accrued compensation and benefits, including obligations for underfunded other postretirement benefit and postemployment benefit plans $ 1,249.7 $ 1,755.0 Accrued taxes 162.3 204.0 Miscellaneous 111.1 128.6 Total $ 1,523.1 $ 2,087.6 Certain Consolidated Statements of Earnings amounts are as follows: Fiscal Year In Millions 2017 2016 2015 Depreciation and amortization $ 603.6 $ 608.1 $ 588.3 Research and development expense 218.2 222.1 229.4 Advertising and media expense (including production and communication costs) 623.8 754.4 823.1 The components of interest, net are as follows: Fiscal Year Expense (Income), in Millions 2017 2016 2015 Interest expense $ 306.7 $ 319.6 $ 335.5 Capitalized interest (4.6) (7.7) (6.9) Interest income (7.0) (8.1) (13.2) Interest, net $ 295.1 $ 303.8 $ 315.4 Certain Consolidated Statements of Cash Flows amounts are as follows: Fiscal Year In Millions 2017 2016 2015 Cash interest payments $ 285.8 $ 292.0 $ 305.3 Cash paid for income taxes 551.1 533.8 562.6

QUARTERLY DATA (UNAUDITED)

QUARTERLY DATA (UNAUDITED)	12 Months Ended
	May 28, 2017
QUARTERLY DATA (UNAUDITED) [Abstract]
QUARTERLY DATA (UNAUDITED)	NOTE 18 . QUARTERLY DATA (UNAUDITED) Summarized quarterly data for fiscal 2017 and fiscal 2016 follows: In Millions, Except Per Share Amounts First Quarter Second Quarter Third Quarter Fourth Quarter Fiscal Year Fiscal Year Fiscal Year Fiscal Year 2017 2016 2017 2016 2017 2016 2017 2016 Net sales $ 3,907.9 $ 4,207.9 $ 4,112.1 $ 4,424.9 $ 3,793.2 $ 4,002.4 $ 3,806.6 $ 3,927.9 Gross margin 1,416.9 1,554.6 1,519.5 1,540.6 1,307.7 1,357.5 1,319.7 1,376.8 Net earnings attributable to General Mills 409.0 426.6 481.8 529.5 357.8 361.7 408.9 379.6 EPS: Basic $ 0.68 $ 0.71 $ 0.82 $ 0.88 $ 0.62 $ 0.61 $ 0.70 $ 0.63 Diluted $ 0.67 $ 0.69 $ 0.80 $ 0.87 $ 0.61 $ 0.59 $ 0.69 $ 0.62 Dividends per share $ 0.48 $ 0.44 $ 0.48 $ 0.44 $ 0.48 $ 0.44 $ 0.48 $ 0.46 Market price of common stock: High $ 72.64 $ 59.55 $ 71.42 $ 59.23 $ 63.87 $ 60.14 $ 61.16 $ 65.36 Low $ 62.78 $ 54.36 $ 60.65 $ 55.41 $ 59.23 $ 54.12 $ 55.91 $ 58.85 The effective tax rate for the fourth quarter of fiscal 2016 was 19.2 percent, primarily driven by tax credits and the impact of the divestiture of our business in Venezuela . During the fourth quarter of fiscal 2016, we sold our General Mills de Venezuela CA subsidiary to a third party and exited our business in Venezuela. As a resu lt of this transaction, we recorded a pre-tax loss of $37.6 million. In addition, we sold our Gen eral Mills Argentina S.A. foodservice business in Argentina to a third party and recorded a pre-tax loss of $14.8 million.

SCHEDULE II - VALUATION OF QUAL

SCHEDULE II - VALUATION OF QUALIFYING ACCOUNTS	12 Months Ended
	May 28, 2017
SCHEDULE II - Valuation of Qualifying Accounts [Abstract]
SCHEDULE II - VALUATION OF QUALIFYING ACCOUNTS	General Mills, Inc. and Subsidiaries Schedule II - Valuation of Qualifying Accounts Fiscal Year In Millions 2017 2016 2015 Allowance for doubtful accounts: Balance at beginning of year $ 29.6 $ 25.3 $ 21.0 Additions charged to expense 16.6 21.4 19.8 Bad debt write-offs (23.2) (17.5) (12.5) Other adjustments and reclassifications 1.3 0.4 (3.0) Balance at end of year $ 24.3 $ 29.6 $ 25.3 Valuation allowance for deferred tax assets: Balance at beginning of year $ 227.0 $ 215.4 $ 221.6 Additions charged to expense 5.2 (1.5) 2.9 Adjustments due to acquisitions, translation of amounts, and other (0.4) 13.1 (9.1) Balance at end of year $ 231.8 $ 227.0 $ 215.4 Reserve for restructuring and other exit charges: Balance at beginning of year $ 76.6 $ 120.8 $ 3.5 Additions charged to expense, including translation amounts 104.0 70.2 185.1 Net amounts utilized for restructuring activities (95.6) (114.4) (67.8) Balance at end of year $ 85.0 $ 76.6 $ 120.8 Reserve for LIFO valuation: Balance at beginning of year $ 219.3 $ 214.2 $ 216.9 Increase (decrease) (10.2) 5.1 (2.7) Balance at end of year $ 209.1 $ 219.3 $ 214.2

Summary of Significant Accoun28

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	May 28, 2017
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]
Cash and Cash Equivalents	Cash and Cash Equivalents We consider all investments purchased with an original maturity of three months or less to be cash equivalents.
Inventories	Inventories All inventories in the United States other than grain are valued at the lower of cost, using the last-in, first-out (LIFO) method, or market. Grain inventories are valued at net realizable value, and all related cash contracts and derivatives are valued at fair value, with all net changes in value recorded in earnings currently. Inventories outside of the United States are generally valued at the lower of cost, using the first-in, first-out (FIFO) method, or net realizable value. Shipping costs associated with the distribution of finished product to our customers are recorded as cost of sales, and are recognized when the related finished product is shipped to and ac cepted by the customer.
Land, Buildings, Equipment, and Depreciation	Land, Buildings, Equipment, and Depreciation Land is recorded at historical cost. Buildings and equipment, including capitalized interest and internal engineering costs, are recorded at cost and depreciated over estimated useful lives, primarily using the straight-line method. Ordinary maintenance an d repairs are charged to cost of sales. Buildings are u sually depreciated over 40 years, and equipment, furniture, and software are usually depreciated over 3 to 10 years. Fully depreciated assets are retained in buildings and equipment until disposa l. When an item is sold or retired, the accounts are relieved of its cost and r elated accumulated depreciation and the resulting gains and losses, if any, are recognized in earnings. As of May 28, 2017 , assets held for sale were insignificant. Long-lived asse ts are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset (or asset group) may not be recoverable. An impairment loss would be recognized when estimated undiscounted future cash flows from the operation and disposition of the asset group are less than the carrying amount of the asset group. Asset groups have identifiable cash flows and are largely independent of other asset groups. Measurement of an impairment loss would be based on the excess o f the carrying amount of the asset group over its fair value. Fair value is measured using a discounted cash flow model or independent appraisals, as appropriate.
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Goodwill is not subject to amortization and is tested for impairment annually and whenever events or changes in circumstances indicate that impairment may have occurred. In fiscal 2016, we changed the date of our annual goodwill and indefinite-lived intangible asset impairment assessment from the first day of the third quarter to the first day of the second quarter to more closely align with the timing of our annual long-range planning process. Impairment testing is performed for each of our reporting units. We compare the carrying value of a reporting unit, including goodwill, to the fair value of the unit. Carrying value is based on the assets and liabilities associated with the operations of that reporting unit, which often requ ires allocation of shared or corporate items among reporting units. If the carrying amount of a reporting unit exceeds its fair value, we revalue all assets and liabilities of the reporting unit, excluding goodwill, to determine if the fair value of the ne t assets is greater than the net assets including goodwill. If the fair value of the net assets is less than the carrying amount of net assets including goodwill, impairment has occurred. Our estimates of fair value are determined based on a discounted cas h flow model. Growth rates for sales and profits are determined using inputs from our long-range planning process. We also make estimates of discount rates, perpetuity growth assumptions, market comparables, and other factors. We evaluate the useful live s of our other intangible assets, mainly brands, to determine if they are finite or indefinite-lived. Reaching a determination on useful life requires significant judgments and assumptions regarding the future effects of obsolescence, demand, competition, other economic factors (such as the stability of the industry, known technological advances, legislative action that results in an uncertain or changing regulatory environment, and expected changes in distribution channels), the level of required maintenan ce expenditures, and the expected lives of other related groups of assets. Intangible assets that are deemed to have definite lives are amortized on a straight-line basis, over their useful lives, generally ranging from 4 to 30 years. Our indefinite-lived intangible assets, mainly intangible assets primarily associated with the Pillsbury , Totino’s , Progresso , Yoplait , Old El Paso , Yoki , Häagen-Dazs , and Annie’s brands, are also tested for impairment annually and whenever events or changes in circumstances indicate that their carrying value may not be recoverable. Our estimate of the fair value of the brands is based on a discounted cash flow model using inputs which included projected revenues from our long-range plan, assumed royalty rates that could be pa yable if we did not own the brands, and a discount rate. Our finite-lived intangible assets, primarily acquired franchise agreements and customer relationships, are reviewed for impairment whene ver events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. An impairment loss would be recognized when estimated undiscounted future cash flows from the operation and disposition of the asset are less than the carrying amount of the asset. Assets generally have identifiable cash flows and are largely independent of other assets. Measurement of an impairment loss would be based on the excess of the carrying amount of the asset over its fair value. Fair value is measured using a discounted cash flow model or other similar valuation model, as appropriate.
Investments in Unconsolidated Joint Ventures and Redeemable Interest	Investments in Unconsolidated Joint Ventures Our investments in companies over which we have the ability to exercise significant influence are stated at cost plus our share of undistributed earnings or losses. We receive royalty income from certain joint ventures, incur various expenses (primarily research and development), and record the tax impact of certain joint venture operations that are structured as partnerships. In addition, we make advances to our joint ventures in the form of loans or capital i nvestments. We also sell certain raw materials, semi-finished goods, and finished goods to the joint ventures, generally at market prices. In addition, we assess our investments in our joint ventures if we have reason to believe an impairment may have occ urred including, but not limited to, as a result of ongoing operating losses, projected decreases in earnings, increases in the weighted average cost of capital, or significant business disruptions. The significant assumptions used to estimate fair value include revenue growth and profitability, royalty rates, capital spending, depreciation and taxes, foreign currency exchange rates, and a discount rate. By their nature, these projections and assumptions are uncertain. If we were to determine the current f air value of our investment was less than the carrying value of the investment , then we would assess if the shortfall was of a temporary or permanent nature and write down the investment to its fair value if we conclude d the impairment is other than tempor ary. Redeemable Interest We have a 51 percent control ling interest in Yoplait SAS , a consolidated entity. Sodiaal International (Sodiaal) holds the remaining 49 pe rcent interest in Yoplait SAS. Sodiaal has the ability to put all or a portion of its redeem able interest to us at fair value once per year , up to three times before December 2024 . This put option requires us to classify Sodiaal’s interest as a redeemable interest outside of equity on our Consolidated Balance Sheets for as long as the put is exer cisable by Sodiaal. When the put is no longer exercisable, the redeemable interest will be reclassified to noncontrolling interests on our Consolidated Balance Sheets. We adjust the value of the redeemable interest through additional paid-in capital on our Consolidated Balance Sheets quarterly to the redeemable interest’s redemption value, which approximates its fair value . During the second and third quarters of fiscal 2017 , we adjusted the redeemable interest’s redemption value based on a discounted cash flow model. The significant assumptions used to estimate the r edemption value include projected revenue growth and profitability from our long-range plan, capital spending, depreciation, taxes, foreign currency exchange rates, and a discount rate.
Revenue Recognition	Revenue Recognition We recognize sales revenue when the shipment is accepted by our customer. Sales include shipping and handling charges billed to the customer and are reported net of consumer coupon redemption, trade promotion and other costs, including estimated allowances for returns, unsalable product, and prompt pay discounts. Sales, use, value-added, and other excise taxes are not recognized in revenue. Coupons are recorded when distributed, based on estimated redemption rates. Trade promot ions are recorded based on estimated participation and performance levels for offered programs at the time of sale. We generally do not allow a right of return. However, on a limited case-by-case basis with prior approval, we may allow customers to return product. In limited circumstances, product returned in saleable condition is resold to other customers or outlets. Receivables from customers generally do not bear interest. Terms and collection patterns vary around the world and by channel. The allowance for doubtful accounts represents our estimate of probable non-payments and credit losses in our existing receivables, as determined based on a review of past due balances and other specific account data. Account balances are written off against the allowan ce when we deem the amount is uncollectible.
Environmental	Environmental Environmental costs relating to existing conditions caused by past operations that do not contribute to current or future revenues are expensed. Liabilities for anticipated remediation costs are recorded on an undiscounted basis when they are probable and reasonably estimable, generally no later than the completion of feasibility studies or our commitment to a plan of action.
Advertising Production Costs	Advertising Production Costs We expense the production costs of advert ising the first time that the advertising takes place.
Research and Development	Research and Development All expenditures for research and development (R&D) are charged against earnings in the period incurred. R&D includes expenditures for new product and manufacturing process i nnovation, and the annual expenditures are comprised primarily of internal salari es, wages, consulting, and supplies attributable to R&D activities. Other costs include depreciation and maintenance of research facilities, including assets at facilities tha t are engaged in pilot plant activities.
Foreign Currency Translation	Foreign Currency Translation For all significant foreign operations, the functional currency is the local currency. Assets and liabilities of these operations are translated at the period-end exchange rates. Incom e statement accounts are translated using the average exchan ge rates prevailing during the period . Translation adjustments are reflected within accumula ted other comprehensive loss (AOCI) in stockholders’ equity. Gains and losses from foreign currency tran sactions are included in net earnings for the period , except for gains and losses on investments in subsidiaries for which settlement is not planned for the foreseeable future and foreign exchange gains and losses on instruments designated as net investmen t hedges. These gains and losses are recorded in AOCI .
Derivative Instruments	Derivative Instruments All d erivatives are recognized on our Consolidated Balance Sheets at fair value based on quoted market prices or our estimate of their fair value, and are recorded in either cu rrent or noncurrent assets or liabilities based on their maturity. Changes in the fair values of derivatives are recorded in net earnings or other comprehensive income, based on whether the instrument is designated and effective as a hedge transaction and, if so, the type of hedge transaction. Gains or losses on derivative instruments reported in AOCI are reclassified to earnings in the period the hedged item affects earnings. If the underlying hedged transaction ceases to exist, any associated amounts repo rted in AOCI are reclassified to earnings at that time. Any ineffectiveness is recognized in earnings in the current period.
Stock-based Compensation	Stock-based Compensation We generally measure compensation expense for grants of restricted stock units using the value of a shar e of our stock on the date of grant. We estimate the value of stoc k option grants using a Black- Scholes valuation model. Stock -based compensation is recognized straight line over the vesting period. Our stock -based compensation expense is recorded in selli ng, general and administrative ( SG&A ) expenses and cost of sales in our Consolidated Statements of Earnings and allocated to each reportable segment in our segment results. Certain equity-based compensation plans contain provisions that accelerate vesting of awards upon retirement, termination, or death of eligible employees and directors. We consider a stock-based award to be vested when the employee’s retention of the award is no longer contingent on providing subsequent service. Accordingly, the related compensation cost is generally recognized immediately for awards granted to retirement-eligible individuals or over the period from the grant date to the date retirement eligibility is achieved, if less than the stated vesting period. We report the benef its of tax deductions in excess of recognized compensation cost as a financing cash flow, thereby reducing net operating cash flows and increasing net financing cash flows.
Defined Benefit Pension, Other Postretirement Benefit, and Postemployment Benefit Plans	Defined Benefit Pension, Other Postretirement Benefit , and Postemployment Benefit Plans We sponsor several domestic and foreign defined benefit plans to provide pension, health care, and other welfare benefits to retired employees. Under certain circumstances, we also provide accruable benefits , primarily severance, to former or inactive employees in the Un ited States , Canada , and Mexico . We recognize an obligation for any of these benefits that vest or accumulate with service. Postemployment benefits that do not vest or accumulate with servi ce (such as severance based solely on annual pay rather than years of service) are charged to expense when incurred. Our postemployment benefit plans are unfunded. We recognize the underfunded or overfunded status of a defined benefit pension plan as an asset or liability and recognize changes in the funded status in the year in which the changes occur through AOCI .
Use of Estimates	Use of Estimates Preparing our Consolidated Financial Statements in conformity with accounting principles generally accepted in the United States requires us to make estimates and assumptions that affect reported amounts of assets and liabilities, disclosures of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expe nses during the reporting period. These estimates include our accounting for promotional expenditures, valuation of long-lived assets, intangible assets, redeemable interest, stock-based compensation, income taxes, and defined benefit pension, other p ostre tirement benefit and postemployment benefit plans . Actual results could differ from our estimates.
Other New Accounting Standards	Other New Accounting Standards In the first quarter of fiscal 2017, we adopted new accounting requirements for the presentation of certain investments using the net asset value, providing a practical expedient to exclude such investments from categorization within the fair value hierarc hy and separate disclosure. We adopted the guidance retrospectively and restated the fiscal 2016 fair value of plan asset tables in Note 13. The adoption of this guidance did not impact our results of operations or financial position. In the first quarter of fiscal 2017, we adopted new accounting requirements which permit reporting entities with a fiscal year-end that does not coincide with a month-end to apply a practical expedient that permits the entity to measure defined benefit plan assets and obligations using the month-end that is closest to the entity’s fiscal year-end and apply such practical expedient con sistently to all plans. The adoption of this guidance did not have a material impact on our results of operations or financial position. In the fourth quarter of fiscal 2016, we adopted new accounting requirements for the presentation of deferred tax asse ts and liabilities, requiring noncurrent classification for all deferred tax assets and liabilities on the statement of financial position. This presentation change has been implemented retroactively. The adoption of this guidance did not have a material i mpact on our financial position. In the first quarter of fiscal 2016, we adopted new accounting requirements for the classification of debt issuance costs presented in the balance sheet as a direct reduction from the carrying amount of the debt liability. This presentation change has been implemented retroactively. The adoption of this guidance did not have a material impact on our financial position. In the second quarter of fiscal 2015, we adopted new accounting requirements for share-based payment awar ds issued based upon specific performance targets. The adoption of this guidance did not have a material impact on our results of operations or financial position. In the first quarter of fiscal 2015, we adopted new accounting requirements on the financia l statement presentation of unrecognized tax benefits when a net operating loss, a similar tax loss, or a tax credit carryforward exists. The adoption of this guidance did not have an impact on our results of operations or financial position.

Restructuring, Impairment, an29

Restructuring, Impairment, and Other Exit Costs (Tables)	12 Months Ended
	May 28, 2017
RESTRUCTURING, IMPAIRMENT, AND OTHER EXIT COSTS [Abstract]
Schedule of Restructuring, Impairment, and Other Exit Costs [Table Text Block]	Fiscal 2017 In Millions Severance Asset Write-offs Pension Related Accelerated Depreciation Other Total Global reorganization $ 66.3 $ - $ - $ - $ 5.8 $ 72.1 Closure of Melbourne, Australia plant 11.4 4.5 - 5.6 0.4 21.9 Restructuring of certain international product lines 7.0 37.0 - (0.3) 1.4 45.1 Closure of Vineland, New Jersey plant 12.3 7.9 1.5 14.5 5.2 41.4 Project Compass (1.5) 0.1 - 0.2 0.8 (0.4) Project Century (1.0) 13.0 0.7 18.5 12.8 44.0 Total $ 94.5 $ 62.5 $ 2.2 $ 38.5 $ 26.4 $ 224.1 Fiscal 2016 In Millions Severance Asset Write-offs Pension Related Accelerated Depreciation Other Total Project Compass $ 45.4 $ - $ 1.4 $ - $ 7.9 $ 54.7 Project Catalyst (8.7) 1.2 - - - (7.5) Project Century 30.9 30.7 19.1 76.5 25.4 182.6 Total $ 67.6 $ 31.9 $ 20.5 $ 76.5 $ 33.3 $ 229.8 Fiscal 2015 In Millions Severance Asset Write-offs Pension Related Accelerated Depreciation Other Total Project Catalyst $ 121.5 $ 12.3 $ 6.6 $ - $ 8.0 $ 148.4 Project Century 44.3 42.3 31.2 53.1 10.9 181.8 Combination of certain operational facilities 13.0 0.7 - - 0.2 13.9 Charges associated with restructuring actions previously announced (0.6) - - - - (0.6) Total $ 178.2 $ 55.3 $ 37.8 $ 53.1 $ 19.1 $ 343.5
Schedule of Restructuring Charges and Project-Related Costs Classification [Table Text Block]	Fiscal In Millions 2017 2016 2015 Cost of sales $ 41.5 $ 78.4 $ 59.6 Restructuring, impairment, and other exit costs 182.6 151.4 283.9 Total restructuring charges 224.1 229.8 343.5 Project-related costs classified in cost of sales $ 43.9 $ 57.5 $ 13.2
Rollforward of Restructuring and Other Exit Cost Reserves [Table Text Block]	In Millions Severance Contract Termination Other Exit Costs Total Reserve balance as of May 25, 2014 $ 3.5 $ - $ - $ 3.5 Fiscal 2015 charges, including foreign currency translation 176.4 0.6 8.1 185.1 Utilized in fiscal 2015 (61.3) - (6.5) (67.8) Reserve balance as of May 31, 2015 118.6 0.6 1.6 120.8 Fiscal 2016 charges, including foreign currency translation 64.3 1.6 4.3 70.2 Utilized in fiscal 2016 (109.3) (0.7) (4.4) (114.4) Reserve balance as of May 29, 2016 73.6 1.5 1.5 76.6 Fiscal 2017 charges, including foreign currency translation 95.0 0.9 8.1 104.0 Utilized in fiscal 2017 (86.8) (1.7) (7.1) (95.6) Reserve balance as of May 28, 2017 $ 81.8 $ 0.7 $ 2.5 $ 85.0

Investments in Unconsolidated30

Investments in Unconsolidated Joint Ventures (Tables)	12 Months Ended
	May 28, 2017
INVESTMENTS IN UNCONSOLIDATED JOINT VENTURES [Abstract]
Joint Venture Related Financial Statement Activity [Table Text Block]	In Millions May 28, 2017 May 29, 2016 Cumulative investments $ 505.3 $ 518.9 Goodwill and other intangibles 472.0 469.2 Aggregate advances included in cumulative investments 284.7 300.3 Fiscal Year In Millions 2017 2016 2015 Sales to joint ventures $ 7.0 $ 10.5 $ 11.6 Net advances (repayments) (3.3) (63.9) 102.4 Dividends received 75.6 75.1 72.6
Summarized Joint Venture Income Statement on 100% Basis [Table Text Block]	Fiscal Year In Millions 2017 2016 2015 Net sales: CPW $ 1,648.4 $ 1,674.8 $ 1,894.5 HDJ 435.1 369.4 370.2 Total net sales 2,083.5 2,044.2 2,264.7 Gross margin 865.9 867.6 925.4 Earnings before income taxes 243.3 234.8 220.9 Earnings after income taxes 190.3 186.7 170.7
Summarized Joint Venture Balance Sheet on 100% Basis [Table Text Block]	In Millions May 28, 2017 May 29, 2016 Current assets $ 849.7 $ 814.1 Noncurrent assets 858.9 959.9 Current liabilities 1,469.6 1,457.3 Noncurrent liabilities 55.2 81.7

Goodwill and Other Intangible31

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	May 28, 2017
GOODWILL AND OTHER INTANGIBLE ASSETS [Abstract]
Components of goodwill and other intangible assets [Table Text Block]	In Millions May 28, 2017 May 29, 2016 Goodwill $ 8,747.2 $ 8,741.2 Other intangible assets: Intangible assets not subject to amortization: Brands and other indefinite-lived intangibles 4,161.1 4,147.5 Intangible assets subject to amortization: Franchise agreements, customer relationships, and other finite-lived intangibles 524.8 536.9 Less accumulated amortization (155.5) (145.8) Intangible assets subject to amortization 369.3 391.1 Other intangible assets 4,530.4 4,538.6 Total $ 13,277.6 $ 13,279.8
Changes in the carrying amount of goodwill [Table Text Block]	In Millions North America Retail Convenience Stores & Foodservice Europe & Australia Asia & Latin America Joint Ventures Total Balance as of May 25, 2014 $ 5,975.1 $ 921.1 $ 866.1 $ 390.0 $ 498.2 $ 8,650.5 Acquisition 589.8 - - - - 589.8 Other activity, primarily foreign currency translation (18.7) - (147.0) (103.0) (96.7) (365.4) Balance as of May 31, 2015 6,546.2 921.1 719.1 287.0 401.5 8,874.9 Acquisitions 54.1 - - 29.4 - 83.5 Divestitures (184.5) - - (1.9) - (186.4) Other activity, primarily foreign currency translation (5.5) - (2.6) (27.4) 4.7 (30.8) Balance as of May 29, 2016 6,410.3 921.1 716.5 287.1 406.2 8,741.2 Divestiture - (2.3) - - - (2.3) Other activity, primarily foreign currency translation (3.8) - (15.7) 25.3 2.5 8.3 Balance as of May 28, 2017 $ 6,406.5 $ 918.8 $ 700.8 $ 312.4 $ 408.7 $ 8,747.2
Changes in the carrying amount of other intangible assets [Table Text Block]	In Millions Total Balance as of May 25, 2014 $ 5,014.3 Acquisition 268.4 Impairment charge (260.0) Other activity, primarily amortization and foreign currency translation (345.7) Balance as of May 31, 2015 4,677.0 Acquisitions 30.1 Divestiture (119.6) Other activity, primarily amortization and foreign currency translation (48.9) Balance as of May 29, 2016 4,538.6 Other activity, primarily amortization and foreign currency translation (8.2) Balance as of May 28, 2017 $ 4,530.4
Schedule of at-risk brand intangibles [Table Text Block]	In Millions Carrying Value Excess Fair Value Above Carrying Value Latin America $523.0 15 % Immaculate Baking $12.0 17 %

Financial Instruments, Risk M32

Financial Instruments, Risk Management Activities, and Fair Values (Tables)	12 Months Ended
	May 28, 2017
FINANCIAL INSTRUMENTS, RISK MANAGEMENT ACTIVITIES, AND FAIR VALUES [Abstract]
Schedule of Marketable Debt and Equity Securities and Maturities [Table Text Block]	Cost Fair Value Gross Gains Gross Losses Fiscal Year Fiscal Year Fiscal Year Fiscal Year In Millions 2017 2016 2017 2016 2017 2016 2017 2016 Available for sale: Debt securities $ 265.4 $ 165.7 $ 265.5 $ 165.8 $ 0.1 $ 0.1 $ - $ - Equity securities 1.8 1.8 9.9 8.4 8.1 6.6 - - Total $ 267.2 $ 167.5 $ 275.4 $ 174.2 $ 8.2 $ 6.7 $ - $ - Scheduled maturities of our marketable securities are as follows: Available for Sale In Millions Cost Fair Value Under 1 year (current) $ 265.4 $ 265.5 Equity securities 1.8 9.9 Total $ 267.2 $ 275.4
Schedule of Unallocated Corporate items [Table Text Block]	Fiscal Year In Millions 2017 2016 2015 Net loss on mark-to-market valuation of commodity positions $ (22.0) $ (69.1) $ (163.7) Net loss on commodity positions reclassified from unallocated corporate items to segment operating profit 32.0 127.9 84.4 Net mark-to-market revaluation of certain grain inventories 3.9 4.0 (10.4) Net mark-to-market valuation of certain commodity positions recognized in unallocated corporate items $ 13.9 $ 62.8 $ (89.7)
Schedule of Pre-tax Amounts of Cash-Settled Interest Rate Hedges in AOCI [Table Text Block]	In Millions Gain/(Loss) 5.65% notes due February 15, 2019 0.8 3.15% notes due December 15, 2021 (45.0) 1.0% notes due April 27, 2023 (1.4) 3.65% notes due February 15, 2024 12.0 3.2% notes due February 10, 2027 16.6 1.5% notes due April 27, 2027 (3.2) 5.4% notes due June 15, 2040 (12.9) 4.15% notes due February 15, 2043 10.1 Net pre-tax hedge loss in AOCI $ (23.0)
Schedule of Interest Rate Swaps [Table Text Block]	In Millions May 28, 2017 May 29, 2016 Pay-floating swaps - notional amount $ 1,000.0 $ 1,000.0 Average receive rate 1.8 % 1.8 % Average pay rate 1.6 % 1.1 %
Schedule of Swap Contract Maturities [Table Text Block]	In Millions Pay Floating 2018 $ 500.0 2020 $ 500.0 Total $ 1,000.0
Reconciliation of Net Fair Values of Assets Subject to Offsetting Arrangements [Table Text Block]	May 28, 2017 Assets Liabilities Gross Amounts Not Offset in the Balance Sheet (e) Gross Amounts Not Offset in the Balance Sheet (e) In Millions Gross Amounts of Recognized Assets Gross Liabilities Offset in the Balance Sheet (a) Net Amounts of Assets (b) Financial Instruments Cash Collateral Received Net Amount (c) Gross Amounts of Recognized Liabilities Gross Assets Offset in the Balance Sheet (a) Net Amounts of Liabilities (b) Financial Instruments Cash Collateral Pledged Net Amount (d) Commodity contracts $11.5 $- $11.5 $(7.2) $- $4.3 $(8.2) $- $(8.2) $7.2 $- $(1.0) Interest rate contracts 0.9 - 0.9 (0.5) - 0.4 (0.5) - (0.5) 0.5 - - Foreign exchange contracts 16.5 - 16.5 (7.2) - 9.3 (10.2) - (10.2) 7.2 - (3.0) Equity contracts 1.9 - 1.9 - - 1.9 - - - - - - Total $30.8 $- $30.8 $(14.9) $- $15.9 $(18.9) $- $(18.9) $14.9 $- $(4.0) (a) Includes related collateral offset in our Consolidated Balance Sheets. (b ) N et fair value as recorded in our C onsolidated B alance S heets. (c ) Fair value of assets t hat could be reported net in our C onsolidated B alance S heets. (d) Fair value of liabilities that could be reported net in our Consolidated Balance Sheets. (e) Fair value of assets and liabilities reported on a gross basis in our Consolidated Balance Sheets. May 29, 2016 Assets Liabilities Gross Amounts Not Offset in the Balance Sheet (e) Gross Amounts Not Offset in the Balance Sheet (e) In Millions Gross Amounts of Recognized Assets Gross Liabilities Offset in the Balance Sheet (a) Net Amounts of Assets (b) Financial Instruments Cash Collateral Received Net Amount (c) Gross Amounts of Recognized Liabilities Gross Assets Offset in the Balance Sheet (a) Net Amounts of Liabilities (b) Financial Instruments Cash Collateral Pledged Net Amount (d) Commodity contracts $4.4 $- $4.4 $(3.9) $- $0.5 $(22.2) $- $(22.2) $3.9 $7.5 $(10.8) Interest rate contracts 8.5 - 8.5 - - 8.5 (3.0) - (3.0) - - (3.0) Foreign exchange contracts 25.4 - 25.4 (8.7) - 16.7 (13.7) - (13.7) 8.7 - (5.0) Equity contracts 2.4 - 2.4 - - 2.4 - - - - - - Total $40.7 $- $40.7 $(12.6) $- $28.1 $(38.9) $- $(38.9) $12.6 $7.5 $(18.8) (a ) Includes related collateral offset in our C onsolidated B alance S heets. (b ) N et fair value as recorded in our C onsolidated B alance S heets. (c ) Fair value of assets t hat could be reported net in our C onsolidated B alance S heets. (d) Fair value of liabilities that could be reported net in our Consolidated Balance Sheets. (e) Fair value of assets and liabilities reported on a gross basis in our Consolidated Balance Sheets.
Reconciliation of Net Fair Values of Liabilities Subject to Offsetting Arrangements [Table Text Block]	May 28, 2017 Assets Liabilities Gross Amounts Not Offset in the Balance Sheet (e) Gross Amounts Not Offset in the Balance Sheet (e) In Millions Gross Amounts of Recognized Assets Gross Liabilities Offset in the Balance Sheet (a) Net Amounts of Assets (b) Financial Instruments Cash Collateral Received Net Amount (c) Gross Amounts of Recognized Liabilities Gross Assets Offset in the Balance Sheet (a) Net Amounts of Liabilities (b) Financial Instruments Cash Collateral Pledged Net Amount (d) Commodity contracts $11.5 $- $11.5 $(7.2) $- $4.3 $(8.2) $- $(8.2) $7.2 $- $(1.0) Interest rate contracts 0.9 - 0.9 (0.5) - 0.4 (0.5) - (0.5) 0.5 - - Foreign exchange contracts 16.5 - 16.5 (7.2) - 9.3 (10.2) - (10.2) 7.2 - (3.0) Equity contracts 1.9 - 1.9 - - 1.9 - - - - - - Total $30.8 $- $30.8 $(14.9) $- $15.9 $(18.9) $- $(18.9) $14.9 $- $(4.0) (a) Includes related collateral offset in our Consolidated Balance Sheets. (b ) N et fair value as recorded in our C onsolidated B alance S heets. (c ) Fair value of assets t hat could be reported net in our C onsolidated B alance S heets. (d) Fair value of liabilities that could be reported net in our Consolidated Balance Sheets. (e) Fair value of assets and liabilities reported on a gross basis in our Consolidated Balance Sheets. May 29, 2016 Assets Liabilities Gross Amounts Not Offset in the Balance Sheet (e) Gross Amounts Not Offset in the Balance Sheet (e) In Millions Gross Amounts of Recognized Assets Gross Liabilities Offset in the Balance Sheet (a) Net Amounts of Assets (b) Financial Instruments Cash Collateral Received Net Amount (c) Gross Amounts of Recognized Liabilities Gross Assets Offset in the Balance Sheet (a) Net Amounts of Liabilities (b) Financial Instruments Cash Collateral Pledged Net Amount (d) Commodity contracts $4.4 $- $4.4 $(3.9) $- $0.5 $(22.2) $- $(22.2) $3.9 $7.5 $(10.8) Interest rate contracts 8.5 - 8.5 - - 8.5 (3.0) - (3.0) - - (3.0) Foreign exchange contracts 25.4 - 25.4 (8.7) - 16.7 (13.7) - (13.7) 8.7 - (5.0) Equity contracts 2.4 - 2.4 - - 2.4 - - - - - - Total $40.7 $- $40.7 $(12.6) $- $28.1 $(38.9) $- $(38.9) $12.6 $7.5 $(18.8) (a ) Includes related collateral offset in our C onsolidated B alance S heets. (b ) N et fair value as recorded in our C onsolidated B alance S heets. (c ) Fair value of assets t hat could be reported net in our C onsolidated B alance S heets. (d) Fair value of liabilities that could be reported net in our Consolidated Balance Sheets. (e) Fair value of assets and liabilities reported on a gross basis in our Consolidated Balance Sheets.
Schedule of Fair Value Measurement Inputs [Table Text Block]	May 28, 2017 May 28, 2017 Fair Values of Assets Fair Values of Liabilities In Millions Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Derivatives designated as hedging instruments: Interest rate contracts (a) (b) $ - $ 0.7 $ - $ 0.7 $ - $ (0.4) $ - $ (0.4) Foreign exchange contracts (c) (d) - 16.3 - 16.3 - (3.6) - (3.6) Total - 17.0 - 17.0 - (4.0) - (4.0) Derivatives not designated as hedging instruments: Foreign exchange contracts (c) (d) - 0.2 - 0.2 - (6.6) - (6.6) Commodity contracts (c) (e) 4.1 7.4 - 11.5 (3.4) (4.8) - (8.2) Grain contracts (c) (e) - 2.7 - 2.7 - (5.6) - (5.6) Total 4.1 10.3 - 14.4 (3.4) (17.0) - (20.4) Other assets and liabilities reported at fair value: Marketable investments (a) (f) 9.9 265.5 - 275.4 - - - - Long-lived assets (g) - 43.7 - 43.7 - - - - Total 9.9 309.2 - 319.1 - - - - Total assets, liabilities, and derivative positions recorded at fair value $ 14.0 $ 336.5 $ - $ 350.5 $ (3.4) $ (21.0) $ - $ (24.4) (a) These contracts and investments are recorded as prepaid expenses and other current assets, other assets, other current liabilities or other liabilities, as appropriate, based on whether in a gain or loss position. Certain marketable investments are recorded as cash and cash equivalents. (b) Based on LIBOR and swap rates. (c) These contracts are recorded as prepaid expenses and other current assets, other assets, other current liabilities or other liabilities, as appropriate, based on whether in a gain or loss position. (d) Based on observable market transactions of spot currency rates and forward currency prices. (e) Based on prices of futures exchanges and recently reported transactions in the marketplace. (f) Based on prices of common stock and bond matrix pricing. (g) We recorded $47.4 million in non-cash impairment charges in fiscal 2017 to write down certain long-lived assets to their fair value. Fair value was based on recently reported transactions for similar assets in the marketplace. These asse ts had a carrying value of $91.1 million and were associated with the restructuring actions described in Note 4. May 29, 2016 May 29, 2016 Fair Values of Assets Fair Values of Liabilities In Millions Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Derivatives designated as hedging instruments: Interest rate contracts (a) (b) $ - $ 7.7 $ - $ 7.7 $ - $ (3.0) $ - $ (3.0) Foreign exchange contracts (c) (d) - 12.2 - 12.2 - (12.2) - (12.2) Total - 19.9 - 19.9 - (15.2) - (15.2) Derivatives not designated as hedging instruments: Foreign exchange contracts (c) (d) - 13.2 - 13.2 - (1.5) - (1.5) Commodity contracts (c) (e) 2.6 1.7 - 4.3 (0.6) (21.6) - (22.2) Grain contracts (c) (e) - 1.8 - 1.8 - (5.5) - (5.5) Total 2.6 16.7 - 19.3 (0.6) (28.6) - (29.2) Other assets and liabilities reported at fair value: Marketable investments (a) (f) 8.4 165.8 - 174.2 - - - - Long-lived assets (g) - 26.0 - 26.0 - - - - Total 8.4 191.8 - 200.2 - - - - Total assets, liabilities, and derivative positions recorded at fair value $ 11.0 $ 228.4 $ - $ 239.4 $ (0.6) $ (43.8) $ - $ (44.4) (a) These contracts and investments are recorded as prepaid expenses and other current assets, other assets, other current liabilities or other liabilities, as appropriate, based on whether in a gain or loss position. Certain marketable investments are recorded as cash and cash equivalents. (b) Based on LIBOR and swap rates. (c) These contracts are recorded as prepaid expenses and other current assets or as other current liabilities, as appropriate, based on whether in a gain or loss position. (d) Based on observable market transactions of spot currency rates and forward currency prices. (e) Based on prices of futures exchanges and recently reported transactions in the marketplace. (f) Based on prices of common stock and bond matrix pricing. (g) We reco rded $11.4 million in non-cash impairment charges in fiscal 2016 to write down certain long-lived assets to their fair value. Fair value was based on recently reported transactions for similar assets in the marketplace. These assets had a carrying value of $28.2 million and were associated with the restructuring actions described in Note 4.
Schedule of Gains and Losses on Hedges [Table Text Block]	Interest Rate Contracts Foreign Exchange Contracts Equity Contracts Commodity Contracts Total Fiscal Year Fiscal Year Fiscal Year Fiscal Year Fiscal Year In Millions 2017 2016 2017 2016 2017 2016 2017 2016 2017 2016 Derivatives in Cash Flow Hedging Relationships: Amount of gain (loss) recognized in other comprehensive income (OCI) (a) $ 24.0 $ (2.6) $ 46.3 $ 21.2 $ - $ - $ - $ - $ 70.3 $ 18.6 Amount of net gain (loss) reclassified from AOCI into earnings (a) (b) (5.0) (10.6) 33.8 22.1 - - - - 28.8 11.5 Amount of net gain (loss) recognized in earnings (c) 0.1 (0.1) 0.6 (0.7) - - - - 0.7 (0.8) Derivatives in Fair Value Hedging Relationships: Amount of net gain recognized in earnings (d) 4.3 0.1 - - - - - - 4.3 0.1 Derivatives in Net Investment Hedging Relationships: Amount of loss recognized in OCI (a) - - - (0.2) - - - - - (0.2) Derivatives Not Designated as Hedging Instruments: Amount of net gain (loss) recognized in earnings (d) - - 7.6 1.1 17.8 (4.5) (16.2) (56.1) 9.2 (59.5) (a) Effective portion. (b) Gain (loss) reclassified from AOCI into earnings is reported in interest, net for interest rate swaps and in cost of sales and SG&A expenses for foreign exchange contracts. (c) Gain (loss) recognized in earnings is related to the ineffective portion of the hedging relationship, including SG&A expenses for foreign exchange contracts and interest, net for interest rate contracts. No amounts were reported as a result of being excluded from the assessment of hedge effectiveness. (d) Gain (loss) recognized in earnings is reported in interest, net for interest rate contracts, in cost of sales for commodity contracts, and in SG&A expenses for equity contracts and foreign exchange contracts.
Schedule of After-tax Amounts of Cash Flow Hedges in AOCI [Table Text Block]	In Millions After-Tax Gain/(Loss) Unrealized losses from interest rate cash flow hedges $ (12.9) Unrealized gains from foreign currency cash flow hedges 14.4 After-tax gain in AOCI related to hedge derivatives $ 1.5
Customer Concentractions [Table Text Block]	During fiscal 2017 , customer concentration was as follows: Percent of total Consolidated North America Retail Convenience Stores & Foodservice Europe & Australia Asia & Latin America Wal-mart (a): Net sales 20% 29% 7% 2% 4% Accounts receivable 24% 8% 1% 4% Five largest customers: Net sales 52% 48% 31% 10% (a) Includes Wal-Mart Stores, Inc. and its affiliates.

Debt (Tables)

Debt (Tables)	12 Months Ended
	May 28, 2017
DEBT [Abstract]
Schedule of Components of Notes Payable [Table Text Block]	May 28, 2017 May 29, 2016 In Millions Notes Payable Weighted- Average Interest Rate Notes Payable Weighted- Average Interest Rate U.S. commercial paper $ 954.7 1.1 % $ - - % Financial institutions 279.4 7.0 269.8 8.6 Total $ 1,234.1 2.4 % $ 269.8 8.6 %
Schedule of Fee-Paid Committed and Uncommitted Credit Lines [Table Text Block]	In Billions Facility Amount Borrowed Amount Credit facility expiring: May 2022 $ 2.7 $ - June 2019 0.2 0.1 Total committed credit facilities 2.9 0.1 Uncommitted credit facilities 0.5 0.1 Total committed and uncommitted credit facilities $ 3.4 $ 0.2
Schedule of Long-term Debt Instruments [Table Text Block]	In Millions May 28, 2017 May 29, 2016 5.65% notes due February 15, 2019 $ 1,150.0 $ 1,150.0 5.7% notes due February 15, 2017 - 1,000.0 3.15% notes due December 15, 2021 1,000.0 1,000.0 3.2% notes due February 10, 2027 750.0 - Euro-denominated 2.1% notes due November 16, 2020 559.2 555.8 Euro-denominated 1.0% notes due April 27, 2023 559.2 555.8 Euro-denominated floating-rate notes due January 15, 2020 559.2 555.8 1.4% notes due October 20, 2017 500.0 500.0 5.4% notes due June 15, 2040 500.0 500.0 4.15% notes due February 15, 2043 500.0 500.0 3.65% notes due February 15, 2024 500.0 500.0 2.2% notes due October 21, 2019 500.0 500.0 Euro-denominated 1.5% notes due April 27, 2027 447.3 444.6 Euro-denominated floating-rate notes due March 20, 2019 335.5 - Euro-denominated 2.2% notes due June 24, 2021 222.8 221.0 Medium-term notes, 0.02% to 6.59%, due fiscal 2018 or later 204.2 204.2 Other, including debt issuance costs and capital leases (39.8) (26.1) 8,247.6 8,161.1 Less amount due within one year (604.7) (1,103.4) Total long-term debt $ 7,642.9 $ 7,057.7

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	12 Months Ended
	May 28, 2017
STOCKHOLDERS' EQUITY [Abstract]
Share Repurchases [Table Text Block]	Fiscal Year In Millions 2017 2016 2015 Shares of common stock 25.4 10.7 22.3 Aggregate purchase price $1,651.5 $606.7 $1,161.9
Schedule of Total Comprehensive Income (Loss) [Table Text Block]	Fiscal 2017 General Mills Noncontrolling Interests Redeemable Interest In Millions Pretax Tax Net Net Net Net earnings, including earnings attributable to redeemable and noncontrolling interests $ 1,657.5 $ 11.3 $ 32.3 Other comprehensive income (loss): Foreign currency translation $ 19.5 $ - 19.5 2.5 (15.7) Net actuarial income 307.3 (109.4) 197.9 - - Other fair value changes: Securities 1.3 (0.5) 0.8 - - Hedge derivatives 65.9 (16.1) 49.8 - 3.5 Reclassification to earnings: Hedge derivatives (a) (25.2) 2.4 (22.8) - (2.9) Amortization of losses and prior service costs (b) 197.2 (74.7) 122.5 - - Other comprehensive income (loss) 566.0 (198.3) 367.7 2.5 (15.1) Total comprehensive income $ 2,025.2 $ 13.8 $ 17.2 (a ) Gain reclassified from AOCI into earnings is reported in interest, net for interest rate swaps and in cost of sales and SG&A expenses for foreign exchange contracts. (b) Loss reclassified from AOCI into earnings is reported in SG&A expense s . Fiscal 2016 General Mills Noncontrolling Interests Redeemable Interest In Millions Pretax Tax Net Net Net Net earnings, including earnings attributable to redeemable and noncontrolling interests $ 1,697.4 $ 8.4 $ 31.0 Other comprehensive Income (loss): Foreign currency translation $ (107.6) $ - (107.6) 2.8 (3.9) Net actuarial loss (514.2) 188.3 (325.9) - - Other fair value changes: Securities 0.2 (0.1) 0.1 - - Hedge derivatives 16.5 (2.2) 14.3 - 1.7 Reclassification to earnings: Hedge derivatives (a) (13.5) 2.5 (11.0) - 1.5 Amortization of losses and prior service costs (b) 206.8 (78.2) 128.6 - - Other comprehensive income (loss) (411.8) 110.3 (301.5) 2.8 (0.7) Total comprehensive income $ 1,395.9 $ 11.2 $ 30.3 (a ) Gain reclassified from AOCI into earnings is reported in interest, net for interest rate swaps and in cost of sales and SG&A expenses for foreign exchange contracts. (b) Loss reclassified from AOCI into earnings is reported in SG&A expense s . Fiscal 2015 General Mills Noncontrolling Interests Redeemable Interest In Millions Pretax Tax Net Net Net Net earnings, including earnings attributable to redeemable and noncontrolling interests $ 1,221.3 $ 8.2 $ 29.9 Other comprehensive income (loss): Foreign currency translation $ (727.9) $ - (727.9) (78.2) (151.8) Net actuarial loss (561.1) 202.7 (358.4) - - Other fair value changes: Securities 1.3 (0.5) 0.8 - - Hedge derivatives 13.6 (4.8) 8.8 - (4.7) Reclassification to earnings: Hedge derivatives (a) 0.7 0.5 1.2 - 3.7 Amortization of losses and prior service costs (b) 170.2 (65.1) 105.1 - - Other comprehensive income (loss) (1,103.2) 132.8 (970.4) (78.2) (152.8) Total comprehensive income (loss) $ 250.9 $ (70.0) $ (122.9) (a ) Loss reclassified from AOCI into earnings is reported in interest, net for interest rate swaps and in cost of sales and SG&A expenses for foreign exchange contracts. (b) Loss reclassified from AOCI into earnings is reported in SG&A expense s .
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	In Millions 2017 2016 Foreign currency translation adjustments $ (624.7) $ (644.2) Unrealized gain (loss) from: Securities 4.6 3.8 Hedge derivatives 1.5 (25.5) Pension, other postretirement, and postemployment benefits: Net actuarial loss (1,645.4) (1,958.2) Prior service credits 19.5 11.9 Accumulated other comprehensive loss $ (2,244.5) $ (2,612.2)

Stock Plans (Tables)

Stock Plans (Tables)	12 Months Ended
	May 28, 2017
STOCK PLANS [Abstract]
Estimated fair value of stock options granted and the assumptions used for the Black-Scholes option-pricing model [Table Text Block]	Fiscal Year 2017 2016 2015 Estimated fair values of stock options granted $8.80 $7.24 $7.22 Assumptions: Risk-free interest rate 1.7 % 2.4 % 2.6 % Expected term 8.5 years 8.5 years 8.5 years Expected volatility 17.8 % 17.6 % 17.5 % Dividend yield 2.9 % 3.2 % 3.1 %
Information on stock option activity [Table Text Block]	Options Exercisable (Thousands) Weighted-Average Exercise Price Per Share Options Outstanding (Thousands) Weighted-Average Exercise Price Per Share Balance as of May 25, 2014 29,452.8 28.37 44,169.0 32.10 Granted 2,253.1 53.70 Exercised (7,297.2) 26.68 Forfeited or expired (47.7) 43.73 Balance as of May 31, 2015 26,991.5 30.44 39,077.2 34.35 Granted 1,930.2 55.72 Exercised (8,471.0) 28.49 Forfeited or expired (134.8) 48.16 Balance as of May 29, 2016 22,385.1 $ 32.38 32,401.6 $ 37.09 Granted 2,446.0 66.52 Exercised (4,904.9) 30.76 Forfeited or expired (108.3) 57.52 Balance as of May 28, 2017 20,899.2 $ 33.83 29,834.4 $ 40.47
Net cash proceeds and intrinsic value of options exercised [Table Text Block]	Fiscal Year In Millions 2017 2016 2015 Net cash proceeds $ 112.6 $ 171.9 $ 163.7 Intrinsic value of options exercised $ 176.5 $ 268.4 $ 201.9
Information on restricted stock unit and performance share units activity [Table Text Block]	Equity Classified Liability Classified Share-Settled Units (Thousands) Weighted-Average Grant-Date Fair Value Share-Settled Units (Thousands) Weighted-Average Grant-Date Fair Value Non-vested as of May 29, 2016 5,100.4 $ 48.60 211.4 $ 48.37 Granted 1,418.7 67.02 43.6 66.75 Vested (1,710.3) 42.50 (119.8) 41.21 Forfeited, expired, or reclassified (317.6) 57.96 (11.9) 57.76 Non-vested as of May 28, 2017 4,491.2 $ 56.08 123.3 $ 56.93 Fiscal Year 2017 2016 2015 Number of units granted (thousands) 1,462.3 1,351.5 1,708.2 Weighted average price per unit $ 67.01 $ 56.00 $ 53.45

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	May 28, 2017
EARNINGS PER SHARE [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Fiscal Year In Millions, Except per Share Data 2017 2016 2015 Net earnings attributable to General Mills $ 1,657.5 $ 1,697.4 $ 1,221.3 Average number of common shares - basic EPS 587.1 598.9 603.3 Incremental share effect from: (a) Stock options 8.1 9.8 11.3 Restricted stock units, performance share units, and other 2.8 3.2 4.2 Average number of common shares - diluted EPS 598.0 611.9 618.8 Earnings per share - basic $ 2.82 $ 2.83 $ 2.02 Earnings per share - diluted $ 2.77 $ 2.77 $ 1.97 (a) Increme ntal shares from stock options , restricted stock units , and performance share units are computed by the treasury stock method.
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	Fiscal Year In Millions 2017 2016 2015 Anti-dilutive stock options, restricted stock units, and performance share units 2.3 1.1 2.1

Retirement Benefits and Poste37

Retirement Benefits and Postemployment Benefits (Tables)	12 Months Ended
	May 28, 2017
RETIREMENT BENEFITS AND POSTEMPLOYMENT BENEFITS [Abstract]
Health Care Cost Trend Rates [Table Text Block]	Fiscal Year 2017 2016 Health care cost trend rate for next year 7.0% and 7.3% 7.3% and 7.5% Rate to which the cost trend rate is assumed to decline (ultimate rate) 5.0% 5.0% Year that the rate reaches the ultimate trend rate 2024 2024
Effect of One Percentage Point Change in Health Care Cost Trend Rate [Table Text Block]	In Millions One Percentage Point Increase One Percentage Point Decrease Effect on the aggregate of the service and interest cost components in fiscal 2018 $ 2.2 $ (1.9) Effect on the other postretirement accumulated benefit obligation as of May 28, 2017 59.5 (53.8)
Summarized Financial Information [Table Text Block]	Defined Benefit Pension Plans Other Postretirement Benefit Plans Postemployment Benefit Plans Fiscal Year Fiscal Year Fiscal Year In Millions 2017 2016 2017 2016 2017 2016 Change in Plan Assets: Fair value at beginning of year $ 5,539.9 $ 5,758.5 $ 602.4 $ 582.8 Actual return on assets 645.6 36.3 75.2 (0.1) Employer contributions 25.4 23.7 20.1 24.1 Plan participant contributions 8.8 5.7 15.2 14.1 Benefits payments (282.2) (277.5) (18.1) (18.5) Foreign currency (12.3) (6.8) - - Fair value at end of year $ 5,925.2 $ 5,539.9 $ 694.8 $ 602.4 Change in Projected Benefit Obligation: Benefit obligation at beginning of year $ 6,448.5 $ 6,252.1 $ 1,028.9 $ 1,079.6 $ 164.1 $ 146.6 Service cost 119.7 134.6 12.5 19.0 8.8 7.6 Interest cost 216.5 267.8 32.2 44.1 2.6 3.9 Plan amendment (130.9) 0.9 - - - 1.1 Curtailment/other 1.9 7.1 (0.3) 0.5 1.3 10.7 Plan participant contributions 8.8 5.7 15.2 14.1 - - Medicare Part D reimbursements - - 3.4 3.5 - - Actuarial loss (gain) 88.5 65.2 (77.6) (64.5) (7.4) 11.2 Benefits payments (282.6) (278.0) (63.3) (66.4) (34.7) (16.9) Foreign currency (11.8) (6.9) 0.4 (1.0) (0.2) (0.1) Projected benefit obligation at end of year $ 6,458.6 $ 6,448.5 $ 951.4 $ 1,028.9 $ 134.5 $ 164.1 Plan assets less than benefit obligation as of fiscal year end $ (533.4) $ (908.6) $ (256.6) $ (426.5) $ (134.5) $ (164.1)
Amounts Recognized in AOCI [Table Text Block]	Defined Benefit Pension Plans Other Postretirement Benefit Plans Postemployment Benefit Plans Total Fiscal Year Fiscal Year Fiscal Year Fiscal Year In Millions 2017 2016 2017 2016 2017 2016 2017 2016 Net actuarial loss $ (1,621.4) $ (1,886.0) $ (14.5) $ (57.6) $ (9.5) $ (14.6) $ (1,645.4) $ (1,958.2) Prior service (costs) credits (3.9) (6.8) 22.8 19.9 0.6 (1.2) 19.5 11.9 Amounts recorded in accumulated other comprehensive loss $ (1,625.3) $ (1,892.8) $ 8.3 $ (37.7) $ (8.9) $ (15.8) $ (1,625.9) $ (1,946.3)
Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]	Defined Benefit Pension Plans Other Postretirement Benefit Plans Postemployment Benefit Plans Fiscal Year Fiscal Year Fiscal Year In Millions 2017 2016 2017 2016 2017 2016 Projected benefit obligation $ 610.1 $ 5,490.3 $ 5.5 $ - $ 4.4 $ 4.8 Accumulated benefit obligation 542.3 4,998.3 947.9 1,024.7 130.1 159.3 Plan assets at fair value 51.9 4,498.5 694.8 602.4 - -
Components of Net Periodic Benefit Expense [Table Text Block]	Defined Benefit Pension Plans Other Postretirement Benefit Plans Postemployment Benefit Plans Fiscal Year Fiscal Year Fiscal Year In Millions 2017 2016 2015 2017 2016 2015 2017 2016 2015 Service cost $ 119.7 $ 134.6 $ 137.0 $ 12.5 $ 19.0 $ 22.4 $ 8.8 $ 7.6 $ 7.5 Interest cost 216.5 267.8 249.2 32.2 44.1 46.9 2.6 3.9 4.3 Expected return on plan assets (486.7) (496.9) (476.4) (48.5) (46.2) (40.2) - - - Amortization of losses 190.2 189.8 141.7 2.5 6.6 4.9 1.7 0.7 0.7 Amortization of prior service costs (credits) 2.5 4.7 7.4 (5.4) (5.4) (1.6) 0.6 2.5 2.4 Other adjustments 3.1 5.0 15.1 1.3 2.3 3.3 1.3 10.7 9.5 Settlement or curtailment losses 3.8 13.1 18.0 (0.9) (1.0) 1.3 (1.4) - - Net expense $ 49.1 $ 118.1 $ 92.0 $ (6.3) $ 19.4 $ 37.0 $ 13.6 $ 25.4 $ 24.4
Amounts Expected to be Recognized Over Next Fiscal Year [Table Text Block]	In Millions Defined Benefit Pension Plans Other Postretirement Benefit Plans Postemployment Benefit Plans Amortization of losses $176.9 $0.8 $0.6 Amortization of prior service costs (credits) 1.9 (5.4) 0.8
Weighted-Average Assumptions [Table Text Block]	Weighted-average assumptions used to determine fiscal year-end benefit obligations are as follows: Defined Benefit Pension Plans Other Postretirement Benefit Plans Postemployment Benefit Plans Fiscal Year Fiscal Year Fiscal Year 2017 2016 2017 2016 2017 2016 Discount rate 4.08 % 4.19 % 3.92 % 3.97 % 2.87 % 2.94 % Rate of salary increases 4.25 4.28 - - 4.46 4.35 Weighted-average assumptions used to determine fiscal year net periodic benefit expense are as follows: Defined Benefit Pension Plans Other Postretirement Benefit Plans Postemployment Benefit Plans Fiscal Year Fiscal Year Fiscal Year 2017 (a) 2016 2015 2017 (a) 2016 2015 2017 (a) 2016 2015 Discount rate 4.19 % 4.38 % 4.54 % 3.97 % 4.20 % 4.51 % 2.94 % 3.55 % 3.82 % Service cost effective rate 4.57 - - 4.42 - - 3.55 - - Interest cost effective rate 3.44 - - 3.17 - - 2.67 - - Rate of salary increases 4.28 4.31 4.44 - - - 4.35 4.36 4.44 Expected long-term rate of return on plan assets 8.17 8.53 8.53 7.85 8.14 8.13 - - - (a) Beginning in fiscal 2017, we adopted the full yield curve method.
Schedule of Allocation of Plan Assets, Including Fair Value Hierarchy Levels and Weighted-Average Target Asset Allocations [Table Text Block]	The fair values of our pension and postretirement benefit plans’ assets and their respective levels in the fair value hierarchy at May 28, 2017 , and May 29, 2016 , by asset category were as follows: May 28, 2017 May 29, 2016 In Millions Level 1 Level 2 Level 3 Total Assets Level 1 Level 2 Level 3 Total Assets Fair value measurement of pension plan assets: Equity (a) $ 1,773.0 $ 781.2 $ - $ 2,554.2 $ 1,543.7 $ 741.9 $ - $ 2,285.6 Fixed income (b) 951.9 742.2 - 1,694.1 903.8 745.8 - 1,649.6 Real asset investments (c) 253.1 95.8 - 348.9 193.6 95.2 - 288.8 Other investments (d) - - 0.3 0.3 - - 0.4 0.4 Cash and accruals 174.2 - - 174.2 195.1 - - 195.1 Fair value measurement of pension plan assets in the fair value hierarchy $ 3,152.2 $ 1,619.2 $ 0.3 $ 4,771.7 $ 2,836.2 $ 1,582.9 $ 0.4 $ 4,419.5 Investments measured at net asset value (e) 1,153.5 1,120.4 Total pension plan investments $ 5,925.2 $ 5,539.9 Fair value measurement of postretirement benefit plan assets: Equity (a) $ 122.3 $ 67.5 $ - $ 189.8 $ 128.9 $ 87.6 $ - $ 216.5 Fixed income (b) 34.1 160.0 - 194.1 18.0 83.4 - 101.4 Real asset investments (c) 18.0 14.5 - 32.5 - 14.3 - 14.3 Other investments (d) - - - - - - - - Cash and accruals 11.3 - - 11.3 8.9 - - 8.9 Fair value measurement of postretirement benefit plan assets in the fair value hierarchy $ 185.7 $ 242.0 $ - $ 427.7 $ 155.8 $ 185.3 $ - $ 341.1 Investments measured at net asset value (e) 267.1 261.3 Total postretirement benefit plan investments $ 694.8 $ 602.4 (a) Primarily publicly traded common stock for purposes of total return and to maintain equity exposure consistent with policy allocations. Investments include: United States and international equity securities, mutual funds, and equity futures valued at closing prices from national exchanges, and commingled funds valued at unit values provided by the investment managers, which are based on the fair value of the underlying investments. (b) Primarily government and corporate debt securities and futures for purposes of total return, managing fixed income exposure to policy allocations, and managing duration targets. Investments include: fixed income securities an d bond futures generally valued at closing prices from national exchanges, fixed income pricing models, and independent financial analysts; and fixed income commingled funds valued at unit values provided by the investment managers, which are based on the fair value of the underlying investments. (c) Publicly traded common stock and limited partnerships in the energy and real estate sectors for purposes of total return. Investments include: energy and real estate securities generally valued at closing pri ces from national exchanges, and commingled funds valued at unit values provided by the investment managers, which are based on the fair value of the underlying investments. (d) Global balanced fund of equity, fixed income, and real estate securities fo r purposes of meeting Canadian pension plan asset allocation policies, and insurance and annuity contracts to provide a stable stream of income for retirees and to fund postretirement medical benefits. Fair values are derived from unit values provided by t he investment managers, which are generally based on the fair value of the underlying investments and contract fair values from the providers. (e) Primarily private investments and common collective trusts that are measured at fair value using the net asse t value per share (or its equivalent) practical expedient and have not been classified in the fair value hierarchy. Weighted-average asset allocations for the past two fiscal years for our defined benefit pension and other postretirement benefit plans are as follows: Defined Benefit Pension Plans Other Postretirement Benefit Plans Fiscal Year Fiscal Year 2017 2016 2017 2016 Asset category: United States equities 28.5 % 30.5 % 31.9 % 37.2 % International equities 17.9 19.0 17.8 23.4 Private equities 7.8 8.3 3.6 3.9 Fixed income 31.7 28.6 40.0 29.4 Real assets 14.1 13.6 6.7 6.1 Total 100.0 % 100.0 % 100.0 % 100.0 %
Estimated Benefit Payments [Table Text Block]	In Millions Defined Benefit Pension Plans Other Postretirement Benefit Plans Gross Payments Medicare Subsidy Receipts Postemployment Benefit Plans 2018 $ 290.2 $ 59.5 $ 4.3 $ 21.2 2019 298.6 61.6 4.6 19.0 2020 307.7 63.0 4.2 17.4 2021 316.4 64.1 3.5 16.1 2022 325.7 64.8 3.6 15.0 2023-2027 1,767.8 328.8 18.8 61.5

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	May 28, 2017
INCOME TAXES [Abstract]
Components of earnings before income taxes and after-tax earnings from joint ventures and the corresponding income taxes thereon [Table Text Block]	Fiscal Year In Millions 2017 2016 2015 Earnings before income taxes and after-tax earnings from joint ventures: United States $ 1,941.6 $ 1,941.4 $ 1,338.6 Foreign 329.7 462.2 423.3 Total earnings before income taxes and after-tax earnings from joint ventures $ 2,271.3 $ 2,403.6 $ 1,761.9 Income taxes: Currently payable: Federal $ 368.5 $ 489.8 $ 392.7 State and local 21.1 30.8 29.3 Foreign 81.7 114.0 139.5 Total current 471.3 634.6 561.5 Deferred: Federal 201.3 123.0 70.3 State and local 10.2 (6.9) (8.7) Foreign (27.6) 4.5 (36.3) Total deferred 183.9 120.6 25.3 Total income taxes $ 655.2 $ 755.2 $ 586.8
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	Fiscal Year 2017 2016 2015 United States statutory rate 35.0 % 35.0 % 35.0 % State and local income taxes, net of federal tax benefits 0.8 0.7 0.7 Foreign rate differences (3.5) (2.2) (3.1) Repatriation of foreign earnings - - 4.5 Non-deductible goodwill - 2.6 - Domestic manufacturing deduction (2.8) (2.0) (2.9) Other, net (a) (0.7) (2.7) (0.9) Effective income tax rate 28.8 % 31.4 % 33.3 % (a ) Fiscal 2016 includes 0.6 percent tax benefit related to the divestiture of our business in Venezuela. See Note 3 for additional information.
Tax effects of temporary differences that give rise to deferred tax assets and liabilities [Table Text Block]	In Millions May 28, 2017 May 29, 2016 Accrued liabilities $ 70.0 $ 89.9 Compensation and employee benefits 419.2 491.5 Pension 196.3 322.0 Tax credit carryforwards 18.4 4.5 Stock, partnership, and miscellaneous investments 276.4 353.6 Capital losses 29.8 14.5 Net operating losses 109.5 97.9 Other 85.6 84.1 Gross deferred tax assets 1,205.2 1,458.0 Valuation allowance 231.8 227.0 Net deferred tax assets 973.4 1,231.0 Brands 1,310.1 1,311.7 Fixed assets 484.5 476.3 Intangible assets 238.6 221.8 Tax lease transactions 45.8 48.0 Inventories 60.0 53.0 Stock, partnership, and miscellaneous investments 479.4 476.0 Unrealized hedges 45.4 22.6 Other 29.0 21.2 Gross deferred tax liabilities 2,692.8 2,630.6 Net deferred tax liability $ 1,719.4 $ 1,399.6
Schedule of Changes in Total Gross Unrecognized Tax Benefit Liabilities [Table Text Block]	Fiscal Year In Millions 2017 2016 Balance, beginning of year $ 176.5 $ 161.1 Tax positions related to current year: Additions 27.2 31.6 Tax positions related to prior years: Additions 0.9 23.9 Reductions (47.9) (25.7) Settlements (9.6) (4.0) Lapses in statutes of limitations (11.6) (10.4) Balance, end of year $ 135.5 $ 176.5

Leases, Other Commitments, an39

Leases, Other Commitments, and Contingencies (Tables)	12 Months Ended
	May 28, 2017
LEASES, OTHER COMMITMENTS, AND CONTINGENCIES [Abstract]
Noncancelable Future Lease Commitments [Table Text Block]	In Millions Operating Leases Capital Leases Fiscal 2018 $ 118.8 $ 0.4 Fiscal 2019 101.7 0.4 Fiscal 2020 80.7 0.2 Fiscal 2021 60.7 0.1 Fiscal 2022 49.7 - After fiscal 2022 89.1 0.1 Total noncancelable future lease commitments $ 500.7 $ 1.2 Less: interest (0.1) Present value of obligations under capital leases $ 1.1

Business Segment and Geograph40

Business Segment and Geographic Information (Tables)	12 Months Ended
	May 28, 2017
BUSINESS SEGMENT AND GEOGRAPHIC INFORMATION [Abstract]
Operating Segment Results [Table Text Block]	Fiscal Year In Millions 2017 2016 2015 Net sales: North America Retail $ 10,196.9 $ 10,936.6 $ 11,612.1 Convenience Stores & Foodservice 1,870.0 1,923.8 1,995.1 Europe & Australia 1,824.5 1,998.0 2,126.5 Asia & Latin America 1,728.4 1,704.7 1,896.6 Total $ 15,619.8 $ 16,563.1 $ 17,630.3 Operating profit: North America Retail $ 2,303.6 $ 2,351.2 $ 2,382.7 Convenience Stores & Foodservice 401.2 378.9 353.1 Europe & Australia 164.2 200.3 179.4 Asia & Latin America 83.6 69.1 119.8 Total segment operating profit 2,952.6 2,999.5 3,035.0 Unallocated corporate items 190.1 288.9 413.8 Divestitures loss (gain) 13.5 (148.2) - Restructuring, impairment, and other exit costs 182.6 151.4 543.9 Operating profit $ 2,566.4 $ 2,707.4 $ 2,077.3
Net sales by class of similar products [Table Text Block]	Fiscal Year In Millions 2017 2016 2015 Snacks $ 3,302.2 $ 3,297.2 $ 3,392.0 Cereal 2,673.2 2,731.5 2,771.3 Convenient meals 2,653.6 2,779.0 2,810.3 Yogurt 2,403.5 2,760.9 2,938.3 Dough 1,690.6 1,820.0 1,877.0 Baking mixes and ingredients 1,654.1 1,704.3 1,867.7 Super-premium ice cream 738.4 731.2 769.5 Vegetables 310.5 532.3 937.3 Other 193.7 206.7 266.9 Total $ 15,619.8 $ 16,563.1 $ 17,630.3
Financial information by geographic area [Table Text Block]	Fiscal Year In Millions 2017 2016 2015 Net sales: United States $ 11,160.9 $ 11,930.9 $ 12,501.8 Non-United States 4,458.9 4,632.2 5,128.5 Total $ 15,619.8 $ 16,563.1 $ 17,630.3 In Millions May 28, 2017 May 29, 2016 Cash and cash equivalents: United States $ 62.9 $ 118.5 Non-United States 703.2 645.2 Total $ 766.1 $ 763.7 In Millions May 28, 2017 May 29, 2016 Land, buildings, and equipment: United States $ 2,704.0 $ 2,755.1 Non-United States 983.7 988.5 Total $ 3,687.7 $ 3,743.6

Supplemental Information (Table

Supplemental Information (Tables)	12 Months Ended
	May 28, 2017
SUPPLEMENTAL INFORMATION [Abstract]
Components of receivables [Table Text Block]	In Millions May 28, 2017 May 29, 2016 Receivables: Customers $ 1,454.4 $ 1,390.4 Less allowance for doubtful accounts (24.3) (29.6) Total $ 1,430.1 $ 1,360.8
Components of inventories [Table Text Block]	In Millions May 28, 2017 May 29, 2016 Inventories: Raw materials and packaging $ 395.4 $ 397.3 Finished goods 1,224.3 1,163.1 Grain 73.0 72.6 Excess of FIFO over LIFO cost (a) (209.1) (219.3) Total $ 1,483.6 $ 1,413.7 (a) Inventories of $893.8 million as of May 28, 2017 , and $841.0 million as of May 29, 2016 , were valued at LIFO. The difference between replacement cost and the stated LIFO inventory value is not materially different from the reserve for the LIFO valuation meth od.
Components of prepaid expenses and other current assets [Table Text Block]	In Millions May 28, 2017 May 29, 2016 Prepaid expenses and other current assets: Other receivables $ 163.7 $ 159.3 Prepaid expenses 168.9 177.9 Derivative receivables, primarily commodity-related 35.0 44.6 Grain contracts 2.7 1.8 Miscellaneous 11.3 15.4 Total $ 381.6 $ 399.0
Components of land, buildings and equipment [Table Text Block]	In Millions May 28, 2017 May 29, 2016 Land, buildings, and equipment: Land $ 79.8 $ 92.9 Buildings 2,249.2 2,236.0 Buildings under capital lease 0.3 0.3 Equipment 6,095.9 5,945.6 Equipment under capital lease 3.0 3.0 Capitalized software 545.4 523.0 Construction in progress 553.0 702.7 Total land, buildings, and equipment 9,526.6 9,503.5 Less accumulated depreciation (5,838.9) (5,759.9) Total $ 3,687.7 $ 3,743.6
Components of other assets [Table Text Block]	In Millions May 28, 2017 May 29, 2016 Other assets: Investments in and advances to joint ventures $ 505.3 $ 518.9 Pension assets 144.9 90.9 Exchangeable note with related party - 12.7 Life insurance 25.6 26.3 Miscellaneous 110.1 102.9 Total $ 785.9 $ 751.7
Components of other current liabilities [Table Text Block]	In Millions May 28, 2017 May 29, 2016 Other current liabilities: Accrued trade and consumer promotions $ 482.6 $ 563.7 Accrued payroll 326.6 386.4 Dividends payable 21.5 23.8 Accrued taxes 58.0 110.5 Accrued interest, including interest rate swaps 83.8 90.4 Grain contracts 5.6 5.5 Restructuring and other exit costs reserve 85.0 76.6 Derivative payable 18.1 35.6 Miscellaneous 291.0 302.5 Total $ 1,372.2 $ 1,595.0
Components of other noncurrent liabilities [Table Text Block]	In Millions May 28, 2017 May 29, 2016 Other noncurrent liabilities: Accrued compensation and benefits, including obligations for underfunded other postretirement benefit and postemployment benefit plans $ 1,249.7 $ 1,755.0 Accrued taxes 162.3 204.0 Miscellaneous 111.1 128.6 Total $ 1,523.1 $ 2,087.6
Consolidated statements of earnings amounts [Table Text Block]	Fiscal Year In Millions 2017 2016 2015 Depreciation and amortization $ 603.6 $ 608.1 $ 588.3 Research and development expense 218.2 222.1 229.4 Advertising and media expense (including production and communication costs) 623.8 754.4 823.1
Components of interest, net [Table Text Block]	Fiscal Year Expense (Income), in Millions 2017 2016 2015 Interest expense $ 306.7 $ 319.6 $ 335.5 Capitalized interest (4.6) (7.7) (6.9) Interest income (7.0) (8.1) (13.2) Interest, net $ 295.1 $ 303.8 $ 315.4
Consolidated statements of cash flows supplemental disclosures [Table Text Block]	Fiscal Year In Millions 2017 2016 2015 Cash interest payments $ 285.8 $ 292.0 $ 305.3 Cash paid for income taxes 551.1 533.8 562.6

Quarterly Data (Unaudited) (Tab

Quarterly Data (Unaudited) (Tables)	12 Months Ended
	May 28, 2017
QUARTERLY DATA (UNAUDITED) [Abstract]
Summarized quarterly data [Table Text Block]	In Millions, Except Per Share Amounts First Quarter Second Quarter Third Quarter Fourth Quarter Fiscal Year Fiscal Year Fiscal Year Fiscal Year 2017 2016 2017 2016 2017 2016 2017 2016 Net sales $ 3,907.9 $ 4,207.9 $ 4,112.1 $ 4,424.9 $ 3,793.2 $ 4,002.4 $ 3,806.6 $ 3,927.9 Gross margin 1,416.9 1,554.6 1,519.5 1,540.6 1,307.7 1,357.5 1,319.7 1,376.8 Net earnings attributable to General Mills 409.0 426.6 481.8 529.5 357.8 361.7 408.9 379.6 EPS: Basic $ 0.68 $ 0.71 $ 0.82 $ 0.88 $ 0.62 $ 0.61 $ 0.70 $ 0.63 Diluted $ 0.67 $ 0.69 $ 0.80 $ 0.87 $ 0.61 $ 0.59 $ 0.69 $ 0.62 Dividends per share $ 0.48 $ 0.44 $ 0.48 $ 0.44 $ 0.48 $ 0.44 $ 0.48 $ 0.46 Market price of common stock: High $ 72.64 $ 59.55 $ 71.42 $ 59.23 $ 63.87 $ 60.14 $ 61.16 $ 65.36 Low $ 62.78 $ 54.36 $ 60.65 $ 55.41 $ 59.23 $ 54.12 $ 55.91 $ 58.85

Basis of Presentation and Rec43

Basis of Presentation and Reclassifications (Details)	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Annual Reporting Period	364 days	364 days	371 days
General Mills Brasil Alimentos Ltda (Yoki) [Member] | Asia and Latin America [Member]
Annual Reporting Period	13 months
Yoplait SAS [Member] | Europe and Australia [Member]
Annual Reporting Period		13 months
Yoplait Marques SNC [Member] | Europe and Australia [Member]
Annual Reporting Period		13 months
Annie's, Inc [Member] | North America Retail [Member]
Annual Reporting Period		13 months

Summary of Significant Accoun44

Summary of Significant Accounting Policies (Details)	12 Months Ended
	May 28, 2017
Minimum [Member]
Property, Plant and Equipment [Line Items]
Finite-Lived Intangible Assets Useful Life	4 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Finite-Lived Intangible Assets Useful Life	30 years
General Mills [Member] | Yoplait SAS [Member]
Noncontrolling Interest [Line Items]
Ownership interest percentage in consolidated subsidiary	51.00%
Sodiaal International Redeemable Interest [Member] | Yoplait SAS [Member]
Noncontrolling Interest [Line Items]
Redeemable interest percentage	49.00%
Redeemable interest terms	Sodiaal has the ability to put all or a portion of its redeemable interest to us at fair value once per year, up to three times before December 2024.
Building [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment Useful Life	40 years
Equipment, Furniture and Software [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment Useful Life	3 years
Equipment, Furniture and Software [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment Useful Life	10 years

Acquisition and Divestitures (D

Acquisition and Divestitures (Divestitures) (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Nov. 27, 2016	May 29, 2016	Nov. 29, 2015	May 28, 2017	May 29, 2016	May 31, 2015
Divestitures [Line Items]
Proceeds from divestitures				$ 17.5	$ 828.5	$ 0
Pre-tax gain (loss) on sale of business				(13.5)	148.2	$ 0
Brand asset retained		$ 4,147.5		$ 4,161.1	$ 4,147.5
Green Giant Brand [Member] | Regions Excluding North America [Member]
Divestitures [Line Items]
Brand asset retained			$ 30.1
General Mills de Venezuela CA Subsidiary [Member]
Divestitures [Line Items]
Pre-tax gain (loss) on sale of business		(37.6)
General Mills Argentina S.A. Foodservice Business [Member]
Divestitures [Line Items]
Pre-tax gain (loss) on sale of business		$ (14.8)
Sale of Martel, Ohio Manufacturing Facility [Member] | Convenience Stores and Foodservice Segment [Member]
Divestitures [Line Items]
Proceeds from divestitures	$ 17.5
Pre-tax gain (loss) on sale of business	$ (13.5)
Sale of North American Green Giant Product Lines [Member]
Divestitures [Line Items]
Proceeds from divestitures			822.7
Pre-tax gain (loss) on sale of business			199.1
Net cash proceeds			$ 788

Acquisition and Divestitures (A

Acquisition and Divestitures (Acquisition) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Nov. 23, 2014	May 29, 2016	May 31, 2015
Business Acquisition [Line Items]
Goodwill, Acquired During Period		$ 83.5	$ 589.8
Indefinite-lived Intangible Assets Acquired		$ 30.1	$ 268.4
Business Acquisition, Annie's Inc [Member]
Business Acquisition [Line Items]
Aggregate purchase price	$ 821.2
Goodwill, Acquired During Period	589.8
Business Acquisition, Annie's Inc [Member] | Annie's Brand [Member]
Business Acquisition [Line Items]
Indefinite-lived Intangible Assets Acquired	244.5
Business Acquisition, Annie's Inc [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired	$ 23.9

Restructuring, Impairment, an47

Restructuring, Impairment, and Other Exit Costs (Narrative) (Details) $ in Millions	12 Months Ended
	May 28, 2017USD ($)positions	May 29, 2016USD ($)positions	May 31, 2015USD ($)positions
Restructuring and Related Cost [Line Items]
Net restructuring charges	$ 224.1	$ 229.8	$ 343.5
Cash payments for restructuring	107.8	122.6	63.6
Payments for other project related costs	46.9	54.5	9.7
Expected additional project-related costs	$ 130
Q3 2017 Organizational Restructuring Realignment [Member]
Restructuring and Related Cost [Line Items]
Restructuring action initiation date	Feb. 26, 2017
Restructuring action completion date	May 27, 2018
Number of positions affected | positions	600
Expected net expense of restructuring action	$ 75
Expected cash payments for restructuring	75
Net restructuring charges	72.1
Q2 2017 Melbourne Pasta Manufacturing Facility Closure [Member]
Restructuring and Related Cost [Line Items]
Net restructuring charges	$ 21.9
Q2 2017 Melbourne Pasta Manufacturing Facility Closure [Member] | Europe and Australia [Member]
Restructuring and Related Cost [Line Items]
Restructuring action initiation date	Nov. 27, 2016
Restructuring action completion date	May 26, 2019
Number of positions affected | positions	350
Expected net expense of restructuring action	$ 34
Expected cash payments for restructuring	3
Net restructuring charges	21.9
Q1 2017 Certain Product Lines Restructuring [Member]
Restructuring and Related Cost [Line Items]
Net restructuring charges	$ 45.1
Q1 2017 Certain Product Lines Restructuring [Member] | Asia and Latin America [Member]
Restructuring and Related Cost [Line Items]
Restructuring action initiation date	Aug. 28, 2016
Restructuring action completion date	May 26, 2019
Expected net expense of restructuring action	$ 42
Net restructuring charges	$ 45.1
Q1 2017 Brazilian Facilities Restructuring [Member] | Asia and Latin America [Member]
Restructuring and Related Cost [Line Items]
Number of positions affected | positions	420
Q1 2017 China Facilities Restructuring [Member] | Asia and Latin America [Member]
Restructuring and Related Cost [Line Items]
Number of positions affected | positions	440
Q1 2017 Vineland Facility Closure [Member]
Restructuring and Related Cost [Line Items]
Net restructuring charges	$ 41.4
Q1 2017 Vineland Facility Closure [Member] | North America Retail [Member]
Restructuring and Related Cost [Line Items]
Restructuring action initiation date	Aug. 28, 2016
Restructuring action completion date	May 26, 2019
Number of positions affected | positions	380
Expected net expense of restructuring action	$ 58
Expected cash payments for restructuring	19
Net restructuring charges	$ 41.4
Q1 2016 Project Compass [Member]
Restructuring and Related Cost [Line Items]
Restructuring action initiation date	Aug. 30, 2015
Restructuring action completion date	May 28, 2017
Number of positions affected | positions	749
Actual restructuring costs incurred to date	$ 54.3
Actual cash payments for restructuring paid to date	54.3
Net restructuring charges		54.7
Reduction in estimated restructuring charges	$ 0.4
Q2 2015 Project Century [Member]
Restructuring and Related Cost [Line Items]
Restructuring action initiation date	May 31, 2015
Net restructuring charges	$ 44	182.6	181.8
Q2 2016 Project Century, Exit Berwick and East Tamaki Facilities [Member] | Europe and Australia [Member]
Restructuring and Related Cost [Line Items]
Restructuring action initiation date	Nov. 29, 2015
Restructuring action completion date	May 28, 2017
Number of positions affected | positions	287
Actual restructuring costs incurred to date	$ 31.8
Actual cash payments for restructuring paid to date	12
Net restructuring charges	$ 1.8	30
Q1 2016 Project Century, Exit West Chicago Facility [Member] | North America Retail [Member]
Restructuring and Related Cost [Line Items]
Restructuring action initiation date	Aug. 30, 2015
Restructuring action completion date	May 27, 2018
Number of positions affected | positions	484
Expected net expense of restructuring action	$ 104
Expected cash payments for restructuring	41
Net restructuring charges	$ 23.2	$ 79.2
Q1 2016 Project Century, Exit Joplin Facility [Member] | North America Retail [Member]
Restructuring and Related Cost [Line Items]
Restructuring action initiation date		Aug. 30, 2015
Restructuring action completion date		May 29, 2016
Number of positions affected | positions		125
Actual restructuring costs incurred to date		$ 6.6
Net restructuring charges		6.3
Q1 2016 Project Century, Exit Joplin Facility [Member] | North America Retail [Member] | Maximum [Member]
Restructuring and Related Cost [Line Items]
Actual cash payments for restructuring paid to date		1
Q3 2015 Project Century, Exit Midland Facility [Member] | North America Retail and Convenience Stores and Foodservice [Member]
Restructuring and Related Cost [Line Items]
Restructuring action initiation date	Feb. 22, 2015
Restructuring action completion date	May 27, 2018
Number of positions affected | positions	94
Expected net expense of restructuring action	$ 13
Expected cash payments for restructuring	7
Net restructuring charges	$ 1.8	2.7	6.5
Q3 2015 Project Century, Exit New Albany Facility [Member] | North America Retail and Convenience Stores and Foodservice [Member]
Restructuring and Related Cost [Line Items]
Restructuring action initiation date	Feb. 22, 2015
Restructuring action completion date	May 27, 2018
Number of positions affected | positions	412
Expected net expense of restructuring action	$ 83
Expected cash payments for restructuring	40
Net restructuring charges	$ 14.6	17.1	51.3
Q2 2015 Project Century, Exit Methuen Facility [Member] | North America Retail and Convenience Stores and Foodservice [Member]
Restructuring and Related Cost [Line Items]
Restructuring action initiation date	Nov. 23, 2014
Restructuring action completion date	May 28, 2017
Number of positions affected | positions	170
Actual restructuring costs incurred to date	$ 59.7
Actual cash payments for restructuring paid to date	13
Net restructuring charges		$ 15.6	43.6
Q2 2015 Project Century, Exit Lodi Facility [Member] | North America Retail [Member]
Restructuring and Related Cost [Line Items]
Restructuring action initiation date		Nov. 23, 2014
Restructuring action completion date		May 29, 2016
Number of positions affected | positions		409
Actual restructuring costs incurred to date		$ 95.3
Actual cash payments for restructuring paid to date		22
Net restructuring charges	1.5	30.6	63.2
Project Century, Miscellaneous Costs [Member]
Restructuring and Related Cost [Line Items]
Net restructuring charges	$ 1.1	1.1	$ 17.2
Q2 2015 Project Catalyst [Member]
Restructuring and Related Cost [Line Items]
Restructuring action initiation date			Nov. 23, 2014
Restructuring action completion date			May 31, 2015
Number of positions affected | positions			759
Actual restructuring costs incurred to date			$ 140.9
Actual cash payments for restructuring paid to date			94
Net restructuring charges			148.4
Reduction in estimated restructuring charges		$ 7.5
Q1 2015 Combination of Certain Yoplait and General Mills Operational Facilities [Member]
Restructuring and Related Cost [Line Items]
Net restructuring charges			13.9
Q1 2015 Combination of Certain Yoplait and General Mills Operational Facilities [Member] | North America Retail and Europe and Australia [Member]
Restructuring and Related Cost [Line Items]
Restructuring action initiation date	Aug. 30, 2014
Restructuring action completion date	May 27, 2018
Number of positions affected | positions	240
Expected net expense of restructuring action	$ 15
Expected cash payments for restructuring	$ 14
Net restructuring charges			$ 13.9

Restructuring, Impairment, an48

Restructuring, Impairment, and Other Exit Costs (Schedule of restructuring initiatives) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Restructuring and Related Cost [Line Items]
Severance	$ 94.5	$ 67.6	$ 178.2
Asset Write-offs	62.5	31.9	55.3
Pension Related	2.2	20.5	37.8
Accelerated Depreciation	38.5	76.5	53.1
Other	26.4	33.3	19.1
Total restructuring charges	224.1	229.8	343.5
Global reorganization [Member]
Restructuring and Related Cost [Line Items]
Severance	66.3
Asset Write-offs	0
Pension Related	0
Accelerated Depreciation	0
Other	5.8
Total restructuring charges	72.1
Closure of Melbourne, Australia plant [Member]
Restructuring and Related Cost [Line Items]
Severance	11.4
Asset Write-offs	4.5
Pension Related	0
Accelerated Depreciation	5.6
Other	0.4
Total restructuring charges	21.9
Restructuring of certain international product lines [Member]
Restructuring and Related Cost [Line Items]
Severance	7
Asset Write-offs	37
Pension Related	0
Accelerated Depreciation Reversal	(0.3)
Other	1.4
Total restructuring charges	45.1
Closure of Vineland, New Jersey Plant [Member]
Restructuring and Related Cost [Line Items]
Severance	12.3
Asset Write-offs	7.9
Pension Related	1.5
Accelerated Depreciation	14.5
Other	5.2
Total restructuring charges	41.4
Project Compass [Member]
Restructuring and Related Cost [Line Items]
Severance		45.4
Severance Reversal	(1.5)
Asset Write-offs	0.1	0
Pension Related	0	1.4
Accelerated Depreciation	0.2	0
Other	0.8	7.9
Total restructuring charges		54.7
Restructuring charges reversal	(0.4)
Project Catalyst [Member]
Restructuring and Related Cost [Line Items]
Severance			121.5
Severance Reversal		(8.7)
Asset Write-offs		1.2	12.3
Pension Related		0	6.6
Accelerated Depreciation		0	0
Other		0	8
Total restructuring charges			148.4
Restructuring charges reversal		(7.5)
Project Century [Member]
Restructuring and Related Cost [Line Items]
Severance		30.9	44.3
Severance Reversal	(1)
Asset Write-offs	13	30.7	42.3
Pension Related	0.7	19.1	31.2
Accelerated Depreciation	18.5	76.5	53.1
Other	12.8	25.4	10.9
Total restructuring charges	$ 44	$ 182.6	181.8
Combination of certain operational facilities [Member]
Restructuring and Related Cost [Line Items]
Severance			13
Asset Write-offs			0.7
Pension Related			0
Accelerated Depreciation			0
Other			0.2
Total restructuring charges			13.9
Charges associated with restructuring actions previously announced [Member]
Restructuring and Related Cost [Line Items]
Severance Reversal			(0.6)
Asset Write-offs			0
Pension Related			0
Accelerated Depreciation			0
Other			0
Restructuring charges reversal			$ (0.6)

Restructuring, Impairment, an49

Restructuring, Impairment, and Other Exit Costs (Schedule of restructuring charges classification) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Restructuring and Related Cost [Line Items]
Restructuring, impairment, and other exit costs	$ 224.1	$ 229.8	$ 343.5
Project-related costs classified in cost of sales	43.9	57.5	13.2
Cost of Sales [Member]
Restructuring and Related Cost [Line Items]
Restructuring, impairment, and other exit costs	41.5	78.4	59.6
Restructuring Charges [Member]
Restructuring and Related Cost [Line Items]
Restructuring, impairment, and other exit costs	$ 182.6	$ 151.4	$ 283.9

Restructuring, Impairment, an50

Restructuring, Impairment, and Other Exit Costs (Schedule of restructuring and other exit cost reserves) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Restructuring Reserve [Roll Forward]
Reserve beginning balance	$ 76.6	$ 120.8	$ 3.5
Restructuring charges paid out of reserve, including foreign currency translation	104	70.2	185.1
Restructuring reserve utilized	(95.6)	(114.4)	(67.8)
Reserve ending balance	85	76.6	120.8
Severance [Member]
Restructuring Reserve [Roll Forward]
Reserve beginning balance	73.6	118.6	3.5
Restructuring charges paid out of reserve, including foreign currency translation	95	64.3	176.4
Restructuring reserve utilized	(86.8)	(109.3)	(61.3)
Reserve ending balance	81.8	73.6	118.6
Contract Termination [Member]
Restructuring Reserve [Roll Forward]
Reserve beginning balance	1.5	0.6	0
Restructuring charges paid out of reserve, including foreign currency translation	0.9	1.6	0.6
Restructuring reserve utilized	(1.7)	(0.7)	0
Reserve ending balance	0.7	1.5	0.6
Other Exit Costs [Member]
Restructuring Reserve [Roll Forward]
Reserve beginning balance	1.5	1.6	0
Restructuring charges paid out of reserve, including foreign currency translation	8.1	4.3	8.1
Restructuring reserve utilized	(7.1)	(4.4)	(6.5)
Reserve ending balance	$ 2.5	$ 1.5	$ 1.6

Investments in Unconsolidated51

Investments in Unconsolidated Joint Ventures (Narrative) (Details) - country	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Schedule of Equity Method Investments [Line Items]
Annual reporting period ended March 31	364 days	364 days	371 days
Cereal Partners Worldwide [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage	50.00%
Annual reporting period ended March 31	12 months
Cereal Partners Worldwide [Member] | Minimum [Member]
Schedule of Equity Method Investments [Line Items]
Number of countries in which entity operates	130
Haagen Dazs Japan [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage	50.00%
Annual reporting period ended March 31	12 months

Investments in Unconsolidated52

Investments in Unconsolidated Joint Ventures (Schedule of joint venture related balance sheet activity) (Details) - USD ($) $ in Millions	May 28, 2017	May 29, 2016
Schedule of Equity Method Investments [Line Items]
Goodwill and other intangibles	$ 13,277.6	$ 13,279.8
Corporate Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Cumulative investments	505.3	518.9
Goodwill and other intangibles	472	469.2
Aggregate advances included in cumulative investments	$ 284.7	$ 300.3

Investments in Unconsolidated53

Investments in Unconsolidated Joint Ventures (Schedule of joint venture earnings and cash flow activity) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Schedule of Equity Method Investments [Line Items]
Net advances (repayments)	$ (3.3)	$ (63.9)	$ 102.4
Dividends received	75.6	75.1	72.6
Corporate Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Sales to joint ventures	7	10.5	11.6
Net advances (repayments)	(3.3)	(63.9)	102.4
Dividends received	$ 75.6	$ 75.1	$ 72.6

Investments in Unconsolidated54

Investments in Unconsolidated Joint Ventures (Schedule of combined financial information for the joint ventures on a 100% basis) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Schedule of Equity Method Investments [Line Items]
Net sales	$ 2,083.5	$ 2,044.2	$ 2,264.7
Gross margin	865.9	867.6	925.4
Earnings before income taxes	243.3	234.8	220.9
Earnings after income taxes	190.3	186.7	170.7
Current assets	849.7	814.1
Noncurrent assets	858.9	959.9
Current liabilities	1,469.6	1,457.3
Noncurrent liabilities	55.2	81.7
Cereal Partners Worldwide [Member]
Schedule of Equity Method Investments [Line Items]
Net sales	1,648.4	1,674.8	1,894.5
Haagen Dazs Japan [Member]
Schedule of Equity Method Investments [Line Items]
Net sales	$ 435.1	$ 369.4	$ 370.2

Goodwill and Other Intangible55

Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
GOODWILL AND OTHER INTANGIBLE ASSETS [Abstract]
Future amortization expense, year one	$ 28
Future amortization expense, year two	28
Future amortization expense, year three	28
Future amortization expense, year four	28
Future amortization expense, year five	28
Goodwill impairment	0
Indefinite-lived intangible assets impairment	$ 0	$ 119.6	$ 260

Goodwill and Other Intangible56

Goodwill and Other Intangible Assets (Schedule of goodwill and other intangible assets) (Details) - USD ($) $ in Millions	May 28, 2017	May 29, 2016	May 31, 2015	May 25, 2014
GOODWILL AND OTHER INTANGIBLE ASSETS [Abstract]
Goodwill	$ 8,747.2	$ 8,741.2	$ 8,874.9	$ 8,650.5
Intangible assets not subject to amortization:
Brands and other indefinite-lived intangibles	4,161.1	4,147.5
Intangible assets subject to amortization:
Franchise agreements, customer relationships and other finite-lived intangibles	524.8	536.9
Less accumulated amortization	(155.5)	(145.8)
Intangible assets subject to amortization	369.3	391.1
Other intangible assets	4,530.4	4,538.6	$ 4,677	$ 5,014.3
Total goodwill and intangible assets	$ 13,277.6	$ 13,279.8

Goodwill and Other Intangible57

Goodwill and Other Intangible Assets (Schedule of changes in the carrying amount of goodwill) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Goodwill [Line Items]
Beginning balance	$ 8,741.2	$ 8,874.9	$ 8,650.5
Acquisitions		83.5	589.8
Divestitures	(2.3)	(186.4)
Other activity, primarily foreign currency translation	8.3	(30.8)	(365.4)
Ending balance	8,747.2	8,741.2	8,874.9
North America Retail [Member]
Goodwill [Line Items]
Beginning balance	6,410.3	6,546.2	5,975.1
Acquisitions		54.1	589.8
Divestitures	0	(184.5)
Other activity, primarily foreign currency translation	(3.8)	(5.5)	(18.7)
Ending balance	6,406.5	6,410.3	6,546.2
Convenience Stores and Foodservice [Member]
Goodwill [Line Items]
Beginning balance	921.1	921.1	921.1
Acquisitions		0	0
Divestitures	(2.3)	0
Other activity, primarily foreign currency translation	0	0	0
Ending balance	918.8	921.1	921.1
Europe and Australia [Member]
Goodwill [Line Items]
Beginning balance	716.5	719.1	866.1
Acquisitions		0	0
Divestitures	0	0
Other activity, primarily foreign currency translation	(15.7)	(2.6)	(147)
Ending balance	700.8	716.5	719.1
Asia and Latin America [Member]
Goodwill [Line Items]
Beginning balance	287.1	287	390
Acquisitions		29.4	0
Divestitures	0	(1.9)
Other activity, primarily foreign currency translation	25.3	(27.4)	(103)
Ending balance	312.4	287.1	287
Joint Ventures [Member]
Goodwill [Line Items]
Beginning balance	406.2	401.5	498.2
Acquisitions		0	0
Divestitures	0	0
Other activity, primarily foreign currency translation	2.5	4.7	(96.7)
Ending balance	$ 408.7	$ 406.2	$ 401.5

Goodwill and Other Intangible58

Goodwill and Other Intangible Assets (Schedule of changes in the carrying amount of other intangible assets) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Indefinite-lived Intangible Assets by Major Class [Line Items]
Beginning balance - carrying value	$ 4,538.6	$ 4,677	$ 5,014.3
Acquisitions		30.1	268.4
Impairment charge	0	(119.6)	(260)
Other activity, primarily amortization and foreign currency translation	(8.2)	(48.9)	(345.7)
Ending balance - carrying value	$ 4,530.4	$ 4,538.6	4,677
Green Giant [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Impairment charge			$ (260)

Goodwill and Other Intangible59

Goodwill and Other Intangible Assets (Schedule of at-risk brand intangible assets) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015	May 25, 2014
Indefinite-lived Intangible Assets by Major Class [Line Items]
Book value of indefinite-lived intangible assets	$ 4,530.4	$ 4,538.6	$ 4,677	$ 5,014.3
Latin America {Member}
Indefinite-lived Intangible Assets by Major Class [Line Items]
Book value of indefinite-lived intangible assets	$ 523
Excess Fair Value Above Carrying Value, Percentage	15.00%
Immaculate Baking Brand [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Book value of indefinite-lived intangible assets	$ 12
Excess Fair Value Above Carrying Value, Percentage	17.00%

Financial Instruments, Risk M60

Financial Instruments, Risk Management Activities, and Fair Values (Narrative) (Details) € in Millions, $ in Millions	1 Months Ended	3 Months Ended		12 Months Ended
	Jan. 31, 2017USD ($)	Feb. 26, 2017USD ($)	Feb. 28, 2016USD ($)	May 28, 2017USD ($)	May 29, 2016USD ($)	May 31, 2015USD ($)	May 28, 2017EUR (€)	May 28, 2017USD ($)
Financial Instruments Owned At Fair Value [Abstract]
Accounts receivable pledged as collateral								$ 19.6
Derivative [Line Items]
Long-term debt, carrying value					$ 8,161.1			8,247.6
Issuance of long-term debt				$ 1,072.1	542.5	$ 2,253.2
Gain (Loss) on Interest Rate Fair Value Hedge Ineffectiveness				$ 4.3		1.6
Foreign Exchange Risk [Abstract]
Maximum Length of Time, Foreign Currency Cash Flow Hedge				18 months
Deferred Net Foreign Currency Transaction Gains (Losses) AfterTax Accumulated Other Comprehensive Income								(39.1)
Accounts payable to suppliers who utilize third party service								639
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								11.7
Credit Risk Related Contingent Features [Abstract]
Aggregate fair value of derivative instruments in liability position								1
Additional collateral required to be posted under specific circumstances								1
Counterparty Credit Risk [Abstract]
Concentration Risk Credit Risk Financial Instrument Maximum Exposure				$ 5.8
Maximum [Member]
Derivative [Line Items]
Gain (Loss) on Interest Rate Cash Flow Hedge Ineffectiveness				1	(1)	(1)
Gain (Loss) on Interest Rate Fair Value Hedge Ineffectiveness					1
Foreign Exchange Risk [Abstract]
Gain (Loss) on Foreign Currency Cash Flow Hedge Ineffectiveness				$ 1	(1)	1
Venezuela [Member]
Foreign Exchange Risk [Abstract]
Foreign exchange gain (loss) from remeasurement						$ (8)
3.2% notes due February 10, 2027 [Member]
Derivative [Line Items]
Long-term debt, carrying value					0			$ 750
Derivative, Maturity Date				Feb. 10, 2027
Debt Instrument, Interest Rate, Stated Percentage							3.20%	3.20%
Debt Instrument Term				10 years
Debt Instrument, Maturity Date				Feb. 10, 2027
Issuance of long-term debt	$ 750	$ 750
1.4% notes due October 20, 2017 [Member]
Derivative [Line Items]
Long-term debt, carrying value					500			$ 500
Debt Instrument, Interest Rate, Stated Percentage						1.40%	1.40%	1.40%
Debt Instrument, Maturity Date				Oct. 20, 2017		Oct. 20, 2017
Face Amount						$ 500
2.2% notes due October 21, 2019 [Member]
Derivative [Line Items]
Long-term debt, carrying value					$ 500			$ 500
Debt Instrument, Interest Rate, Stated Percentage						2.20%	2.20%	2.20%
Debt Instrument, Maturity Date				Oct. 21, 2019		Oct. 21, 2019
Face Amount						$ 500
Euro-Denominated Bonds Used for Hedging [Member]
Derivative [Line Items]
Long-term debt, carrying value | €							€ 2,200
Commodity Contracts [Member]
Derivative [Line Items]
Derivative, Notional Amount								$ 410.3
Commodity Price Risk [Abstract]
Derivative Contacts Inputs, Average Period of Utilization				12 months
Agricultural Related Derivative [Member]
Derivative [Line Items]
Derivative, Notional Amount								289.6
Energy Related Derivative [Member]
Derivative [Line Items]
Derivative, Notional Amount								120.7
Treasury Lock [Member]
Derivative [Line Items]
Pre-tax amount of cash-settled interest rate hedge gain (loss)			$ 17.2
Treasury Lock One [Member]
Derivative [Line Items]
Derivative, Notional Amount		$ 100
Derivative, Average Fixed Interest Rate		2.00%
Derivative, Maturity Date		Feb. 15, 2017
Treasury Lock Two [Member]
Derivative [Line Items]
Derivative, Notional Amount		$ 400
Derivative, Average Fixed Interest Rate		2.00%
Derivative, Maturity Date		Feb. 15, 2017
Foreign Exchange Contracts [Member]
Derivative [Line Items]
Derivative, Notional Amount								850.2
Equity Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount								138.9
Derivative, Maturity Date				May 27, 2018
Level 2 [Member]
Derivative [Line Items]
Long-term debt, fair value								$ 8,547

Financial Instruments, Risk M61

Financial Instruments, Risk Management Activities, and Fair Values (Schedule of available for sale securities) (Details) - USD ($) $ in Millions	May 28, 2017	May 29, 2016
Schedule of Available-for-Sale Securities [Line Items]
Cost	$ 267.2	$ 167.5
Fair Value	275.4	174.2
Gross Gain	8.2	6.7
Gross Loss	0	0
Debt Securities [Member]
Schedule of Available-for-Sale Securities [Line Items]
Cost	265.4	165.7
Fair Value	265.5	165.8
Gross Gain	0.1	0.1
Gross Loss	0	0
Equity Securities [Member]
Schedule of Available-for-Sale Securities [Line Items]
Cost	1.8	1.8
Fair Value	9.9	8.4
Gross Gain	8.1	6.6
Gross Loss	$ 0	$ 0

Financial Instruments, Risk M62

Financial Instruments, Risk Management Activities, and Fair Values (Schedule of maturities of available for sale securities) (Details) - USD ($) $ in Millions	May 28, 2017	May 29, 2016
Schedule of Available-for-Sale Securities [Line Items]
Cost	$ 267.2	$ 167.5
Fair Value	275.4	174.2
Debt Securities [Member]
Schedule of Available-for-Sale Securities [Line Items]
Cost	265.4	165.7
Fair Value	265.5	165.8
Debt Securities [Member] | Available-for-Sale Securities Debt Maturities Within One Year [Member]
Schedule of Available-for-Sale Securities [Line Items]
Cost	265.4
Fair Value	265.5
Equity Securities [Member]
Schedule of Available-for-Sale Securities [Line Items]
Cost	1.8	1.8
Fair Value	$ 9.9	$ 8.4

Financial Instruments, Risk M63

Financial Instruments, Risk Management Activities, and Fair Values (Schedule of unallocated corporate items) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Commodity Price Risk [Abstract]
Net gain (loss) on mark-to-market valuation of commodity positions	$ (22)	$ (69.1)	$ (163.7)
Net loss (gain) on commodity positions reclassified from unallocated corporate items to segment operating profit	32	127.9	84.4
Net mark-to-market revaluation of certain grain inventories	3.9	4	(10.4)
Net mark-to-market valuation of certain commodity positions recognized in unallocated corporate items	$ 13.9	$ 62.8	$ (89.7)

Financial Instruments, Risk M64

Financial Instruments, Risk Management Activities, and Fair Values (Schedule of interest rate hedge in AOCI) (Details) $ in Millions	12 Months Ended
	May 28, 2017USD ($)
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ (23)
5.65% notes due February 15, 2019 [Member]
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ 0.8
Derivative, Maturity Date	Feb. 15, 2019
Debt Instrument, Interest Rate, Stated Percentage	5.65%
3.15% notes due December 15, 2021 [Member]
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ (45)
Derivative, Maturity Date	Dec. 15, 2021
Debt Instrument, Interest Rate, Stated Percentage	3.15%
1.0% notes due April 27, 2023 [Member]
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ (1.4)
Derivative, Maturity Date	Apr. 27, 2023
Debt Instrument, Interest Rate, Stated Percentage	1.00%
3.65% notes due February 15, 2024 [Member]
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ 12
Derivative, Maturity Date	Feb. 15, 2024
Debt Instrument, Interest Rate, Stated Percentage	3.65%
3.2% notes due February 10, 2027 [Member]
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ 16.6
Derivative, Maturity Date	Feb. 10, 2027
Debt Instrument, Interest Rate, Stated Percentage	3.20%
1.5% notes due April 27, 2027 [Member]
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ (3.2)
Derivative, Maturity Date	Apr. 27, 2027
Debt Instrument, Interest Rate, Stated Percentage	1.50%
5.4% notes due June 15, 2040 [Member]
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ (12.9)
Derivative, Maturity Date	Jun. 15, 2040
Debt Instrument, Interest Rate, Stated Percentage	5.40%
4.15% notes due February 15, 2043 [Member]
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ 10.1
Derivative, Maturity Date	Feb. 15, 2043
Debt Instrument, Interest Rate, Stated Percentage	4.15%

Financial Instruments, Risk M65

Financial Instruments, Risk Management Activities, and Fair Values (Schedule of interest rate derivatives) (Details) - Interest Rate Contracts [Member] - USD ($) $ in Millions	May 28, 2017	May 29, 2016
Derivative [Line Items]
Derivative, Notional Amount	$ 1,000	$ 1,000
Average Receive Rate	1.80%	1.80%
Average Pay Rate	1.60%	1.10%
Swap Contract Maturities, Year One	$ 500
Swap Contract Maturities, Year Three	500
Swap Contract Maturities, Total	$ 1,000

Financial Instruments, Risk M66

Financial Instruments, Risk Management Activities, and Fair Values (Schedule of offsetting assets and liabilities) (Details) - USD ($) $ in Millions		May 28, 2017	May 29, 2016
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets		$ 30.8	$ 40.7
Gross Liabilities Offset in the Balance Sheet	[1]	0	0
Net Amounts of Assets	[2]	30.8	40.7
Financial Instruments, Gross Amounts Not Offset in the Balance Sheet	[3]	(14.9)	(12.6)
Cash Collateral Received, Gross Amounts Not Offset in the Balance Sheet	[3]	0	0
Net Amount	[4]	15.9	28.1
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities		(18.9)	(38.9)
Gross Assets Offset in the Balance Sheet	[1]	0	0
Net Amounts of Liabilities	[2]	(18.9)	(38.9)
Financial Instruments, Gross Amounts Not Offset in the Balance Sheet	[3]	14.9	12.6
Cash Collateral Pledged, Gross Amounts Not Offset in the Balance Sheet	[3]	0	7.5
Net Amount	[5]	(4)	(18.8)
Commodity Contracts [Member]
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets		11.5	4.4
Gross Liabilities Offset in the Balance Sheet	[1]	0	0
Net Amounts of Assets	[2]	11.5	4.4
Financial Instruments, Gross Amounts Not Offset in the Balance Sheet	[3]	(7.2)	(3.9)
Cash Collateral Received, Gross Amounts Not Offset in the Balance Sheet	[3]	0	0
Net Amount	[4]	4.3	0.5
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities		(8.2)	(22.2)
Gross Assets Offset in the Balance Sheet	[1]	0	0
Net Amounts of Liabilities	[2]	(8.2)	(22.2)
Financial Instruments, Gross Amounts Not Offset in the Balance Sheet	[3]	7.2	3.9
Cash Collateral Pledged, Gross Amounts Not Offset in the Balance Sheet	[3]	0	7.5
Net Amount	[5]	(1)	(10.8)
Interest Rate Contracts [Member]
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets		0.9	8.5
Gross Liabilities Offset in the Balance Sheet	[1]	0	0
Net Amounts of Assets	[2]	0.9	8.5
Financial Instruments, Gross Amounts Not Offset in the Balance Sheet	[3]	(0.5)	0
Cash Collateral Received, Gross Amounts Not Offset in the Balance Sheet	[3]	0	0
Net Amount	[4]	0.4	8.5
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities		(0.5)	(3)
Gross Assets Offset in the Balance Sheet	[1]	0	0
Net Amounts of Liabilities	[2]	(0.5)	(3)
Financial Instruments, Gross Amounts Not Offset in the Balance Sheet	[3]	0.5	0
Cash Collateral Pledged, Gross Amounts Not Offset in the Balance Sheet	[3]	0	0
Net Amount	[5]	0	(3)
Foreign Exchange Contracts [Member]
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets		16.5	25.4
Gross Liabilities Offset in the Balance Sheet	[1]	0	0
Net Amounts of Assets	[2]	16.5	25.4
Financial Instruments, Gross Amounts Not Offset in the Balance Sheet	[3]	(7.2)	(8.7)
Cash Collateral Received, Gross Amounts Not Offset in the Balance Sheet	[3]	0	0
Net Amount	[4]	9.3	16.7
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities		(10.2)	(13.7)
Gross Assets Offset in the Balance Sheet	[1]	0	0
Net Amounts of Liabilities	[2]	(10.2)	(13.7)
Financial Instruments, Gross Amounts Not Offset in the Balance Sheet	[3]	7.2	8.7
Cash Collateral Pledged, Gross Amounts Not Offset in the Balance Sheet	[3]	0	0
Net Amount	[5]	(3)	(5)
Equity Contracts [Member]
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets		1.9	2.4
Gross Liabilities Offset in the Balance Sheet	[1]	0	0
Net Amounts of Assets	[2]	1.9	2.4
Financial Instruments, Gross Amounts Not Offset in the Balance Sheet	[3]	0	0
Cash Collateral Received, Gross Amounts Not Offset in the Balance Sheet	[3]	0	0
Net Amount	[4]	1.9	2.4
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities		0	0
Gross Assets Offset in the Balance Sheet	[1]	0	0
Net Amounts of Liabilities	[2]	0	0
Financial Instruments, Gross Amounts Not Offset in the Balance Sheet	[3]	0	0
Cash Collateral Pledged, Gross Amounts Not Offset in the Balance Sheet	[3]	0	0
Net Amount	[5]	$ 0	$ 0
[1]	Includes related collateral offset in our Consolidated Balance Sheets.
[2]	N et fair value as recorded in our C onsolidated B alance S heets.
[3]	Fair value of assets and liabilities reported on a gross basis in our Consolidated Balance Sheets.
[4]	Fair value of assets t hat could be reported net in our C onsolidated B alance S heets.
[5]	Fair value of liabilities that could be reported net in our Consolidated Balance Sheets.

Financial Instruments, Risk M67

Financial Instruments, Risk Management Activities, and Fair Values (Schedule of fair value measurement inputs) (Details) - USD ($) $ in Millions		12 Months Ended
		May 28, 2017		May 29, 2016
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value		$ 30.8		$ 40.7
Other Assets, Fair Value Disclosure		319.1		200.2
Total Assets, Fair Value Disclosure		350.5		239.4
Derivative Liability, Fair Value		(18.9)		(38.9)
Other Liabilities, Fair Value Disclosure		0		0
Total Liabilities, Fair Value Disclosure		(24.4)		(44.4)
Book value of long-lived assets		3,687.7		3,743.6
Long-Lived Assets [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure		43.7	[1]	26	[2]
Other Liabilities, Fair Value Disclosure		0	[1]	0	[2]
Non-cash impairment charge of long-lived assets		47.4		11.4
Book value of long-lived assets		91.1		28.2
Designated as Hedging Instrument [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value		17		19.9
Derivative Liability, Fair Value		(4)		(15.2)
Not Designated as Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value		14.4		19.3
Derivative Liability, Fair Value		(20.4)		(29.2)
Level 1 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure		9.9		8.4
Total Assets, Fair Value Disclosure		14		11
Other Liabilities, Fair Value Disclosure		0		0
Total Liabilities, Fair Value Disclosure		(3.4)		(0.6)
Level 1 [Member] | Long-Lived Assets [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure		0	[1]	0	[2]
Other Liabilities, Fair Value Disclosure		0	[1]	0	[2]
Level 1 [Member] | Designated as Hedging Instrument [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value		0		0
Derivative Liability, Fair Value		0		0
Level 1 [Member] | Not Designated as Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value		4.1		2.6
Derivative Liability, Fair Value		(3.4)		(0.6)
Level 2 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure		309.2		191.8
Total Assets, Fair Value Disclosure		336.5		228.4
Other Liabilities, Fair Value Disclosure		0		0
Total Liabilities, Fair Value Disclosure		(21)		(43.8)
Level 2 [Member] | Long-Lived Assets [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure		43.7	[1]	26	[2]
Other Liabilities, Fair Value Disclosure		0	[1]	0	[2]
Level 2 [Member] | Designated as Hedging Instrument [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value		17		19.9
Derivative Liability, Fair Value		(4)		(15.2)
Level 2 [Member] | Not Designated as Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value		10.3		16.7
Derivative Liability, Fair Value		(17)		(28.6)
Level 3 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure		0		0
Total Assets, Fair Value Disclosure		0		0
Other Liabilities, Fair Value Disclosure		0		0
Total Liabilities, Fair Value Disclosure		0		0
Level 3 [Member] | Long-Lived Assets [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure		0	[1]	0	[2]
Other Liabilities, Fair Value Disclosure		0	[1]	0	[2]
Level 3 [Member] | Designated as Hedging Instrument [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value		0		0
Derivative Liability, Fair Value		0		0
Level 3 [Member] | Not Designated as Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value		0		0
Derivative Liability, Fair Value		0		0
Marketable Investments [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	[3],[4]	275.4		174.2
Other Liabilities, Fair Value Disclosure	[3],[4]	0		0
Marketable Investments [Member] | Level 1 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	[3],[4]	9.9		8.4
Other Liabilities, Fair Value Disclosure	[3],[4]	0		0
Marketable Investments [Member] | Level 2 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	[3],[4]	265.5		165.8
Other Liabilities, Fair Value Disclosure	[3],[4]	0		0
Marketable Investments [Member] | Level 3 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	[3],[4]	0		0
Other Liabilities, Fair Value Disclosure	[3],[4]	0		0
Interest Rate Contracts [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value		0.9		8.5
Derivative Liability, Fair Value		(0.5)		(3)
Interest Rate Contracts [Member] | Designated as Hedging Instrument [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[4],[5]	0.7		7.7
Derivative Liability, Fair Value	[4],[5]	(0.4)		(3)
Interest Rate Contracts [Member] | Level 1 [Member] | Designated as Hedging Instrument [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[4],[5]	0		0
Derivative Liability, Fair Value	[4],[5]	0		0
Interest Rate Contracts [Member] | Level 2 [Member] | Designated as Hedging Instrument [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[4],[5]	0.7		7.7
Derivative Liability, Fair Value	[4],[5]	(0.4)		(3)
Interest Rate Contracts [Member] | Level 3 [Member] | Designated as Hedging Instrument [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[4],[5]	0		0
Derivative Liability, Fair Value	[4],[5]	0		0
Foreign Exchange Contracts [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value		16.5		25.4
Derivative Liability, Fair Value		(10.2)		(13.7)
Foreign Exchange Contracts [Member] | Designated as Hedging Instrument [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[6],[7]	16.3		12.2
Derivative Liability, Fair Value	[6],[7]	(3.6)		(12.2)
Foreign Exchange Contracts [Member] | Not Designated as Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[6],[7]	0.2		13.2
Derivative Liability, Fair Value	[6],[7]	(6.6)		(1.5)
Foreign Exchange Contracts [Member] | Level 1 [Member] | Designated as Hedging Instrument [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[6],[7]	0		0
Derivative Liability, Fair Value	[6],[7]	0		0
Foreign Exchange Contracts [Member] | Level 1 [Member] | Not Designated as Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[6],[7]	0		0
Derivative Liability, Fair Value	[6],[7]	0		0
Foreign Exchange Contracts [Member] | Level 2 [Member] | Designated as Hedging Instrument [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[6],[7]	16.3		12.2
Derivative Liability, Fair Value	[6],[7]	(3.6)		(12.2)
Foreign Exchange Contracts [Member] | Level 2 [Member] | Not Designated as Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[6],[7]	0.2		13.2
Derivative Liability, Fair Value	[6],[7]	(6.6)		(1.5)
Foreign Exchange Contracts [Member] | Level 3 [Member] | Designated as Hedging Instrument [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[6],[7]	0		0
Derivative Liability, Fair Value	[6],[7]	0		0
Foreign Exchange Contracts [Member] | Level 3 [Member] | Not Designated as Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[6],[7]	0		0
Derivative Liability, Fair Value	[6],[7]	0		0
Commodity Contracts [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value		11.5		4.4
Derivative Liability, Fair Value		(8.2)		(22.2)
Commodity Contracts [Member] | Not Designated as Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[7],[8]	11.5		4.3
Derivative Liability, Fair Value	[7],[8]	(8.2)		(22.2)
Commodity Contracts [Member] | Level 1 [Member] | Not Designated as Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[7],[8]	4.1		2.6
Derivative Liability, Fair Value	[7],[8]	(3.4)		(0.6)
Commodity Contracts [Member] | Level 2 [Member] | Not Designated as Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[7],[8]	7.4		1.7
Derivative Liability, Fair Value	[7],[8]	(4.8)		(21.6)
Commodity Contracts [Member] | Level 3 [Member] | Not Designated as Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[7],[8]	0		0
Derivative Liability, Fair Value	[7],[8]	0		0
Grain Contracts [Member] | Not Designated as Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[7],[8]	2.7		1.8
Derivative Liability, Fair Value	[7],[8]	(5.6)		(5.5)
Grain Contracts [Member] | Level 1 [Member] | Not Designated as Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[7],[8]	0		0
Derivative Liability, Fair Value	[7],[8]	0		0
Grain Contracts [Member] | Level 2 [Member] | Not Designated as Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[7],[8]	2.7		1.8
Derivative Liability, Fair Value	[7],[8]	(5.6)		(5.5)
Grain Contracts [Member] | Level 3 [Member] | Not Designated as Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative Asset, Fair Value	[7],[8]	0		0
Derivative Liability, Fair Value	[7],[8]	$ 0		$ 0
[1]	We recorded $47.4 million in non-cash impairment charges in fiscal 2017 to write down certain long-lived assets to their fair value. Fair value was based on recently reported transactions for similar assets in the marketplace. These asse ts had a carrying value of $91.1 million and were associated with the restructuring actions described in Note 4.
[2]	We reco rded $11.4 million in non-cash impairment charges in fiscal 2016 to write down certain long-lived assets to their fair value. Fair value was based on recently reported transactions for similar assets in the marketplace. These assets had a carrying value of $28.2 million and were associated with the restructuring actions described in Note 4.
[3]	Based on prices of common stock and bond matrix pricing.
[4]	These contracts and investments are recorded as prepaid expenses and other current assets, other assets, other current liabilities or other liabilities, as appropriate, based on whether in a gain or loss position. Certain marketable investments are recorded as cash and cash equivalents.
[5]	Based on LIBOR and swap rates.
[6]	Based on observable market transactions of spot currency rates and forward currency prices.
[7]	These contracts are recorded as prepaid expenses and other current assets, other assets, other current liabilities or other liabilities, as appropriate, based on whether in a gain or loss position.
[8]	Based on prices of futures exchanges and recently reported transactions in the marketplace.

Financial Instruments, Risk M68

Financial Instruments, Risk Management Activities, and Fair Values (Schedule of gains and losses on hedges) (Details) - USD ($) $ in Millions		12 Months Ended
		May 28, 2017	May 29, 2016
Cash Flow Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	$ 70.3	$ 18.6
Amount of net gain (loss) reclassified from AOCI into earnings	[1],[2]	28.8	11.5
Amount of net gain (loss) recognized in earnings	[3]	0.7	(0.8)
Fair Value Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	4.3	0.1
Net Investment Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	0	(0.2)
Not Designated as Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	9.2	(59.5)
Interest Rate Contracts [Member] | Cash Flow Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	24	(2.6)
Amount of net gain (loss) reclassified from AOCI into earnings	[1],[2]	(5)	(10.6)
Amount of net gain (loss) recognized in earnings	[3]	0.1	(0.1)
Interest Rate Contracts [Member] | Fair Value Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	4.3	0.1
Interest Rate Contracts [Member] | Net Investment Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	0	0
Interest Rate Contracts [Member] | Not Designated as Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	0	0
Foreign Exchange Contracts [Member] | Cash Flow Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	46.3	21.2
Amount of net gain (loss) reclassified from AOCI into earnings	[1],[2]	33.8	22.1
Amount of net gain (loss) recognized in earnings	[3]	0.6	(0.7)
Foreign Exchange Contracts [Member] | Fair Value Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	0	0
Foreign Exchange Contracts [Member] | Net Investment Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	0	(0.2)
Foreign Exchange Contracts [Member] | Not Designated as Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	7.6	1.1
Equity Contracts [Member] | Cash Flow Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	0	0
Amount of net gain (loss) reclassified from AOCI into earnings	[1],[2]	0	0
Amount of net gain (loss) recognized in earnings	[3]	0	0
Equity Contracts [Member] | Fair Value Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	0	0
Equity Contracts [Member] | Net Investment Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	0	0
Equity Contracts [Member] | Not Designated as Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	17.8	(4.5)
Commodity Contracts [Member] | Cash Flow Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	0	0
Amount of net gain (loss) reclassified from AOCI into earnings	[1],[2]	0	0
Amount of net gain (loss) recognized in earnings	[3]	0	0
Commodity Contracts [Member] | Fair Value Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	0	0
Commodity Contracts [Member] | Net Investment Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	0	0
Commodity Contracts [Member] | Not Designated as Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	$ (16.2)	$ (56.1)
[1]	Effective portion.
[2]	Gain (loss) reclassified from AOCI into earnings is reported in interest, net for interest rate swaps and in cost of sales and SG&A expenses for foreign exchange contracts.
[3]	Gain (loss) recognized in earnings is related to the ineffective portion of the hedging relationship, including SG&A expenses for foreign exchange contracts and interest, net for interest rate contracts. No amounts were reported as a result of being excluded from the assessment of hedge effectiveness.
[4]	Gain (loss) recognized in earnings is reported in interest, net for interest rate contracts, in cost of sales for commodity contracts, and in SG&A expenses for equity contracts and foreign exchange contracts.

Financial Instruments, Risk M69

Financial Instruments, Risk Management Activities, and Fair Values (Schedule of cashflow hedge in AOCI) (Details) - USD ($) $ in Millions	May 28, 2017	May 29, 2016
Derivative [Line Items]
After-tax gain (loss) in AOCI related to hedge derivatives	$ 1.5	$ (25.5)
Interest Rate Contracts [Member]
Derivative [Line Items]
After-tax gain (loss) in AOCI related to hedge derivatives	(12.9)
Foreign Exchange Contracts [Member]
Derivative [Line Items]
After-tax gain (loss) in AOCI related to hedge derivatives	$ 14.4

Financial Instruments, Risk M70

Financial Instruments, Risk Management Activities, and Fair Values (Concentrations table) (Details)	12 Months Ended
	May 28, 2017
Net Sales [Member] | Wal-Mart [Member]
Product Information [Line Items]
Concentration Risk Percentage	20.00%
Net Sales [Member] | Wal-Mart [Member] | North America Retail [Member]
Product Information [Line Items]
Concentration Risk Percentage	29.00%
Net Sales [Member] | Wal-Mart [Member] | Convenience Stores and Foodservice Segment [Member]
Product Information [Line Items]
Concentration Risk Percentage	7.00%
Net Sales [Member] | Wal-Mart [Member] | Europe and Australia [Member]
Product Information [Line Items]
Concentration Risk Percentage	2.00%
Net Sales [Member] | Wal-Mart [Member] | Asia and Latin America [Member]
Product Information [Line Items]
Concentration Risk Percentage	4.00%
Net Sales [Member] | Five Largest Customers [Member] | North America Retail [Member]
Product Information [Line Items]
Concentration Risk Percentage	52.00%
Net Sales [Member] | Five Largest Customers [Member] | Convenience Stores and Foodservice Segment [Member]
Product Information [Line Items]
Concentration Risk Percentage	48.00%
Net Sales [Member] | Five Largest Customers [Member] | Europe and Australia [Member]
Product Information [Line Items]
Concentration Risk Percentage	31.00%
Net Sales [Member] | Five Largest Customers [Member] | Asia and Latin America [Member]
Product Information [Line Items]
Concentration Risk Percentage	10.00%
Accounts Receivable [Member] | Wal-Mart [Member] | North America Retail [Member]
Product Information [Line Items]
Concentration Risk Percentage	24.00%
Accounts Receivable [Member] | Wal-Mart [Member] | Convenience Stores and Foodservice Segment [Member]
Product Information [Line Items]
Concentration Risk Percentage	8.00%
Accounts Receivable [Member] | Wal-Mart [Member] | Europe and Australia [Member]
Product Information [Line Items]
Concentration Risk Percentage	1.00%
Accounts Receivable [Member] | Wal-Mart [Member] | Asia and Latin America [Member]
Product Information [Line Items]
Concentration Risk Percentage	4.00%

Debt (Narrative) (Details)

Debt (Narrative) (Details) € in Millions, $ in Millions	1 Months Ended							3 Months Ended	12 Months Ended
	Mar. 31, 2017EUR (€)	Feb. 28, 2017USD ($)	Jan. 31, 2017USD ($)	Jan. 31, 2016EUR (€)	Jan. 31, 2016USD ($)	Apr. 30, 2015EUR (€)	Mar. 31, 2015USD ($)	Feb. 26, 2017USD ($)	May 28, 2017USD ($)	May 29, 2016USD ($)	May 31, 2015USD ($)
Debt Instrument [Line Items]
Issuance of long-term debt									$ 1,072.1	$ 542.5	$ 2,253.2
Repayment of long-term debt									1,000	$ 1,000.4	$ 1,145.8
Pre-tax hedge gain (loss) in AOCI									(23)
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net									(6.7)
Long-term Debt and Capital Lease Obligations, Repayments of Principal in Next Twelve Months									604.7
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Two									1,585.9
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Three									1,062.5
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Four									559.4
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Five									$ 1,001.1
Floating-Rate Notes Due March 2019 [Member]
Debt Instrument [Line Items]
Issuance of long-term debt | €	€ 300
Maturity date									Mar. 20, 2019
5.7% notes due February 15, 2017 [Member]
Debt Instrument [Line Items]
Maturity date									Feb. 15, 2017
Debt Instrument, Interest Rate, Stated Percentage		5.70%							5.70%
Repayment of long-term debt		$ 1,000
3.2% notes due February 10, 2027 [Member]
Debt Instrument [Line Items]
Issuance of long-term debt			$ 750					$ 750
Maturity date									Feb. 10, 2027
Debt Instrument, Interest Rate, Stated Percentage									3.20%
Pre-tax hedge gain (loss) in AOCI									$ 16.6
Euro-denominated floating-rate notes due January 15, 2020 [Member]
Debt Instrument [Line Items]
Issuance of long-term debt | €				€ 500
Maturity date									Jan. 15, 2020
0.875% Notes Due January 29, 2016 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				0.875%	0.875%
Repayment of long-term debt					$ 250
Floating-rate notes due January 28, 2016 [Member]
Debt Instrument [Line Items]
Repayment of long-term debt					$ 750
Euro-denominated 1.0% notes due April 27, 2023 [Member]
Debt Instrument [Line Items]
Issuance of long-term debt | €						€ 500
Maturity date									Apr. 27, 2023
Debt Instrument, Interest Rate, Stated Percentage									1.00%
Pre-tax hedge gain (loss) in AOCI									$ (1.4)
Euro-denominated 1.5% notes due April 27, 2027 [Member]
Debt Instrument [Line Items]
Issuance of long-term debt | €						€ 400
Maturity date									Apr. 27, 2027
Debt Instrument, Interest Rate, Stated Percentage									1.50%
Pre-tax hedge gain (loss) in AOCI									$ (3.2)
5.2% Notes Due March 17, 2015 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							5.20%
Repayment of long-term debt							$ 750
Long-term Debt Agreements Containing Restrictive Covenants [Member]
Debt Instrument [Line Items]
Covenant compliance									As of fiscal year end, we were in compliance with all of these covenants.

Debt (Schedule of short-term de

Debt (Schedule of short-term debt) (Details) - USD ($) $ in Millions	May 28, 2017	May 29, 2016
Short-term Debt [Line Items]
Notes payable	$ 1,234.1	$ 269.8
Weighted Average Interest Rate	2.40%	8.60%
Commercial Paper [Member]
Short-term Debt [Line Items]
Notes payable	$ 954.7	$ 0
Weighted Average Interest Rate	1.10%	0.00%
Financial Institutions [Member]
Short-term Debt [Line Items]
Notes payable	$ 279.4	$ 269.8
Weighted Average Interest Rate	7.00%	8.60%

Debt (Schedule of credit facili

Debt (Schedule of credit facilities) (Details) $ in Billions	12 Months Ended
	May 28, 2017USD ($)
Line of Credit Facility [Line Items]
Facility Amount	$ 3.4
Borrowed Amount	0.2
Committed Credit Facilities [Member]
Line of Credit Facility [Line Items]
Facility Amount	2.9
Borrowed Amount	$ 0.1
Minimum fixed charge coverage ratio	2.5
Compliance with credit facility covenants	As of fiscal year end, we were in compliance with all credit facility covenants.
Line of Credit Expiring May 2022 [Member]
Line of Credit Facility [Line Items]
Facility Amount	$ 2.7
Borrowed Amount	$ 0
Expiration date of credit facility	May 31, 2022
Line of Credit Expiring June 2019 [Member]
Line of Credit Facility [Line Items]
Facility Amount	$ 0.2
Borrowed Amount	$ 0.1
Expiration date of credit facility	Jun. 30, 2019
Uncommitted Credit Facility [Member]
Line of Credit Facility [Line Items]
Facility Amount	$ 0.5
Borrowed Amount	$ 0.1

Debt (Schedule of long-term deb

Debt (Schedule of long-term debt) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 31, 2015	Feb. 28, 2017	May 29, 2016
Debt Instrument [Line Items]
Long-term debt, including current portion	$ 8,247.6			$ 8,161.1
Other, including debt issuance costs and capital leases	(39.8)			(26.1)
Current portion of long-term debt	(604.7)			(1,103.4)
Total long-term debt	$ 7,642.9			7,057.7
5.65% notes due February 15, 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.65%
Maturity date	Feb. 15, 2019
Long-term debt, including current portion	$ 1,150			1,150
5.7% notes due February 15, 2017 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.70%		5.70%
Maturity date	Feb. 15, 2017
Long-term debt, including current portion	$ 0			1,000
3.15% notes due December 15, 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.15%
Maturity date	Dec. 15, 2021
Long-term debt, including current portion	$ 1,000			1,000
3.2% notes due February 10, 2027 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.20%
Maturity date	Feb. 10, 2027
Long-term debt, including current portion	$ 750			0
Euro-denominated 2.1% notes due November 16, 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.10%
Maturity date	Nov. 16, 2020
Long-term debt, including current portion	$ 559.2			555.8
Euro-denominated 1.0% notes due April 27, 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.00%
Maturity date	Apr. 27, 2023
Long-term debt, including current portion	$ 559.2			555.8
Euro-denominated floating-rate notes due January 15, 2020 [Member]
Debt Instrument [Line Items]
Maturity date	Jan. 15, 2020
Long-term debt, including current portion	$ 559.2			555.8
1.4% notes due October 20, 2017 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.40%	1.40%
Maturity date	Oct. 20, 2017	Oct. 20, 2017
Long-term debt, including current portion	$ 500			500
5.4% notes due June 15, 2040 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.40%
Maturity date	Jun. 15, 2040
Long-term debt, including current portion	$ 500			500
4.15% notes due February 15, 2043 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.15%
Maturity date	Feb. 15, 2043
Long-term debt, including current portion	$ 500			500
3.65% notes due February 15, 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.65%
Maturity date	Feb. 15, 2024
Long-term debt, including current portion	$ 500			500
2.2% notes due October 21, 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.20%	2.20%
Maturity date	Oct. 21, 2019	Oct. 21, 2019
Long-term debt, including current portion	$ 500			500
Euro-denominated 1.5% notes due April 27, 2027 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.50%
Maturity date	Apr. 27, 2027
Long-term debt, including current portion	$ 447.3			444.6
Euro-denominated floating-rate notes due March 20, 2019 [Member]
Debt Instrument [Line Items]
Maturity date	Mar. 20, 2019
Long-term debt, including current portion	$ 335.5			0
Euro-denominated 2.2% notes due June 24, 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.20%
Maturity date	Jun. 24, 2021
Long-term debt, including current portion	$ 222.8			221
Medium-term Notes [Member]
Debt Instrument [Line Items]
Long-term debt, including current portion	$ 204.2			$ 204.2
Medium-term Notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	0.02%
Medium-term Notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.59%

Redeemable and Noncontrolling75

Redeemable and Noncontrolling Interests (Details) $ in Millions	12 Months Ended
	May 28, 2017USD ($)subsidiaries	May 29, 2016USD ($)	May 31, 2015USD ($)	May 25, 2014USD ($)	Jul. 01, 2011USD ($)
REDEEMABLE AND NONCONTROLLING INTERESTS [Abstract]
Number of other noncontrolling interests | subsidiaries	4
Other noncontrolling interests	$ 8.5
Noncontrolling Interest [Line Items]
Redeemable interest value	910.9	$ 845.6
Noncontrolling interests	357.6	376.9
Dividends paid under the terms of shareholder agreements	$ 61	84.3	$ 25
Noncontrolling interests covenant compliancee	Our noncontrolling interests contain restrictive covenants. As of fiscal year end, we were in compliance with all of these covenants.
Yoplait SAS Subsidiary [Member]
Noncontrolling Interest [Line Items]
Net purchases from related party	$ 186.4	321
Yoplait SAS and Yoplait Marques SNC [Member]
Noncontrolling Interest [Line Items]
Dividends paid under the terms of shareholder agreements	48.6	74.5
General Mills Cereals LLC [Member] | Preferred Class A [Member] | Third Party Interest Holder [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interest holders capital account, General Mills Cereals, LLC	$ 251.5
Preferred distributions, variable rate	three-month LIBOR
Preferred distributions, basis spread on variable rate	1.25%
Preferred return rate adjustment period	3 years
General Mills [Member] | Yoplait SAS [Member]
Noncontrolling Interest [Line Items]
Ownership interest percentage in consolidated subsidiary	51.00%
General Mills [Member] | Yoplait Marques SNC [Member]
Noncontrolling Interest [Line Items]
Ownership interest percentage in consolidated subsidiary	50.00%
General Mills [Member] | Liberte Marques Sarl [Member]
Noncontrolling Interest [Line Items]
Ownership interest percentage in consolidated subsidiary	50.00%
Sodiaal International Redeemable Interest [Member]
Noncontrolling Interest [Line Items]
Redeemable interest value	$ 910.9	$ 845.6	$ 778.9	$ 984.1
Sodiaal International Redeemable Interest [Member] | Yoplait SAS [Member]
Noncontrolling Interest [Line Items]
Redeemable interest value	$ 910.9				$ 904.4
Redeemable interest percentage	49.00%
Redeemable interest terms	Sodiaal has the ability to put all or a portion of its redeemable interest to us at fair value once per year, up to three times before December 2024.
Sodiaal International Noncontrolling Interest [Member] | Yoplait Marques SNC and Liberte Marques Sarl [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests					$ 281.4
Sodiaal International Noncontrolling Interest [Member] | Yoplait Marques SNC [Member]
Noncontrolling Interest [Line Items]
Ownership interest percentage held by noncontrolling owners	50.00%
Sodiaal International Noncontrolling Interest [Member] | Liberte Marques Sarl [Member]
Noncontrolling Interest [Line Items]
Ownership interest percentage held by noncontrolling owners	50.00%

Stockholders' Equity (Narrative

Stockholders' Equity (Narrative) (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Cummulative preference stock, shared authorized	5
Number of shares of common stock authorized for repurchase	100
Shares purchased	25.4	10.7	22.3
Aggregate purchase price	$ 1,651.5	$ 606.7	$ 1,161.9

Stockholders' Equity (Schedule

Stockholders' Equity (Schedule of total comprehensive income) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	May 28, 2017	Feb. 26, 2017	Nov. 27, 2016	Aug. 28, 2016	May 29, 2016	Feb. 28, 2016	Nov. 29, 2015	Aug. 30, 2015	May 28, 2017		May 29, 2016		May 31, 2015
Other comprehensive income (loss), net of tax:
Foreign currency translation									$ 6.3		$ (108.7)		$ (957.9)
Net actuarial income (loss)									197.9		(325.9)		(358.4)
Other fair value changes:
Securities									0.8		0.1		0.8
Hedge derivatives									53.3		16		4.1
Reclassification to earnings:
Hedge derivatives									(25.7)		(9.5)		4.9
Amortization of losses and prior service costs									122.5		128.6		105.1
Other comprehensive income (loss), net of tax									355.1		(299.4)		(1,201.4)
Comprehensive Income:
Net earnings attributable to General Mills	$ 408.9	$ 357.8	$ 481.8	$ 409	$ 379.6	$ 361.7	$ 529.5	$ 426.6	1,657.5		1,697.4		1,221.3
Net earnings attributable to redeemable and noncontrolling interests									43.6		39.4		38.1
Total comprehensive income (loss) attributable to General Mills									2,025.2		1,395.9		250.9
General Mills [Member]
Other comprehensive income (loss), before tax:
Foreign currency translation									19.5		(107.6)		(727.9)
Net actuarial income (loss)									307.3		(514.2)		(561.1)
Other fair value chages:
Securities									1.3		0.2		1.3
Hedge derivaties									65.9		16.5		13.6
Reclassification to earnings:
Hedge derivatives									(25.2)	[1]	(13.5)	[2]	0.7	[3]
Amortization of losses and prior service costs									197.2	[4]	206.8	[5]	170.2	[6]
Other comprehensive income (loss), before tax									566		(411.8)		(1,103.2)
Other comprehensive income (loss), tax:
Foreign currency translation									0		0		0
Net actuarial income (loss)									(109.4)		188.3		202.7
Other fair value changes:
Securities									(0.5)		(0.1)		(0.5)
Hedge derivatives									(16.1)		(2.2)		(4.8)
Reclassification to earnings:
Hedge derivatives									2.4	[1]	2.5	[2]	0.5	[3]
Amortization of losses and prior service costs									(74.7)	[4]	(78.2)	[5]	(65.1)	[6]
Other comprehensive income (loss), tax									(198.3)		110.3		132.8
Other comprehensive income (loss), net of tax:
Foreign currency translation									19.5		(107.6)		(727.9)
Net actuarial income (loss)									197.9		(325.9)		(358.4)
Other fair value changes:
Securities									0.8		0.1		0.8
Hedge derivatives									49.8		14.3		8.8
Reclassification to earnings:
Hedge derivatives									(22.8)	[1]	(11)	[2]	1.2	[3]
Amortization of losses and prior service costs									122.5	[4]	128.6	[5]	105.1	[6]
Other comprehensive income (loss), net of tax									367.7		(301.5)		(970.4)
Comprehensive Income:
Net earnings attributable to General Mills									1,657.5		1,697.4		1,221.3
Total comprehensive income (loss) attributable to General Mills									2,025.2		1,395.9		250.9
Noncontrolling Interests [Member]
Other comprehensive income (loss), net of tax:
Foreign currency translation									2.5		2.8		(78.2)
Net actuarial income (loss)									0		0		0
Other fair value changes:
Securities									0		0		0
Hedge derivatives									0		0		0
Reclassification to earnings:
Hedge derivatives									0	[1]	0	[2]	0	[3]
Amortization of losses and prior service costs									0	[4]	0	[5]	0	[6]
Other comprehensive income (loss), net of tax									2.5		2.8		(78.2)
Comprehensive Income:
Net earnings attributable to redeemable and noncontrolling interests									11.3		8.4		8.2
Total comprehensive income (loss) attributable to noncontrolling interests									13.8		11.2		(70)
Redeemable Interest [Member]
Other comprehensive income (loss), net of tax:
Foreign currency translation									(15.7)		(3.9)		(151.8)
Net actuarial income (loss)									0		0		0
Other fair value changes:
Securities									0		0		0
Hedge derivatives									3.5		1.7		(4.7)
Reclassification to earnings:
Hedge derivatives									(2.9)	[1]	1.5	[2]	3.7	[3]
Amortization of losses and prior service costs									0	[4]	0	[5]	0	[6]
Other comprehensive income (loss), net of tax									(15.1)		(0.7)		(152.8)
Comprehensive Income:
Net earnings attributable to redeemable and noncontrolling interests									32.3		31		29.9
Total comprehensive income (loss) attributable to redeemable interests									$ 17.2		$ 30.3		$ (122.9)
[1]	Gain reclassified from AOCI into earnings is reported in interest, net for interest rate swaps and in cost of sales and SG&A expenses for foreign exchange contracts.
[2]	Gain reclassified from AOCI into earnings is reported in interest, net for interest rate swaps and in cost of sales and SG&A expenses for foreign exchange contracts.
[3]	Loss reclassified from AOCI into earnings is reported in interest, net for interest rate swaps and in cost of sales and SG&A expenses for foreign exchange contracts.
[4]	Loss reclassified from AOCI into earnings is reported in SG&A expense s .
[5]	Loss reclassified from AOCI into earnings is reported in SG&A expense s .
[6]	Loss reclassified from AOCI into earnings is reported in SG&A expense s .

Stockholders' Equity (Schedul78

Stockholders' Equity (Schedule of accumulated other comprehensive loss balances, net of taxes) (Details) - USD ($) $ in Millions	May 28, 2017	May 29, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax:
Foreign currency translation adjustments	$ (624.7)	$ (644.2)
Unrealized gain (loss) from:
Securities	4.6	3.8
Hedge derivatives	1.5	(25.5)
Pension, other postretirement, and postemployment benefits:
Net actuarial gain (loss)	(1,645.4)	(1,958.2)
Prior service (costs) credits	19.5	11.9
Accumulated other comprehensive loss	$ (2,244.5)	$ (2,612.2)

Stock Plans (Narrative) (Detail

Stock Plans (Narrative) (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant under stock compensation plan	20.3
Fair Value Assumptions Method Used	We estimate the fair value of each option on the grant date using a Black-Scholes option-pricing model, which requires us to make predictive assumptions regarding future stock price volatility, employee exercise behavior, dividend yield, and the forfeiture rate. We estimate our future stock price volatility using the historical volatility over the expected term of the option, excluding time periods of volatility we believe a marketplace participant would exclude in estimating our stock price volatility. We also have considered, but did not use, implied volatility in our estimate, because trading activity in options on our stock, especially those with tenors of greater than 6 months, is insufficient to provide a reliable measure of expected volatility.
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Unrecognized compensation expense related to non-vested stock options and restricted stock units	$ 98.1
Unrecognized compensation expense on non-vested awards, weighted average period of recognition	1 year 6 months
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum option pricing percentage of market price	100.00%
Award vesting period	4 years
Expiration period	10 years 1 month
Compensation expense related to stock-based payments	$ 18	$ 14.8	$ 18.1
2011 Stock Compensation Plan [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Compensation expense related to stock-based payments	$ 77.9	76.8	$ 96.6
Total grant-date fair value of restricted stock units that vested in period	$ 78.1	$ 101.8
2011 Stock Compensation Plan [Member] | Performance Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period	3 years

Stock Plans (Schedule of estima

Stock Plans (Schedule of estimated fair value of stock options granted and assumptions used for Black-Scholes option-pricing model) (Details) - $ / shares	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
STOCK PLANS [Abstract]
Estimated fair values of stock options granted	$ 8.8	$ 7.24	$ 7.22
Assumptions:
Risk-free interest rate	1.70%	2.40%	2.60%
Expected term	8 years 6 months	8 years 6 months	8 years 6 months
Expected volatility	17.80%	17.60%	17.50%
Dividend yield	2.90%	3.20%	3.10%

Stock Plans (Schedule of inform

Stock Plans (Schedule of information on stock option activity) (Details) - $ / shares	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Options (Thousands) [Abstract]
Balance Outstanding Beginning Balance	32,401,600	39,077,200	44,169,000
Granted	2,446,000	1,930,200	2,253,100
Exercised	(4,904,900)	(8,471,000)	(7,297,200)
Forfeited or expired	(108,300)	(134,800)	(47,700)
Balance Outstanding Ending Balance	29,834,400	32,401,600	39,077,200
Balance Exercisable Beginning Balance	22,385,100	26,991,500	29,452,800
Balance Exercisable Ending Balance	20,899,200	22,385,100	26,991,500
Weighted Average Exercise Price [Abstract]
Balance Outstanding Beginning Balance	$ 37.09	$ 34.35	$ 32.1
Granted	66.52	55.72	53.7
Exercised	30.76	28.49	26.68
Forfeited or expired	57.52	48.16	43.73
Balance Outstanding Ending Balance	40.47	37.09	34.35
Balance Exercisable Beginning Balance	32.38	30.44	28.37
Balance Exercisable Ending Balance	$ 33.83	$ 32.38	$ 30.44

Stock Plans (Schedule of net ca

Stock Plans (Schedule of net cash proceeds from exercise of stock options less shares used for withholding taxes and & intrinsic value of options exercised) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
STOCK PLANS [Abstract]
Net cash proceeds	$ 112.6	$ 171.9	$ 163.7
Intrinsic value of options exercised	$ 176.5	$ 268.4	$ 201.9

Stock Plans (Schedule of info83

Stock Plans (Schedule of information on restricted stock unit and cash-settled share-based units activity) (Details) - 2011 Stock Compensation Plan [Member] - $ / shares	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Share Settled Units (Thousands) [Abstract]
Granted	1,462,300	1,351,500	1,708,200
Weighted Average Grant-Date Fair Value [Abstract]
Granted	$ 67.01	$ 56	$ 53.45
Equity Classified [Member]
Share Settled Units (Thousands) [Abstract]
Non-vested Beginning Balance	5,100,400
Granted	1,418,700
Vested	(1,710,300)
Forfeited, expired, or reclassified	(317,600)
Non-vested Ending Balance	4,491,200	5,100,400
Weighted Average Grant-Date Fair Value [Abstract]
Non-vested Beginning Balance	$ 48.6
Granted	67.02
Vested	42.5
Forfeited, expired, or reclassified	57.96
Non-vested Ending Balance	$ 56.08	$ 48.6
Liability Classified Share Settled [Member]
Share Settled Units (Thousands) [Abstract]
Non-vested Beginning Balance	211,400
Granted	43,600
Vested	(119,800)
Forfeited, expired, or reclassified	(11,900)
Non-vested Ending Balance	123,300	211,400
Weighted Average Grant-Date Fair Value [Abstract]
Non-vested Beginning Balance	$ 48.37
Granted	66.75
Vested	41.21
Forfeited, expired, or reclassified	57.76
Non-vested Ending Balance	$ 56.93	$ 48.37

Earnings Per Share (Schedule of

Earnings Per Share (Schedule of earnings per share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended								12 Months Ended
		May 28, 2017	Feb. 26, 2017	Nov. 27, 2016	Aug. 28, 2016	May 29, 2016	Feb. 28, 2016	Nov. 29, 2015	Aug. 30, 2015	May 28, 2017	May 29, 2016	May 31, 2015
EARNINGS PER SHARE [Abstract]
Net earnings attributable to General Mills		$ 408.9	$ 357.8	$ 481.8	$ 409	$ 379.6	$ 361.7	$ 529.5	$ 426.6	$ 1,657.5	$ 1,697.4	$ 1,221.3
Average number of common shares - basic EPS										587.1	598.9	603.3
Earnings Per Share, Basic and Diluted [Abstract]
Average number of common shares - diluted EPS										598	611.9	618.8
Earnings per share - basic		$ 0.7	$ 0.62	$ 0.82	$ 0.68	$ 0.63	$ 0.61	$ 0.88	$ 0.71	$ 2.82	$ 2.83	$ 2.02
Earnings per share - diluted		$ 0.69	$ 0.61	$ 0.8	$ 0.67	$ 0.62	$ 0.59	$ 0.87	$ 0.69	$ 2.77	$ 2.77	$ 1.97
Other Disclosures [Abstract]
Anti-dilutive stock options, restricted stock units, and performance share units										2.3	1.1	2.1
Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental share effect	[1]									8.1	9.8	11.3
Restricted stock units, performance shares units, and other [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental share effect	[1]									2.8	3.2	4.2
[1]	Increme ntal shares from stock options , restricted stock units , and performance share units are computed by the treasury stock method.

Retirement Benefits and Poste85

Retirement Benefits and Postemployment Benefits (Narrative) (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	May 28, 2017		May 29, 2016	May 31, 2015
Defined Benefit Plan, Information About Plan Assets
Accumulated benefit obligation	$ 6,104.5		$ 5,950.7
Increase (decrease) in service and interest cost for current period resulting from change in estimate methodology	$ (68)
Expected rate of return on plan assets	8.25%
Defined Contribution Plan Disclosure [Line Items]
Net assets of money purchase plan	$ 23		21
Recognized expense	$ 54.1		$ 61.2	$ 44
General Mills Savings Plan [Member]
Defined Contribution Plan Disclosure [Line Items]
ESOP number of allocated shares	6.3		6.9
Common stock held by ESOP and company stock fund	$ 598.7		$ 711.5
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 25.4		$ 23.7
Defined Benefit Plan, Information About Plan Assets
Expected rate of return on plan assets	8.17%	[1]	8.53%	8.53%
Defined Benefit Pension Plans [Member] | United States Equities [Member]
Defined Benefit Plan, Information About Plan Assets
Target Allocation, Percentage of Assets Equity Securities	20.00%
Defined Benefit Pension Plans [Member] | International Equities [Member]
Defined Benefit Plan, Information About Plan Assets
Target Allocation, Percentage of Assets Equity Securities	15.00%
Defined Benefit Pension Plans [Member] | Private Equities [Member]
Defined Benefit Plan, Information About Plan Assets
Target Allocation, Percentage of Assets Equity Securities	10.00%
Defined Benefit Pension Plans [Member] | Fixed income [Member]
Defined Benefit Plan, Information About Plan Assets
Target Allocation, Percentage of Assets Equity Securities	40.00%
Defined Benefit Pension Plans [Member] | Real assets [Member]
Defined Benefit Plan, Information About Plan Assets
Target Allocation, Percentage of Assets Equity Securities	15.00%
U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 0		$ 0	$ 0
Defined Benefit Plan, Information About Plan Assets
Retirement Plan Provision Termination Period	5 years
Decline in projected benefit obligation as of fiscal year end	$ 130.9
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 20.1		$ 24.1
Defined Benefit Plan, Information About Plan Assets
Expected rate of return on plan assets	7.85%	[1]	8.14%	8.13%
Other Postretirement Benefit Plans [Member] | United States Equities [Member]
Defined Benefit Plan, Information About Plan Assets
Target Allocation, Percentage of Assets Equity Securities	30.00%
Other Postretirement Benefit Plans [Member] | International Equities [Member]
Defined Benefit Plan, Information About Plan Assets
Target Allocation, Percentage of Assets Equity Securities	15.00%
Other Postretirement Benefit Plans [Member] | Private Equities [Member]
Defined Benefit Plan, Information About Plan Assets
Target Allocation, Percentage of Assets Equity Securities	10.00%
Other Postretirement Benefit Plans [Member] | Fixed income [Member]
Defined Benefit Plan, Information About Plan Assets
Target Allocation, Percentage of Assets Equity Securities	40.00%
Other Postretirement Benefit Plans [Member] | Real assets [Member]
Defined Benefit Plan, Information About Plan Assets
Target Allocation, Percentage of Assets Equity Securities	5.00%
United States Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 20		$ 24.1
Postemployment Benefit Plans [Member]
Defined Benefit Plan, Information About Plan Assets
Expected rate of return on plan assets	0.00%	[1]	0.00%	0.00%
[1]	(a) Beginning in fiscal 2017, we adopted the full yield curve method.

Retirement Benefits and Poste86

Retirement Benefits and Postemployment Benefits (Schedule of assumed health care trend costs) (Details)	12 Months Ended
	May 28, 2017	May 29, 2016
Defined Benefit Plan Assumed Health Care Cost Trend Rates [Abstract]
Rate to which the cost trend rate is assumed to decline (ultimate rate)	5.00%	5.00%
Year that Rate Reaches Ultimate Trend Rate	2,024	2,024
Under Age 65 [Member]
Defined Benefit Plan Assumed Health Care Cost Trend Rates [Abstract]
Health care cost trend rate for next year	7.00%	7.30%
Over Age 65 [Member]
Defined Benefit Plan Assumed Health Care Cost Trend Rates [Abstract]
Health care cost trend rate for next year	7.30%	7.50%

Retirement Benefits and Poste87

Retirement Benefits and Postemployment Benefits (Schedule of one percentage point change in the health care trend rate) (Details) $ in Millions	12 Months Ended
	May 28, 2017USD ($)
Defined Benefit Plan Effect Of One Percentage Point Change In Assumed Health Care Cost Trend Rates [Abstract]
Effect of one percentage point increase on the aggregate of the service and interest cost components next year	$ 2.2
Effect of one percentage point increase on the other postretirement accumulated benefit obligation as of current year end	59.5
Effect of one percentage point decrease on the aggregate of the service and interest cost components next year	(1.9)
Effect of one percentage point decrease on the other postretirement accumulated benefit obligation as of current year end	$ (53.8)

Retirement Benefits and Poste88

Retirement Benefits and Postemployment Benefits (Schedule of summarized financial information about benefit plans) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Defined Benefit Pension Plans [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets Roll Forward [Abstract]
Fair value at beginning of year	$ 5,539.9	$ 5,758.5
Actual return on assets	645.6	36.3
Employer contributions	25.4	23.7
Plan participant contributions	8.8	5.7
Benefits payments	(282.2)	(277.5)
Foreign currency	(12.3)	(6.8)
Fair value at end of year	5,925.2	5,539.9	$ 5,758.5
Defined Benefit Plan, Change in Projected Benefit Obligation Roll Forward [Abstract]
Benefit obligation at beginning of year	6,448.5	6,252.1
Service cost	119.7	134.6	137
Interest cost	216.5	267.8	249.2
Plan amendment	(130.9)	0.9
Curtailment/other	1.9	7.1
Plan participant contributions	8.8	5.7
Medicare Part D reimbursements	0	0
Actuarial loss (gain)	88.5	65.2
Benefits payments	(282.6)	(278)
Foreign currency	(11.8)	(6.9)
Projected benefit obligation at end of year	6,458.6	6,448.5	6,252.1
Plan assets less than benefit obligation as of fiscal year end	(533.4)	(908.6)
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets Roll Forward [Abstract]
Fair value at beginning of year	602.4	582.8
Actual return on assets	75.2	(0.1)
Employer contributions	20.1	24.1
Plan participant contributions	15.2	14.1
Benefits payments	(18.1)	(18.5)
Foreign currency	0	0
Fair value at end of year	694.8	602.4	582.8
Defined Benefit Plan, Change in Projected Benefit Obligation Roll Forward [Abstract]
Benefit obligation at beginning of year	1,028.9	1,079.6
Service cost	12.5	19	22.4
Interest cost	32.2	44.1	46.9
Plan amendment	0	0
Curtailment/other	(0.3)	0.5
Plan participant contributions	15.2	14.1
Medicare Part D reimbursements	3.4	3.5
Actuarial loss (gain)	(77.6)	(64.5)
Benefits payments	(63.3)	(66.4)
Foreign currency	0.4	(1)
Projected benefit obligation at end of year	951.4	1,028.9	1,079.6
Plan assets less than benefit obligation as of fiscal year end	(256.6)	(426.5)
Postemployment Benefit Plans [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets Roll Forward [Abstract]
Plan participant contributions	0	0
Defined Benefit Plan, Change in Projected Benefit Obligation Roll Forward [Abstract]
Benefit obligation at beginning of year	164.1	146.6
Service cost	8.8	7.6	7.5
Interest cost	2.6	3.9	4.3
Plan amendment	0	1.1
Curtailment/other	1.3	10.7
Plan participant contributions	0	0
Medicare Part D reimbursements	0	0
Actuarial loss (gain)	(7.4)	11.2
Benefits payments	(34.7)	(16.9)
Foreign currency	(0.2)	(0.1)
Projected benefit obligation at end of year	134.5	164.1	$ 146.6
Plan assets less than benefit obligation as of fiscal year end	$ (134.5)	$ (164.1)

Retirement Benefits and Poste89

Retirement Benefits and Postemployment Benefits (Schedule of amounts recognized in AOCI) (Details) - USD ($) $ in Millions	May 28, 2017	May 29, 2016
Defined Benefit Plan Disclosure [Line Items]
Net actuarial gain (loss)	$ (1,645.4)	$ (1,958.2)
Prior service (costs) credits	19.5	11.9
Amounts recorded in accumulated other comprehensive loss	(1,625.9)	(1,946.3)
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial gain (loss)	(1,621.4)	(1,886)
Prior service (costs) credits	(3.9)	(6.8)
Amounts recorded in accumulated other comprehensive loss	(1,625.3)	(1,892.8)
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial gain (loss)	(14.5)	(57.6)
Prior service (costs) credits	22.8	19.9
Amounts recorded in accumulated other comprehensive loss	8.3	(37.7)
Postemployment Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial gain (loss)	(9.5)	(14.6)
Prior service (costs) credits	0.6	(1.2)
Amounts recorded in accumulated other comprehensive loss	$ (8.9)	$ (15.8)

Retirement Benefits and Poste90

Retirement Benefits and Postemployment Benefits (Schedule of plans with accumulated benefit obiligations in excess of plan assets) (Details) - USD ($) $ in Millions	May 28, 2017	May 29, 2016
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets [Abstract]
Projected benefit obligation	$ 610.1	$ 5,490.3
Accumulated benefit obligation	542.3	4,998.3
Plan assets at fair value	51.9	4,498.5
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets [Abstract]
Projected benefit obligation	5.5	0
Accumulated benefit obligation	947.9	1,024.7
Plan assets at fair value	694.8	602.4
Postemployment Benefit Plans [Member]
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets [Abstract]
Projected benefit obligation	4.4	4.8
Accumulated benefit obligation	130.1	159.3
Plan assets at fair value	$ 0	$ 0

Retirement Benefits and Poste91

Retirement Benefits and Postemployment Benefits (Schedule of components of net periodic benefit expense) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Defined Benefit Pension Plans [Member]
Components of Net Periodic Benefit Cost [Abstract]
Service cost	$ 119.7	$ 134.6	$ 137
Interest cost	216.5	267.8	249.2
Expected return on plan assets	(486.7)	(496.9)	(476.4)
Amortization of losses	190.2	189.8	141.7
Amortization of prior service costs (credits)	2.5	4.7	7.4
Other adjustments	3.1	5	15.1
Settlement or curtailment losses	3.8	13.1	18
Net (income) expense	49.1	118.1	92
Other Postretirement Benefit Plans [Member]
Components of Net Periodic Benefit Cost [Abstract]
Service cost	12.5	19	22.4
Interest cost	32.2	44.1	46.9
Expected return on plan assets	(48.5)	(46.2)	(40.2)
Amortization of losses	2.5	6.6	4.9
Amortization of prior service costs (credits)	(5.4)	(5.4)	(1.6)
Other adjustments	1.3	2.3	3.3
Settlement or curtailment losses	(0.9)	(1)	1.3
Net (income) expense	(6.3)	19.4	37
Postemployment Benefit Plans [Member]
Components of Net Periodic Benefit Cost [Abstract]
Service cost	8.8	7.6	7.5
Interest cost	2.6	3.9	4.3
Expected return on plan assets	0	0	0
Amortization of losses	1.7	0.7	0.7
Amortization of prior service costs (credits)	0.6	2.5	2.4
Other adjustments	1.3	10.7	9.5
Settlement or curtailment losses	(1.4)	0	0
Net (income) expense	$ 13.6	$ 25.4	$ 24.4

Retirement Benefits and Poste92

Retirement Benefits and Postemployment Benefits (Schedule of amounts expected to be recognized in net periodic expense next year) (Details) $ in Millions	12 Months Ended
	May 28, 2017USD ($)
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Amounts That Will Be Amortized From Accumulated Other Comprehensive Income Loss In Next Fiscal Year [Abstract]
Amortization of losses	$ 176.9
Amortization of prior service costs (credits)	1.9
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Amounts That Will Be Amortized From Accumulated Other Comprehensive Income Loss In Next Fiscal Year [Abstract]
Amortization of losses	0.8
Amortization of prior service costs (credits)	(5.4)
Postemployment Benefit Plans [Member]
Defined Benefit Plan Amounts That Will Be Amortized From Accumulated Other Comprehensive Income Loss In Next Fiscal Year [Abstract]
Amortization of losses	0.6
Amortization of prior service costs (credits)	$ 0.8

Retirement Benefits and Poste93

Retirement Benefits and Postemployment Benefits (Schedule of assumptions used to determine benefit obligations) (Details)	May 28, 2017	May 29, 2016
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Benefit Obligation [Abstract]
Discount rate	4.08%	4.19%
Rate of salary increases	4.25%	4.28%
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Benefit Obligation [Abstract]
Discount rate	3.92%	3.97%
Rate of salary increases	0.00%	0.00%
Postemployment Benefit Plans [Member]
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Benefit Obligation [Abstract]
Discount rate	2.87%	2.94%
Rate of salary increases	4.46%	4.35%

Retirement Benefits and Poste94

Retirement Benefits and Postemployment Benefits (Schedule of assumptions used to determine net periodic expense) (Details)	12 Months Ended
	May 28, 2017		May 29, 2016	May 31, 2015
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Net Periodic Benefit Cost [Abstract]
Expected long-term rate of return on plan assets	8.25%
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	4.19%	[1]	4.38%	4.54%
Service cost effective rate	4.57%	[1]	0.00%	0.00%
Interest cost effective rate	3.44%	[1]	0.00%	0.00%
Rate of salary increases	4.28%	[1]	4.31%	4.44%
Expected long-term rate of return on plan assets	8.17%	[1]	8.53%	8.53%
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	3.97%	[1]	4.20%	4.51%
Service cost effective rate	4.42%	[1]	0.00%	0.00%
Interest cost effective rate	3.17%	[1]	0.00%	0.00%
Rate of salary increases	0.00%	[1]	0.00%	0.00%
Expected long-term rate of return on plan assets	7.85%	[1]	8.14%	8.13%
Postemployment Benefit Plans [Member]
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	2.94%	[1]	3.55%	3.82%
Service cost effective rate	3.55%	[1]	0.00%	0.00%
Interest cost effective rate	2.67%	[1]	0.00%	0.00%
Rate of salary increases	4.35%	[1]	4.36%	4.44%
Expected long-term rate of return on plan assets	0.00%	[1]	0.00%	0.00%
[1]	(a) Beginning in fiscal 2017, we adopted the full yield curve method.

Retirement Benefits and Poste95

Retirement Benefits and Postemployment Benefits (Schedule of fair values of benefit plan assets and their respective levels in fair value heirarchy) (Details) - USD ($) $ in Millions		May 28, 2017	May 29, 2016	May 31, 2015
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets		$ 5,925.2	$ 5,539.9	$ 5,758.5
Defined Benefit Pension Plans [Member] | Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[1]	2,554.2	2,285.6
Defined Benefit Pension Plans [Member] | Fixed income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[2]	1,694.1	1,649.6
Defined Benefit Pension Plans [Member] | Real assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[3]	348.9	288.8
Defined Benefit Pension Plans [Member] | Other investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[4]	0.3	0.4
Defined Benefit Pension Plans [Member] | Cash and accruals [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets		174.2	195.1
Defined Benefit Pension Plans [Member] | Total fair value measurement of plan assets in the fair value hierarchy [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets		4,771.7	4,419.5
Defined Benefit Pension Plans [Member] | Investments measured at net asset value [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[5]	1,153.5	1,120.4
Defined Benefit Pension Plans [Member] | Level 1 [Member] | Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[1]	1,773	1,543.7
Defined Benefit Pension Plans [Member] | Level 1 [Member] | Fixed income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[2]	951.9	903.8
Defined Benefit Pension Plans [Member] | Level 1 [Member] | Real assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[3]	253.1	193.6
Defined Benefit Pension Plans [Member] | Level 1 [Member] | Other investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[4]	0	0
Defined Benefit Pension Plans [Member] | Level 1 [Member] | Cash and accruals [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets		174.2	195.1
Defined Benefit Pension Plans [Member] | Level 1 [Member] | Total fair value measurement of plan assets in the fair value hierarchy [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets		3,152.2	2,836.2
Defined Benefit Pension Plans [Member] | Level 2 [Member] | Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[1]	781.2	741.9
Defined Benefit Pension Plans [Member] | Level 2 [Member] | Fixed income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[2]	742.2	745.8
Defined Benefit Pension Plans [Member] | Level 2 [Member] | Real assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[3]	95.8	95.2
Defined Benefit Pension Plans [Member] | Level 2 [Member] | Other investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[4]	0	0
Defined Benefit Pension Plans [Member] | Level 2 [Member] | Cash and accruals [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets		0	0
Defined Benefit Pension Plans [Member] | Level 2 [Member] | Total fair value measurement of plan assets in the fair value hierarchy [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets		1,619.2	1,582.9
Defined Benefit Pension Plans [Member] | Level 3 [Member] | Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[1]	0	0
Defined Benefit Pension Plans [Member] | Level 3 [Member] | Fixed income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[2]	0	0
Defined Benefit Pension Plans [Member] | Level 3 [Member] | Real assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[3]	0	0
Defined Benefit Pension Plans [Member] | Level 3 [Member] | Other investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[4]	0.3	0.4
Defined Benefit Pension Plans [Member] | Level 3 [Member] | Cash and accruals [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets		0	0
Defined Benefit Pension Plans [Member] | Level 3 [Member] | Total fair value measurement of plan assets in the fair value hierarchy [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets			0.4
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets		694.8	602.4	$ 582.8
Other Postretirement Benefit Plans [Member] | Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[1]	189.8	216.5
Other Postretirement Benefit Plans [Member] | Fixed income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[2]	194.1	101.4
Other Postretirement Benefit Plans [Member] | Real assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[3]	32.5	14.3
Other Postretirement Benefit Plans [Member] | Other investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[4]	0	0
Other Postretirement Benefit Plans [Member] | Cash and accruals [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets		11.3	8.9
Other Postretirement Benefit Plans [Member] | Total fair value measurement of plan assets in the fair value hierarchy [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets		427.7	341.1
Other Postretirement Benefit Plans [Member] | Investments measured at net asset value [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[5]	267.1	261.3
Other Postretirement Benefit Plans [Member] | Level 1 [Member] | Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[1]	122.3	128.9
Other Postretirement Benefit Plans [Member] | Level 1 [Member] | Fixed income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[2]	34.1	18
Other Postretirement Benefit Plans [Member] | Level 1 [Member] | Real assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[3]	18	0
Other Postretirement Benefit Plans [Member] | Level 1 [Member] | Other investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[4]	0	0
Other Postretirement Benefit Plans [Member] | Level 1 [Member] | Cash and accruals [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets		11.3	8.9
Other Postretirement Benefit Plans [Member] | Level 1 [Member] | Total fair value measurement of plan assets in the fair value hierarchy [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets		185.7	155.8
Other Postretirement Benefit Plans [Member] | Level 2 [Member] | Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[1]	67.5	87.6
Other Postretirement Benefit Plans [Member] | Level 2 [Member] | Fixed income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[2]	160	83.4
Other Postretirement Benefit Plans [Member] | Level 2 [Member] | Real assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[3]	14.5	14.3
Other Postretirement Benefit Plans [Member] | Level 2 [Member] | Other investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[4]	0	0
Other Postretirement Benefit Plans [Member] | Level 2 [Member] | Cash and accruals [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets		0	0
Other Postretirement Benefit Plans [Member] | Level 2 [Member] | Total fair value measurement of plan assets in the fair value hierarchy [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets		242	185.3
Other Postretirement Benefit Plans [Member] | Level 3 [Member] | Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[1]	0	0
Other Postretirement Benefit Plans [Member] | Level 3 [Member] | Fixed income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[2]	0	0
Other Postretirement Benefit Plans [Member] | Level 3 [Member] | Real assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[3]	0	0
Other Postretirement Benefit Plans [Member] | Level 3 [Member] | Other investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets	[4]	0	0
Other Postretirement Benefit Plans [Member] | Level 3 [Member] | Cash and accruals [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets		0	0
Other Postretirement Benefit Plans [Member] | Level 3 [Member] | Total fair value measurement of plan assets in the fair value hierarchy [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of pension plan assets		$ 0	$ 0
[1]	Primarily publicly traded common stock for purposes of total return and to maintain equity exposure consistent with policy allocations. Investments include: United States and international equity securities, mutual funds, and equity futures valued at closing prices from national exchanges, and commingled funds valued at unit values provided by the investment managers, which are based on the fair value of the underlying investments.
[2]	Primarily government and corporate debt securities and futures for purposes of total return, managing fixed income exposure to policy allocations, and managing duration targets. Investments include: fixed income securities an d bond futures generally valued at closing prices from national exchanges, fixed income pricing models, and independent financial analysts; and fixed income commingled funds valued at unit values provided by the investment managers, which are based on the fair value of the underlying investments.
[3]	Publicly traded common stock and limited partnerships in the energy and real estate sectors for purposes of total return. Investments include: energy and real estate securities generally valued at closing pri ces from national exchanges, and commingled funds valued at unit values provided by the investment managers, which are based on the fair value of the underlying investments.
[4]	Global balanced fund of equity, fixed income, and real estate securities fo r purposes of meeting Canadian pension plan asset allocation policies, and insurance and annuity contracts to provide a stable stream of income for retirees and to fund postretirement medical benefits. Fair values are derived from unit values provided by t he investment managers, which are generally based on the fair value of the underlying investments and contract fair values from the providers.
[5]	Primarily private investments and common collective trusts that are measured at fair value using the net asse t value per share (or its equivalent) practical expedient and have not been classified in the fair value hierarchy.

Retirement Benefits and Poste96

Retirement Benefits and Postemployment Benefits (Schedule of asset allocations for benefit plans) (Details)	May 28, 2017	May 29, 2016
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Weighted-Average Asset Allocations	100.00%	100.00%
Defined Benefit Pension Plans [Member] | United States Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Weighted-Average Asset Allocations	28.50%	30.50%
Defined Benefit Pension Plans [Member] | International Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Weighted-Average Asset Allocations	17.90%	19.00%
Defined Benefit Pension Plans [Member] | Private Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Weighted-Average Asset Allocations	7.80%	8.30%
Defined Benefit Pension Plans [Member] | Fixed income [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Weighted-Average Asset Allocations	31.70%	28.60%
Defined Benefit Pension Plans [Member] | Real assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Weighted-Average Asset Allocations	14.10%	13.60%
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Weighted-Average Asset Allocations	100.00%	100.00%
Other Postretirement Benefit Plans [Member] | United States Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Weighted-Average Asset Allocations	31.90%	37.20%
Other Postretirement Benefit Plans [Member] | International Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Weighted-Average Asset Allocations	17.80%	23.40%
Other Postretirement Benefit Plans [Member] | Private Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Weighted-Average Asset Allocations	3.60%	3.90%
Other Postretirement Benefit Plans [Member] | Fixed income [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Weighted-Average Asset Allocations	40.00%	29.40%
Other Postretirement Benefit Plans [Member] | Real assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Weighted-Average Asset Allocations	6.70%	6.10%

Retirement Benefits and Poste97

Retirement Benefits and Postemployment Benefits (Schedule of estimated benefit payments) (Details) $ in Millions	May 28, 2017USD ($)
Defined Benefit Plan Estimated Future Benefit Payments [Abstract]
Medicare Subsidy Receipts, Next Twelve Months	$ 4.3
Medicare Subsidy Receipts, Year Two	4.6
Medicare Subsidy Receipts, Year Three	4.2
Medicare Subsidy Receipts, Year Four	3.5
Medicare Subsidy Receipts, Year Five	3.6
Medicare Subsidy Receipts, Five Fiscal Years Thereafter	18.8
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Estimated Future Benefit Payments [Abstract]
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months	290.2
Defined Benefit Plan, Expected Future Benefit Payments, Year Two	298.6
Defined Benefit Plan, Expected Future Benefit Payments, Year Three	307.7
Defined Benefit Plan, Expected Future Benefit Payments, Year Four	316.4
Defined Benefit Plan, Expected Future Benefit Payments, Year Five	325.7
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter	1,767.8
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Estimated Future Benefit Payments [Abstract]
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months	59.5
Defined Benefit Plan, Expected Future Benefit Payments, Year Two	61.6
Defined Benefit Plan, Expected Future Benefit Payments, Year Three	63
Defined Benefit Plan, Expected Future Benefit Payments, Year Four	64.1
Defined Benefit Plan, Expected Future Benefit Payments, Year Five	64.8
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter	328.8
Postemployment Benefit Plans [Member]
Defined Benefit Plan Estimated Future Benefit Payments [Abstract]
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months	21.2
Defined Benefit Plan, Expected Future Benefit Payments, Year Two	19
Defined Benefit Plan, Expected Future Benefit Payments, Year Three	17.4
Defined Benefit Plan, Expected Future Benefit Payments, Year Four	16.1
Defined Benefit Plan, Expected Future Benefit Payments, Year Five	15
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter	$ 61.5

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Tax Credit Carryforward [Line Items]
Valuation allowance	$ 231.8	$ 227
Valuation allowance related to deferred tax asset for losses recorded as part of Pillsbury acquisition	167.2
Valuation allowance related to various state and foreign loss carryforwards	53.3
Tax loss carryforwards	142.1
Unremitted foreign earnings	2,300
Foreign earnings repatriated			$ 606.1
Discrete income tax charge related to foreign earnings repatriated			$ 78.6
Unrecognized tax benefits that would affect effective tax rate	62
Unrecognized tax benefits and accrued interest expected to be paid within the next 12 months	1.8
Tax-related net interest and penalties benefits recognized	5.6	2.7
Tax-related net interest and penalties accrued	$ 23.1	$ 32.1
Minimum [Member]
Tax Credit Carryforward [Line Items]
Number of open tax years for certain U.S. tax jurisdictions	3 years
Maximum [Member]
Tax Credit Carryforward [Line Items]
Number of open tax years for certain U.S. tax jurisdictions	5 years
Foreign [Member]
Tax Credit Carryforward [Line Items]
Tax loss carryforwards	$ 125.3
Foreign [Member] | No Expiration Date [Member]
Tax Credit Carryforward [Line Items]
Tax loss carryforwards	93.2
Foreign [Member] | Expiration Dates in Year One and Two [Member]
Tax Credit Carryforward [Line Items]
Tax loss carryforwards	3.7
Foreign [Member] | Expiration Dates in Year Three and Beyond [Member]
Tax Credit Carryforward [Line Items]
Tax loss carryforwards	28.4
State [Member]
Tax Credit Carryforward [Line Items]
Tax loss carryforwards	16.8
Capital Loss Carryforward [Member] | Foreign [Member]
Tax Credit Carryforward [Line Items]
Valuation allowance	$ 11.1

Income Taxes (Schedule of earni

Income Taxes (Schedule of earnings before income taxes and after-tax earnings from joint ventures and corresponding income taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Earnings before income taxes and after-tax earnings from joint ventures:
United States	$ 1,941.6	$ 1,941.4	$ 1,338.6
Foreign	329.7	462.2	423.3
Earnings before income taxes and after-tax earnings from joint ventures	2,271.3	2,403.6	1,761.9
Income taxes currently payable:
Federal	368.5	489.8	392.7
State and local	21.1	30.8	29.3
Foreign	81.7	114	139.5
Total current	471.3	634.6	561.5
Income taxes deferred:
Federal	201.3	123	70.3
State and local	10.2	(6.9)	(8.7)
Foreign	(27.6)	4.5	(36.3)
Total deferred	183.9	120.6	25.3
Total income taxes	$ 655.2	$ 755.2	$ 586.8

Income Taxes (Schedule of the r

Income Taxes (Schedule of the reconcilation of the effective income tax rate) (Details)	3 Months Ended	12 Months Ended
	May 29, 2016	May 28, 2017	May 29, 2016		May 31, 2015
Effective Income Tax Rate Reconciliation [Abstract]
United States statutory rate		35.00%	35.00%		35.00%
State and local income taxes, net of federal tax benefits		0.80%	0.70%		0.70%
Foreign rate differences		(3.50%)	(2.20%)		(3.10%)
Repatriation on foreign earnings		0.00%	0.00%		4.50%
Non-deductible goodwill		0.00%	2.60%		0.00%
Domestic manufacturing deduction		(2.80%)	(2.00%)		(2.90%)
Other, net		(0.70%)	(2.70%)	[1]	(0.90%)
Effective income tax rate	19.20%	28.80%	31.40%		33.30%
General Mills de Venezuela CA Subsidiary [Member]
Divestitures [Line Items]
Effective income tax rate reconciliation, tax benefit related to divestiture			(0.60%)
[1]	Fiscal 2016 includes 0.6 percent tax benefit related to the divestiture of our business in Venezuela. See Note 3 for additional information.

Income Taxes (Schedule of defer

Income Taxes (Schedule of deferred tax assets and liabilities) (Details) - USD ($) $ in Millions	May 28, 2017	May 29, 2016
Tax effects of temporary differences that give rise to deferred tax assets and liabilities [Abstract]
Accrued liabilities	$ 70	$ 89.9
Compensation and employee benefits	419.2	491.5
Pension	196.3	322
Tax credit carryforwards	18.4	4.5
Stock, partnership, and miscellaneous investments	276.4	353.6
Capital losses	29.8	14.5
Net operating losses	109.5	97.9
Other	85.6	84.1
Gross deferred tax assets	1,205.2	1,458
Valuation allowance	231.8	227
Net deferred tax assets	973.4	1,231
Brands	1,310.1	1,311.7
Fixed assets	484.5	476.3
Intangible assets	238.6	221.8
Tax lease transactions	45.8	48
Inventories	60	53
Stock, partnership, and miscellaneous investments	479.4	476
Unrealized hedges	45.4	22.6
Other	29	21.2
Gross deferred tax liabilities	2,692.8	2,630.6
Net deferred tax liability	$ 1,719.4	$ 1,399.6

Income Taxes (Schedule of chang

Income Taxes (Schedule of changes in total gross unrecognized tax benefit liabilities, excluding accrued interest) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016
Changes in total gross unrecognized tax benefit liabilities [Roll Forward]
Balance, beginning of year	$ 176.5	$ 161.1
Current year additions	27.2	31.6
Prior years additions	0.9	23.9
Prior years reductions	(47.9)	(25.7)
Prior years settlements	(9.6)	(4)
Lapses in statutes of limitations	(11.6)	(10.4)
Balance, end of year	$ 135.5	$ 176.5

Leases, Other Commitments, a103

Leases, Other Commitments, and Contingencies (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
LEASES, OTHER COMMITMENTS, AND CONTINGENCIES [Abstract]
Operating leases, rent expense, net	$ 188.1	$ 189.1	$ 193.5
Future payments due under noncancelable operating leases	500.7
Financial Guarantee [Member] | Consolidated Subsidiaries [Member]
Guarantor Obligations [Line Items]
Guarantee obligations and comfort letters	504.7
Financial Guarantee [Member] | Non-consolidated Affiliates [Member]
Guarantor Obligations [Line Items]
Guarantee obligations and comfort letters	$ 165.3

Leases, Other Commitments, a104

Leases, Other Commitments, and Contingencies (Schedule of noncancelable future lease commitments) (Details) $ in Millions	May 28, 2017USD ($)
Operating lease future commitments
Due within one year	$ 118.8
Due within second year	101.7
Due within third year	80.7
Due within fourth year	60.7
Due within fifth year	49.7
Due after fifth year	89.1
Total noncancelable future lease commitments	500.7
Capital lease future commitments
Due within one year	0.4
Due within second year	0.4
Due within third year	0.2
Due within fourth year	0.1
Due within fifth year	0
Due after fifth year	0.1
Total noncancelable future lease commitments	1.2
Less: interest	(0.1)
Present value of obligations under capital leases	$ 1.1

Business Segment and Geograp105

Business Segment and Geographic Information (Narrative) (Details)	12 Months Ended
	May 28, 2017segment
Segment Reporting Information [Line Items]
Number of operating segments	4
North America Retail [Member]
Segment Reporting Information [Line Items]
Segment percentage of total consolidated net sales	65.30%
Convenience Stores and Foodservice [Member]
Segment Reporting Information [Line Items]
Segment percentage of total consolidated net sales	12.00%
Europe and Australia [Member]
Segment Reporting Information [Line Items]
Segment percentage of total consolidated net sales	11.70%
Asia and Latin America [Member]
Segment Reporting Information [Line Items]
Segment percentage of total consolidated net sales	11.00%

Business Segment Information (S

Business Segment Information (Schedule of operating segment results) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	May 28, 2017	Feb. 26, 2017	Nov. 27, 2016	Aug. 28, 2016	May 29, 2016	Feb. 28, 2016	Nov. 29, 2015	Aug. 30, 2015	May 28, 2017	May 29, 2016	May 31, 2015
Segment Reporting Information [Line Items]
Net sales	$ 3,806.6	$ 3,793.2	$ 4,112.1	$ 3,907.9	$ 3,927.9	$ 4,002.4	$ 4,424.9	$ 4,207.9	$ 15,619.8	$ 16,563.1	$ 17,630.3
Operating profit									2,566.4	2,707.4	2,077.3
Divestitures loss (gain)									13.5	(148.2)	0
Restructuring, impairment, and other exit costs									182.6	151.4	543.9
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales									15,619.8	16,563.1	17,630.3
Operating profit									2,952.6	2,999.5	3,035
Unallocated Corporate Items [Member]
Segment Reporting Information [Line Items]
Operating profit									190.1	288.9	413.8
Significant Reconciling Items [Member]
Segment Reporting Information [Line Items]
Divestitures loss (gain)									13.5	(148.2)	0
Restructuring, impairment, and other exit costs									182.6	151.4	543.9
North America Retail [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales									10,196.9	10,936.6	11,612.1
Operating profit									2,303.6	2,351.2	2,382.7
Convenience Stores and Foodservice Segment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales									1,870	1,923.8	1,995.1
Operating profit									401.2	378.9	353.1
Europe and Australia [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales									1,824.5	1,998	2,126.5
Operating profit									164.2	200.3	179.4
Asia and Latin America [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales									1,728.4	1,704.7	1,896.6
Operating profit									$ 83.6	$ 69.1	$ 119.8

Business Segment Information107

Business Segment Information (Schedule of net sales by class of similar products) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	May 28, 2017	Feb. 26, 2017	Nov. 27, 2016	Aug. 28, 2016	May 29, 2016	Feb. 28, 2016	Nov. 29, 2015	Aug. 30, 2015	May 28, 2017	May 29, 2016	May 31, 2015
Product Information [Line Items]
Net sales	$ 3,806.6	$ 3,793.2	$ 4,112.1	$ 3,907.9	$ 3,927.9	$ 4,002.4	$ 4,424.9	$ 4,207.9	$ 15,619.8	$ 16,563.1	$ 17,630.3
Snacks [Member]
Product Information [Line Items]
Net sales									3,302.2	3,297.2	3,392
Cereal [Member]
Product Information [Line Items]
Net sales									2,673.2	2,731.5	2,771.3
Convenient meals [Member]
Product Information [Line Items]
Net sales									2,653.6	2,779	2,810.3
Yogurt [Member]
Product Information [Line Items]
Net sales									2,403.5	2,760.9	2,938.3
Dough [Member]
Product Information [Line Items]
Net sales									1,690.6	1,820	1,877
Baking mixes and ingredients [Member]
Product Information [Line Items]
Net sales									1,654.1	1,704.3	1,867.7
Super-premium ice cream [Member]
Product Information [Line Items]
Net sales									738.4	731.2	769.5
Vegetables [Member]
Product Information [Line Items]
Net sales									310.5	532.3	937.3
Other [Member]
Product Information [Line Items]
Net sales									$ 193.7	$ 206.7	$ 266.9

Business Segment Information108

Business Segment Information (Schedule of financial information by geographic area) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	May 28, 2017	Feb. 26, 2017	Nov. 27, 2016	Aug. 28, 2016	May 29, 2016	Feb. 28, 2016	Nov. 29, 2015	Aug. 30, 2015	May 28, 2017	May 29, 2016	May 31, 2015
Segment Reporting Information [Line Items]
Net sales	$ 3,806.6	$ 3,793.2	$ 4,112.1	$ 3,907.9	$ 3,927.9	$ 4,002.4	$ 4,424.9	$ 4,207.9	$ 15,619.8	$ 16,563.1	$ 17,630.3
Cash and cash equivalents	766.1				763.7				766.1	763.7
Land, buildings, and equipment	3,687.7				3,743.6				3,687.7	3,743.6
United States [Member]
Segment Reporting Information [Line Items]
Net sales									11,160.9	11,930.9	12,501.8
Cash and cash equivalents	62.9				118.5				62.9	118.5
Land, buildings, and equipment	2,704				2,755.1				2,704	2,755.1
Non-United States [Member]
Segment Reporting Information [Line Items]
Net sales									4,458.9	4,632.2	$ 5,128.5
Cash and cash equivalents	703.2				645.2				703.2	645.2
Land, buildings, and equipment	$ 983.7				$ 988.5				$ 983.7	$ 988.5

Supplemental Information (Sched

Supplemental Information (Schedule of certain Consolidated Balance Sheet accounts) (Details) - USD ($) $ in Millions		May 28, 2017	May 29, 2016	May 31, 2015	May 25, 2014
Receivables [Abstract]
Customers		$ 1,454.4	$ 1,390.4
Less allowance for doubtful accounts		(24.3)	(29.6)
Total		1,430.1	1,360.8
Inventories [Abstract]
Raw materials and packaging		395.4	397.3
Finished goods		1,224.3	1,163.1
Grain		73	72.6
Excess of FIFO over LIFO cost	[1]	(209.1)	(219.3)
Total		1,483.6	1,413.7
LIFO Inventory Amount		893.8	841
Prepaid Expenses and Other Current Assets [Abstract]
Other receivables		163.7	159.3
Prepaid expenses		168.9	177.9
Derivative receivables, primarily commodity-related		35	44.6
Grain contracts		2.7	1.8
Miscellaneous		11.3	15.4
Total		381.6	399
Land, Buildings and Equipment [Abstract]
Land		79.8	92.9
Buildings		2,249.2	2,236
Equipment		6,095.9	5,945.6
Capitalized software		545.4	523
Construction in progress		553	702.7
Total land, buildings, and equipment		9,526.6	9,503.5
Less accumulated depreciation		(5,838.9)	(5,759.9)
Total		3,687.7	3,743.6
Other Assets [Abstract]
Investments in and advances to joint ventures		505.3	518.9
Pension assets		144.9	90.9
Exchangeable note with related party		0	12.7
Life insurance		25.6	26.3
Miscellaneous		110.1	102.9
Total		785.9	751.7
Other Current Liabilities [Abstract]
Accrued trade and consumer promotions		482.6	563.7
Accrued payroll		326.6	386.4
Dividends payable		21.5	23.8
Accrued taxes		58	110.5
Accrued interest, including interest rate swaps		83.8	90.4
Grains contracts		5.6	5.5
Restructuring and other exit costs reserve		85	76.6	$ 120.8	$ 3.5
Derivative payable		18.1	35.6
Miscellaneous		291	302.5
Total		1,372.2	1,595
Other Noncurrent Liabilities [Abstract]
Accrued compensation and benefits, including obligations for underfunded other postretirement benefit and postemployment benefit plans		1,249.7	1,755
Accrued taxes		162.3	204
Miscellaneous		111.1	128.6
Total		1,523.1	2,087.6
Buildings [Member]
Land, Buildings and Equipment [Abstract]
Capital leased assets		0.3	0.3
Equipment [Member]
Land, Buildings and Equipment [Abstract]
Capital leased assets		$ 3	$ 3
[1]	Inventories of $893.8 million as of May 28, 2017 , and $841.0 million as of May 29, 2016 , were valued at LIFO. The difference between replacement cost and the stated LIFO inventory value is not materially different from the reserve for the LIFO valuation meth od.

Supplemental Information (Sc110

Supplemental Information (Schedule of certain Consolidated Statement of Earnings amounts) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
SUPPLEMENTAL INFORMATION [Abstract]
Depreciation and amortization	$ 603.6	$ 608.1	$ 588.3
Research and development expense	218.2	222.1	229.4
Advertising and media expense (including production and communication costs)	$ 623.8	$ 754.4	$ 823.1

Supplemental Information (Sc111

Supplemental Information (Schedule of the components of interest, net) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
SUPPLEMENTAL INFORMATION [Abstract]
Interest expense	$ 306.7	$ 319.6	$ 335.5
Capitalized interest	(4.6)	(7.7)	(6.9)
Interest income	(7)	(8.1)	(13.2)
Interest, net	$ 295.1	$ 303.8	$ 315.4

Supplemental Information (Sc112

Supplemental Information (Schedule of certain Consolidated Statement of Cash Flows amounts) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
SUPPLEMENTAL INFORMATION [Abstract]
Cash interest payments	$ 285.8	$ 292	$ 305.3
Cash paid for income taxes	$ 551.1	$ 533.8	$ 562.6

Quarterly Data (Unaudited) (Nar

Quarterly Data (Unaudited) (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	May 29, 2016	May 28, 2017	May 29, 2016	May 31, 2015
QUARTERLY DATA (UNAUDITED) [Abstract]
Effective income tax rate	19.20%	28.80%	31.40%	33.30%
Divestitures [Line Items]
Pre-tax gain (loss) on sale of business		$ (13.5)	$ 148.2	$ 0
General Mills de Venezuela CA Subsidiary [Member]
Divestitures [Line Items]
Pre-tax gain (loss) on sale of business	$ (37.6)
General Mills Argentina S.A. Foodservice Business [Member]
Divestitures [Line Items]
Pre-tax gain (loss) on sale of business	$ (14.8)

Quarterly Data (Unaudited) (Sch

Quarterly Data (Unaudited) (Schedule of summarized quarterly data) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	May 28, 2017	Feb. 26, 2017	Nov. 27, 2016	Aug. 28, 2016	May 29, 2016	Feb. 28, 2016	Nov. 29, 2015	Aug. 30, 2015	May 28, 2017	May 29, 2016	May 31, 2015
QUARTERLY DATA (UNAUDITED) [Abstract]
Net sales	$ 3,806.6	$ 3,793.2	$ 4,112.1	$ 3,907.9	$ 3,927.9	$ 4,002.4	$ 4,424.9	$ 4,207.9	$ 15,619.8	$ 16,563.1	$ 17,630.3
Gross Margin	1,319.7	1,307.7	1,519.5	1,416.9	1,376.8	1,357.5	1,540.6	1,554.6
Net earnings attributable to General Mills	$ 408.9	$ 357.8	$ 481.8	$ 409	$ 379.6	$ 361.7	$ 529.5	$ 426.6	$ 1,657.5	$ 1,697.4	$ 1,221.3
Earnings per share - basic	$ 0.7	$ 0.62	$ 0.82	$ 0.68	$ 0.63	$ 0.61	$ 0.88	$ 0.71	$ 2.82	$ 2.83	$ 2.02
Earnings per share - diluted	0.69	0.61	0.8	0.67	0.62	0.59	0.87	0.69	2.77	2.77	1.97
Dividends per share	0.48	0.48	0.48	0.48	0.46	0.44	0.44	0.44	1.92	1.78	$ 1.67
Market Price of Common Stock, High	61.16	63.87	71.42	72.64	65.36	60.14	59.23	59.55	61.16	65.36
Market Price of Common Stock, Low	$ 55.91	$ 59.23	$ 60.65	$ 62.78	$ 58.85	$ 54.12	$ 55.41	$ 54.36	$ 55.91	$ 58.85

Schedule II - Valuation of Q115

Schedule II - Valuation of Qualifying Accounts (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016	May 31, 2015
Allowance for Doubtful Accounts [Member]
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	$ 29.6	$ 25.3	$ 21
Additions charged to expense, including translation amounts	16.6	21.4	19.8
Deductions for bad debt write-offs and amounts utilized for restructuring activities	(23.2)	(17.5)	(12.5)
Adjustments	1.3	0.4	(3)
Balance at end of year	24.3	29.6	25.3
Valuation Allowance for Deferred Tax Assets [Member]
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	227	215.4	221.6
Additions charged to expense, including translation amounts	5.2	(1.5)	2.9
Adjustments	(0.4)	13.1	(9.1)
Balance at end of year	231.8	227	215.4
Reserve for Restructuring and Other Exit Costs [Member]
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	76.6	120.8	3.5
Additions charged to expense, including translation amounts	104	70.2	185.1
Deductions for bad debt write-offs and amounts utilized for restructuring activities	(95.6)	(114.4)	(67.8)
Balance at end of year	85	76.6	120.8
Reserve for LIFO Valuation [Member]
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	219.3	214.2	216.9
Increase (decrease)	(10.2)	5.1	(2.7)
Balance at end of year	$ 209.1	$ 219.3	$ 214.2