Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	May 27, 2018	May 28, 2017	May 29, 2016
Cash flows from operating activities:
Net income (loss)	$ 811.8	$ 648.0	$ (665.9)
Income (loss) from discontinued operations	14.3	102.0	(794.4)
Income from continuing operations	797.5	546.0	128.5
Adjustments to reconcile income from continuing operations to net cash flows from operating activities:
Depreciation and amortization	257.0	268.0	278.5
Asset impairment charges	14.7	343.3	62.6
Gain on divestitures	0.0	(197.4)	0.0
Lease cancellation expense	48.2	0.0	55.6
Loss on extinguishment of debt	0.0	93.3	23.9
Significant litigation accruals	151.0	0.0	0.0
Earnings of affiliates in excess of distributions	(34.8)	(3.0)	(25.7)
Stock-settled share-based payments expense	37.9	36.1	41.8
Contributions to pension plans	(312.6)	(163.0)	(11.5)
Pension expense (benefit)	(56.1)	(21.4)	358.1
Other items	(34.0)	39.9	53.6
Change in operating assets and liabilities excluding effects of business acquisitions and dispositions:
Receivables	(4.7)	104.7	(156.8)
Inventories	(62.8)	123.3	66.1
Deferred income taxes and income taxes payable, net	10.5	52.3	(264.9)
Prepaid expenses and other current assets	3.2	15.0	10.8
Accounts payable	144.9	71.0	(118.3)
Accrued payroll	(8.0)	(52.4)	68.9
Other accrued liabilities	(32.2)	(114.9)	54.3
Net cash flows from operating activities - continuing operations	919.7	1,140.8	625.5
Net cash flows from operating activities - discontinued operations	34.5	34.7	633.7
Net cash flows from operating activities	954.2	1,175.5	1,259.2
Cash flows from investing activities:
Additions to property, plant and equipment	(251.6)	(242.1)	(277.5)
Sale of property, plant and equipment	8.0	13.2	35.7
Proceeds from divestitures	0.0	489.0	0.0
Purchase of business and intangible assets	(337.1)	(325.7)	(10.4)
Other items	4.5	0.0	0.3
Net cash flows from investing activities - continuing operations	(576.2)	(65.6)	(251.9)
Net cash flows from investing activities - discontinued operations	0.0	(123.7)	2,379.3
Net cash flows from investing activities	(576.2)	(189.3)	2,127.4
Cash flows from financing activities:
Net short-term borrowings	249.1	14.3	9.5
Issuance of long-term debt, net of debt issuance costs	797.0	0.0	0.0
Repayment of long-term debt	(242.3)	(1,064.5)	(2,523.2)
Payment of intangible asset financing arrangement	(14.4)	(14.9)	0.0
Repurchase of Conagra Brands, Inc. common shares	(967.3)	(1,000.0)	0.0
Sale of Conagra Brands, Inc. common shares	0.0	0.0	8.6
Cash dividends paid	(342.3)	(415.0)	(432.5)
Exercise of stock options and issuance of other stock awards, including tax withholdings	14.9	73.8	208.4
Other items	(1.6)	(1.9)	0.0
Net cash flows from financing activities - continuing operations	(506.9)	(2,408.2)	(2,729.2)
Net cash flows from financing activities - discontinued operations	0.0	839.1	(4.0)
Net cash flows from financing activities	(506.9)	(1,569.1)	(2,733.2)
Effect of exchange rate changes on cash and cash equivalents	5.5	(0.2)	(2.0)
Net change in cash and cash equivalents	(123.4)	(583.1)	651.4
Add: Cash balance included in assets held for sale and discontinued operations at beginning of period	0.0	36.4	49.0
Less: Cash balance included in assets held for sale and discontinued operations at end of period	0.0	0.0	36.4
Cash and cash equivalents at beginning of year	251.4	798.1	134.1
Cash and cash equivalents at end of year	$ 128.0	$ 251.4	$ 798.1