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Note 14 - Business Segments and Related Information - Segment Reporting Information by Segment (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Nov. 27, 2022 | Aug. 28, 2022 | Nov. 28, 2021 | Aug. 29, 2021 | Nov. 27, 2022 | Nov. 28, 2021
Net sales | $ 3,312.9 |  | $ 3,058.9 |  | $ 6,217.2 | $ 5,712.2
Operating profit | 656.1 |  | 468.4 |  | 718.3 | 896.3
Equity method investment earnings | 49.3 |  | 29.5 |  | 98.5 | 49.7
General corporate expense | 106.5 |  | 59.0 |  | 190.0 | 123.6
Pension and postretirement non-service income | (6.1) |  | (16.1) |  | (12.2) | (32.2)
Interest expense, net | 100.3 |  | 94.9 |  | 197.4 | 189.1
Income tax expense | 122.5 |  | 84.2 |  | 136.9 | 153.9
Net income | 382.2 |  | 275.9 |  | 304.7 | 511.6
Less: Net income attributable to noncontrolling interests | 0.3 |  | 0.4 |  | 0.3 | 0.7
Net income attributable to Conagra Brands, Inc. common stockholders: | 381.9 | $ (77.5) | 275.5 | $ 235.4 | 304.4 | 510.9
Grocery And Snacks [Member] |  |  |  |  |  |
Net sales | 1,349.9 |  | 1,264.5 |  | 2,538.2 | 2,339.6
Operating profit | 340.4 |  | 249.2 |  | 590.8 | 465.1
Refrigerated And Frozen [Member] |  |  |  |  |  |
Net sales | 1,421.5 |  | 1,285.9 |  | 2,629.1 | 2,387.7
Operating profit | 250.3 |  | 168.3 |  | 34.0 | 325.9
International [Member] |  |  |  |  |  |
Net sales | 258.7 |  | 262.2 |  | 492.2 | 498.8
Operating profit | 36.9 |  | 37.1 |  | 63.8 | 71.2
Foodservice [Member] |  |  |  |  |  |
Net sales | 282.8 |  | 246.3 |  | 557.7 | 486.1
Operating profit | 28.5 |  | 13.8 |  | 29.7 | 34.1
Frozen [Member] |  |  |  |  |  |
Net sales | 1,157.5 |  | 1,073.1 |  | 2,165.9 | 1,993.5
Other Shelf-stable [Member] |  |  |  |  |  |
Net sales | 758.4 |  | 724.6 |  | 1,448.5 | 1,366.2
Refrigerated [Member] |  |  |  |  |  |
Net sales | 264.0 |  | 212.8 |  | 463.2 | 394.2
Snacks [Member] |  |  |  |  |  |
Net sales | 591.5 |  | 539.9 |  | 1,089.7 | 973.4
Foodservice [Member] |  |  |  |  |  |
Net sales | 282.8 |  | 246.3 |  | 557.7 | 486.1
International [Member] |  |  |  |  |  |
Net sales | $ 258.7 |  | $ 262.2 |  | $ 492.2 | $ 498.8

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