DEBT AND FINANCING OBLIGATIONS - Other and Notes Payable (Details) - USD ($) $ in Millions	7 Months Ended	12 Months Ended
	May 28, 2017	May 28, 2017	Nov. 30, 2016	May 29, 2016
Net interest expense
Interest paid	$ 48.8
Amortization expense		$ 2.5
Short-term borrowings	22.0	22.0		$ 24.9
Revolving credit facilities
Net interest expense
Maximum borrowing capacity	500.0	500.0	$ 500.0
Outstanding credit facility	4.5	4.5
Short-term borrowings	4.5	4.5
Other credit facilities
Net interest expense
Maximum borrowing capacity	58.0	58.0
Outstanding credit facility	$ 17.5	$ 17.5		24.9
Interest rate (as a percent)	4.35%	4.35%
Short-term borrowings	$ 17.5	$ 17.5		$ 24.9
Conagra
Net interest expense
Debt issuance costs	25.4	25.4
Conagra
Net interest expense
Debt issuance costs	12.3	12.3
Conagra | Revolving credit facilities
Net interest expense
Outstanding credit facility	$ 4.5	$ 4.5