Derivative Financial Instruments and Fair Value Measurements (Notional Amounts) (Details)	Dec. 29, 2018 t bu	Dec. 30, 2017 t
Corn [Member]
Derivative [Line Items]
Inventories Carried At Market Unit	141,435
Soybean [Member]
Derivative [Line Items]
Inventories Carried At Market Unit	217,881
Future And Forward Purchase Contracts [Member] | Corn [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	447,000
Future And Forward Purchase Contracts [Member] | Soybean [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	129,000
Future And Forward Sale Contracts [Member] | Corn [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	(393,000)
Future And Forward Sale Contracts [Member] | Soybean [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	(704,000)
Future [Member] | Corn [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	(190,000)
Future [Member] | Soybean [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	355,000
Not Designated as Hedging Instrument [Member] | Future And Forward Sale Contracts [Member] | Cocoa [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | t	6,730	2,990
Not Designated as Hedging Instrument [Member] | Future And Forward Sale Contracts [Member] | Coffee [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | t	85	51