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Fair Value Measurement (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Apr. 01, 2017
Apr. 02, 2016
Apr. 01, 2017
Apr. 02, 2016
Oct. 01, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Other than Temporary Impairments, Recognized in Earnings $ 0 $ 0 $ 0 $ 0  
Other than Temporary Impairment Losses, Deferred in OCI     0   $ 0
Liabilities, Fair Value Disclosure, Nonrecurring   0   0  
Assets, Fair Value Disclosure, Nonrecurring   $ 0   $ 0  
San Diego Prepared Foods operation [Member] | Prepared Foods [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Asset Impairment Charges 52   $ 52    
Property, Plant and Equipment Impairment 43        
Impairment of Intangible Assets, Finite-lived 8        
Other Asset Impairment Charges 1        
San Diego Prepared Foods operation [Member] | Prepared Foods [Member] | Cost of Sales [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Asset Impairment Charges 44        
San Diego Prepared Foods operation [Member] | Prepared Foods [Member] | Selling, General and Administrative Expenses [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Asset Impairment Charges 8        
San Diego Prepared Foods operation [Member] | Prepared Foods [Member] | Fair Value, Measurements, Nonrecurring [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Asset Impairment Charges 52        
Property, Plant and Equipment Impairment 43        
Impairment of Intangible Assets, Finite-lived 8        
Other Asset Impairment Charges 1        
San Diego Prepared Foods operation [Member] | Prepared Foods [Member] | Fair Value, Measurements, Nonrecurring [Member] | Cost of Sales [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Asset Impairment Charges 44        
San Diego Prepared Foods operation [Member] | Prepared Foods [Member] | Fair Value, Measurements, Nonrecurring [Member] | Selling, General and Administrative Expenses [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Asset Impairment Charges $ 8        
Maximum [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Short Term Investment Maturity Period     12 months    
Available For Sale Securities Debt Maturity Period     32 years