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Fair Value Measurements (Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - USD ($)
$ in Millions
Jul. 03, 2021
Oct. 03, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liability, Collateral, Right to Reclaim Cash, Offset $ 17 $ 16
Fair Value, Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Asset, Netting (176) (53)
Total assets 645 510
Derivative Liability, Netting (193) (69)
Total liabilities 21 15
Fair Value, Recurring [Member] | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 14 19
Total liabilities 0 0
Fair Value, Recurring [Member] | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 758 491
Total liabilities 214 84
Fair Value, Recurring [Member] | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 49 53
Total liabilities 0 0
Other Current Assets [Member] | Fair Value, Recurring [Member] | Designated as hedges    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Financial Instruments, Assets 2 2
Derivative Asset, Netting (3) (2)
Other Current Assets [Member] | Fair Value, Recurring [Member] | Undesignated    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Financial Instruments, Assets 122 45
Derivative Asset, Netting (173) (51)
Other Current Assets [Member] | Fair Value, Recurring [Member] | Level 1 | Designated as hedges    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Financial Instruments, Assets 0 0
Other Current Assets [Member] | Fair Value, Recurring [Member] | Level 1 | Undesignated    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Financial Instruments, Assets 0 0
Other Current Assets [Member] | Fair Value, Recurring [Member] | Level 2 | Designated as hedges    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Financial Instruments, Assets 5 4
Other Current Assets [Member] | Fair Value, Recurring [Member] | Level 2 | Undesignated    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Financial Instruments, Assets 295 96
Other Current Assets [Member] | Fair Value, Recurring [Member] | Level 3 | Designated as hedges    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Financial Instruments, Assets 0 0
Other Current Assets [Member] | Fair Value, Recurring [Member] | Level 3 | Undesignated    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Financial Instruments, Assets 0 0
Other Assets [Member] | Fair Value, Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for Sale Securities, Noncurrent 108 108
Deferred compensation assets 413 355
Other Assets [Member] | Fair Value, Recurring [Member] | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for Sale Securities, Noncurrent 0 0
Deferred compensation assets 14 19
Other Assets [Member] | Fair Value, Recurring [Member] | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for Sale Securities, Noncurrent 59 55
Deferred compensation assets 399 336
Other Assets [Member] | Fair Value, Recurring [Member] | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for Sale Securities, Noncurrent 49 53
Deferred compensation assets 0 0
Other Current Liabilities [Member] | Fair Value, Recurring [Member] | Designated as hedges    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Financial Instruments, Liabilities 0 0
Derivative Liability, Netting (28) (10)
Other Current Liabilities [Member] | Fair Value, Recurring [Member] | Undesignated    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Financial Instruments, Liabilities 21 15
Derivative Liability, Netting (165) (59)
Other Current Liabilities [Member] | Fair Value, Recurring [Member] | Level 1 | Designated as hedges    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Financial Instruments, Liabilities 0 0
Other Current Liabilities [Member] | Fair Value, Recurring [Member] | Level 1 | Undesignated    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Financial Instruments, Liabilities 0 0
Other Current Liabilities [Member] | Fair Value, Recurring [Member] | Level 2 | Designated as hedges    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Financial Instruments, Liabilities 28 10
Other Current Liabilities [Member] | Fair Value, Recurring [Member] | Level 2 | Undesignated    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Financial Instruments, Liabilities 186 74
Other Current Liabilities [Member] | Fair Value, Recurring [Member] | Level 3 | Designated as hedges    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Financial Instruments, Liabilities 0 0
Other Current Liabilities [Member] | Fair Value, Recurring [Member] | Level 3 | Undesignated    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Financial Instruments, Liabilities $ 0 $ 0