Fair Value Measurements (Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Millions	Jan. 02, 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	$ 22	$ 16
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Netting	(146)	(53)
Total assets	557	510
Derivative Liability, Netting	(91)	(69)
Total liabilities	16	15
Fair Value, Recurring [Member] | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	11	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	641	491
Total liabilities	107	84
Fair Value, Recurring [Member] | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	51	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	1	2
Derivative Asset, Netting	0	(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	64	45
Derivative Asset, Netting	(146)	(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	1	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	210	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	384	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	11	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	57	55
Deferred compensation assets	373	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	51	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	(9)	(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	16	15
Derivative Liability, Netting	(82)	(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	9	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	98	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