Fair Value Measurements (Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Millions	6 Months Ended
	Apr. 02, 2022	Oct. 02, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Collateral, Right to Reclaim Cash, Offset	$ 12	$ 56
Other income/expense
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Nonrecurring Gain	37
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Netting	(216)	(99)
Total assets	639	608
Derivative Liability, Netting	(228)	(155)
Total liabilities	4	16
Fair Value, Recurring [Member] | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	28	14
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	781	645
Total liabilities	232	171
Fair Value, Recurring [Member] | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	46	48
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	8
Derivative Asset, Netting	(1)	(10)
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	105	80
Derivative Asset, Netting	(215)	(89)
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	2	18
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	320	169
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]
Deferred compensation assets	428	411
Debt Securities, Available-for-sale	105	109
Other Assets [Member] | Fair Value, Recurring [Member] | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation assets	28	14
Debt Securities, Available-for-sale	0	0
Other Assets [Member] | Fair Value, Recurring [Member] | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation assets	400	397
Debt Securities, Available-for-sale	59	61
Other Assets [Member] | Fair Value, Recurring [Member] | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation assets	0	0
Debt Securities, Available-for-sale	46	48
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	(25)	(12)
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	4	16
Derivative Liability, Netting	(203)	(143)
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	25	12
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	207	159
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