v3.24.3
Equity Changes in Accumulated Other Comprehensive Loss, Tax (Details) - USD ($)
$ in Millions
 12 Months Ended
Sep. 28, 2024
Sep. 30, 2023
Oct. 01, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]      
AOCI Tax, Attributable to Parent, Beginning Balance $ 595 $ 861 $ 1,784
Unrealized gains (losses) arising during the period (9) (355) (812)
Reclassifications of realized net (gains) losses to net income 132 89 (111)
AOCI Tax, Attributable to Parent, Ending Balance 718 595 861
Market Value Adjustments for Hedges      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
AOCI Tax, Attributable to Parent, Beginning Balance (64) (179) 42
Unrealized gains (losses) arising during the period 27 12 (254)
Reclassifications of realized net (gains) losses to net income 108 103 33
AOCI Tax, Attributable to Parent, Ending Balance 71 (64) (179)
Unrecognized Pension and Postretirement Medical Expense      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
AOCI Tax, Attributable to Parent, Beginning Balance 517 901 1,653
Unrealized gains (losses) arising during the period (10) (384) (608)
Reclassifications of realized net (gains) losses to net income 24 0 (144)
AOCI Tax, Attributable to Parent, Ending Balance 531 517 901
Foreign Currency Translation and Other      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
AOCI Tax, Attributable to Parent, Beginning Balance 142 139 89
Unrealized gains (losses) arising during the period (26) 17 50
Reclassifications of realized net (gains) losses to net income 0 (14) 0
AOCI Tax, Attributable to Parent, Ending Balance $ 116 $ 142 $ 139