v3.25.1
Equity Changes in Accumulated Other Comprehensive Loss, Before Tax (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Mar. 29, 2025
Mar. 30, 2024
Mar. 29, 2025
Mar. 30, 2024
Accumulated Other Comprehensive Income (Loss) [Line Items]        
AOCI before Tax, Attributable to Parent, Beginning Balance $ (3,255) $ (4,194) $ (4,417) $ (3,887)
Unrealized gains (losses) arising during the period (170) 131 143 (12)
Reclassifications of realized net (gains) losses to net income (84) (116) (139) (280)
AOCI reclassifications to comprehensive income, before tax     904  
AOCI before Tax, Attributable to Parent, Ending Balance (3,509) (4,179) (3,509) (4,179)
Market Value Adjustments for Hedges        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
AOCI before Tax, Attributable to Parent, Beginning Balance 152 (158) (319) 259
Unrealized gains (losses) arising during the period (213) 244 346 (33)
Reclassifications of realized net (gains) losses to net income (117) (92) (205) (232)
AOCI reclassifications to comprehensive income, before tax     0  
AOCI before Tax, Attributable to Parent, Ending Balance (178) (6) (178) (6)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
AOCI before Tax, Attributable to Parent, Beginning Balance (2,210) (2,199) (2,243) (2,172)
Unrealized gains (losses) arising during the period (7) (6) (7) (9)
Reclassifications of realized net (gains) losses to net income 33 (24) 66 (48)
AOCI reclassifications to comprehensive income, before tax     0  
AOCI before Tax, Attributable to Parent, Ending Balance (2,184) (2,229) (2,184) (2,229)
Foreign Currency Translation and Other        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
AOCI before Tax, Attributable to Parent, Beginning Balance (1,197) (1,837) (1,855) (1,974)
Unrealized gains (losses) arising during the period 50 (107) (196) 30
Reclassifications of realized net (gains) losses to net income 0 0 0 0
AOCI reclassifications to comprehensive income, before tax     904  
AOCI before Tax, Attributable to Parent, Ending Balance $ (1,147) $ (1,944) $ (1,147) $ (1,944)