v3.25.2
Changes in Accumulated Other Comprehensive Loss, Net of Tax (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Jun. 28, 2025
Jun. 29, 2024
Jun. 28, 2025
Jun. 29, 2024
Accumulated Other Comprehensive Income (Loss) [Line Items]        
AOCI, Beginning Balance $ (2,877) $ (3,509) $ (3,699) $ (3,292)
Unrealized gains (losses) arising during the period (140) 156 (57) 154
Reclassifications of realized net (gains) losses to net income (32) (101) (139) (316)
AOCI reclassifications to comprehensive income, net of tax     846  
AOCI, Ending Balance (3,049) (3,454) (3,049) (3,454)
Market Value Adjustments for Hedges        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
AOCI, Beginning Balance (139) (9) (248) 195
Unrealized gains (losses) arising during the period (334) 181 (68) 156
Reclassifications of realized net (gains) losses to net income (57) (83) (214) (262)
AOCI reclassifications to comprehensive income, net of tax     0  
AOCI, Ending Balance (530) 89 (530) 89
Unrecognized Pension and  Postretirement Medical  Expense        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
AOCI, Beginning Balance (1,669) (1,700) (1,712) (1,655)
Unrealized gains (losses) arising during the period 0 (2) (7) (11)
Reclassifications of realized net (gains) losses to net income 25 (18) 75 (54)
AOCI reclassifications to comprehensive income, net of tax     0  
AOCI, Ending Balance (1,644) (1,720) (1,644) (1,720)
Foreign Currency Translation and Other        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
AOCI, Beginning Balance (1,069) (1,800) (1,739) (1,832)
Unrealized gains (losses) arising during the period 194 (23) 18 9
Reclassifications of realized net (gains) losses to net income 0 0 0 0
AOCI reclassifications to comprehensive income, net of tax     846  
AOCI, Ending Balance $ (875) $ (1,823) $ (875) $ (1,823)