v3.25.2
Financial Instruments - Cash, Cash Equivalents and Marketable Securities (Details) - USD ($)
$ in Millions
Jun. 28, 2025
Sep. 28, 2024
Marketable Securities [Line Items]    
Cash, Cash Equivalents and Marketable Securities, Adjusted Cost $ 136,270 $ 160,600
Cash Equivalents and Marketable Securities, Unrealized Gains 525 688
Cash Equivalents and Marketable Securities, Unrealized Losses (3,809) (4,638)
Cash, Cash Equivalents and Marketable Securities, Fair Value 132,986 156,650
Cash and Cash Equivalents 36,269 29,943
Current Marketable Securities 19,103 35,228
Non-Current Marketable Securities 77,614 91,479
Unfavorable investigation outcome, EU State Aid rules    
Marketable Securities [Line Items]    
Cash and cash equivalents held in escrow and restricted from general use   2,600
Current marketable securities held in escrow and restricted from general use   13,200
Level 1    
Marketable Securities [Line Items]    
Marketable Securities, Equity, Adjusted Cost 4,425 1,293
Marketable Securities, Equity, Unrealized Gains 134 105
Marketable Securities, Equity, Unrealized Losses (3) (3)
Marketable Securities, Equity, Fair Value 4,556 1,395
Cash and Cash Equivalents 3,779 778
Current Marketable Securities 777 617
Non-Current Marketable Securities 0 0
Level 2    
Marketable Securities [Line Items]    
Marketable Securities, Debt, Adjusted Cost 105,159 132,108
Marketable Securities, Debt, Unrealized Gains 391 583
Marketable Securities, Debt, Unrealized Losses (3,806) (4,635)
Marketable Securities, Debt, Fair Value 101,744 128,056
Cash and Cash Equivalents 5,804 1,966
Current Marketable Securities 18,326 34,611
Non-Current Marketable Securities 77,614 91,479
Cash    
Marketable Securities [Line Items]    
Cash 26,686 27,199
Cash and Cash Equivalents 26,686 27,199
Money market funds | Level 1    
Marketable Securities [Line Items]    
Marketable Securities, Equity, Adjusted Cost 3,779 778
Marketable Securities, Equity, Unrealized Gains 0 0
Marketable Securities, Equity, Unrealized Losses 0 0
Marketable Securities, Equity, Fair Value 3,779 778
Cash and Cash Equivalents 3,779 778
Current Marketable Securities 0 0
Non-Current Marketable Securities 0 0
Mutual funds | Level 1    
Marketable Securities [Line Items]    
Marketable Securities, Equity, Adjusted Cost 646 515
Marketable Securities, Equity, Unrealized Gains 134 105
Marketable Securities, Equity, Unrealized Losses (3) (3)
Marketable Securities, Equity, Fair Value 777 617
Cash and Cash Equivalents 0 0
Current Marketable Securities 777 617
Non-Current Marketable Securities 0 0
U.S. Treasury securities | Level 2    
Marketable Securities [Line Items]    
Marketable Securities, Debt, Adjusted Cost 15,775 16,150
Marketable Securities, Debt, Unrealized Gains 46 45
Marketable Securities, Debt, Unrealized Losses (362) (516)
Marketable Securities, Debt, Fair Value 15,459 15,679
Cash and Cash Equivalents 1,030 212
Current Marketable Securities 3,649 4,087
Non-Current Marketable Securities 10,780 11,380
U.S. agency securities | Level 2    
Marketable Securities [Line Items]    
Marketable Securities, Debt, Adjusted Cost 5,383 5,431
Marketable Securities, Debt, Unrealized Gains 0 0
Marketable Securities, Debt, Unrealized Losses (189) (272)
Marketable Securities, Debt, Fair Value 5,194 5,159
Cash and Cash Equivalents 647 155
Current Marketable Securities 2,030 703
Non-Current Marketable Securities 2,517 4,301
Non-U.S. government securities | Level 2    
Marketable Securities [Line Items]    
Marketable Securities, Debt, Adjusted Cost 6,756 17,959
Marketable Securities, Debt, Unrealized Gains 43 93
Marketable Securities, Debt, Unrealized Losses (567) (484)
Marketable Securities, Debt, Fair Value 6,232 17,568
Cash and Cash Equivalents 297 1,158
Current Marketable Securities 795 10,810
Non-Current Marketable Securities 5,140 5,600
Certificates of deposit and time deposits | Level 2    
Marketable Securities [Line Items]    
Marketable Securities, Debt, Adjusted Cost 3,177 873
Marketable Securities, Debt, Unrealized Gains 0 0
Marketable Securities, Debt, Unrealized Losses 0 0
Marketable Securities, Debt, Fair Value 3,177 873
Cash and Cash Equivalents 3,113 387
Current Marketable Securities 51 478
Non-Current Marketable Securities 13 8
Commercial paper | Level 2    
Marketable Securities [Line Items]    
Marketable Securities, Debt, Adjusted Cost 710 1,066
Marketable Securities, Debt, Unrealized Gains 0 0
Marketable Securities, Debt, Unrealized Losses 0 0
Marketable Securities, Debt, Fair Value 710 1,066
Cash and Cash Equivalents 710 28
Current Marketable Securities 0 1,038
Non-Current Marketable Securities 0 0
Corporate debt securities | Level 2    
Marketable Securities [Line Items]    
Marketable Securities, Debt, Adjusted Cost 49,671 65,622
Marketable Securities, Debt, Unrealized Gains 212 270
Marketable Securities, Debt, Unrealized Losses (1,251) (1,953)
Marketable Securities, Debt, Fair Value 48,632 63,939
Cash and Cash Equivalents 7 26
Current Marketable Securities 11,576 16,027
Non-Current Marketable Securities 37,049 47,886
Municipal securities | Level 2    
Marketable Securities [Line Items]    
Marketable Securities, Debt, Adjusted Cost 263 412
Marketable Securities, Debt, Unrealized Gains 0 0
Marketable Securities, Debt, Unrealized Losses (3) (7)
Marketable Securities, Debt, Fair Value 260 405
Cash and Cash Equivalents 0 0
Current Marketable Securities 157 190
Non-Current Marketable Securities 103 215
Mortgage- and asset-backed securities | Level 2    
Marketable Securities [Line Items]    
Marketable Securities, Debt, Adjusted Cost 23,424 24,595
Marketable Securities, Debt, Unrealized Gains 90 175
Marketable Securities, Debt, Unrealized Losses (1,434) (1,403)
Marketable Securities, Debt, Fair Value 22,080 23,367
Cash and Cash Equivalents 0 0
Current Marketable Securities 68 1,278
Non-Current Marketable Securities $ 22,012 $ 22,089