Annual report [Section 13 and 15(d), not S-K Item 405]

Fair Value (Details)

v3.25.4
Fair Value (Details) - USD ($)
$ in Millions
Dec. 27, 2025
Dec. 28, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Asset, Current $ 1,039 $ 1,081
Derivative Assets, Fair Value Disclosure 2 1
Assets, Fair Value Disclosure $ 38,180 $ 23,261
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration] Other Assets, Current Other Assets, Current
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration] Other long-term assets Other long-term assets
Derivative Liability, Current $ 1,834 $ 696
Derivative Liability, Noncurrent 2,290 1,171
Liabilities, Fair Value Disclosure $ 4,124 $ 1,867
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration] Other accrued liabilities Other accrued liabilities
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Other long-term liabilities Other long-term liabilities
Long-term Debt, Fair Value $ 41,800 $ 43,500
Carrying Value [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Grants receivable 652 1,700
Equity securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 484 848
Cash Equivalents [Member] | Corporate debt    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 150 0
Cash Equivalents [Member] | Financial institution instruments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 9,092 4,864
Cash Equivalents [Member] | Repurchase Agreements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 4,262 2,654
Short-Term Investments [Member] | Corporate debt    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 7,248 5,365
Short-Term Investments [Member] | Financial institution instruments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 4,174 3,551
Short-Term Investments [Member] | Government Debt Securities [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 11,729 4,897
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Asset, Current 431 348
Derivative Assets, Fair Value Disclosure 0 0
Assets, Fair Value Disclosure 13,686 5,545
Derivative Liability, Current 6 0
Derivative Liability, Noncurrent 0 0
Liabilities, Fair Value Disclosure 6 0
Level 1 | Equity securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 484 848
Level 1 | Cash Equivalents [Member] | Corporate debt    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 0 0
Level 1 | Cash Equivalents [Member] | Financial institution instruments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 7,292 4,121
Level 1 | Cash Equivalents [Member] | Repurchase Agreements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 0 0
Level 1 | Short-Term Investments [Member] | Corporate debt    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 0 0
Level 1 | Short-Term Investments [Member] | Financial institution instruments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 183 195
Level 1 | Short-Term Investments [Member] | Government Debt Securities [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 5,296 33
Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Asset, Current 608 733
Derivative Assets, Fair Value Disclosure 2 1
Assets, Fair Value Disclosure 24,494 17,716
Derivative Liability, Current 1,524 562
Derivative Liability, Noncurrent 1,714 416
Liabilities, Fair Value Disclosure 3,238 978
Level 2 | Equity securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 0 0
Level 2 | Cash Equivalents [Member] | Corporate debt    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 150 0
Level 2 | Cash Equivalents [Member] | Financial institution instruments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 1,800 743
Level 2 | Cash Equivalents [Member] | Repurchase Agreements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 4,262 2,654
Level 2 | Short-Term Investments [Member] | Corporate debt    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 7,248 5,365
Level 2 | Short-Term Investments [Member] | Financial institution instruments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 3,991 3,356
Level 2 | Short-Term Investments [Member] | Government Debt Securities [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 6,433 4,864
Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Asset, Current 0 0
Derivative Assets, Fair Value Disclosure 0 0
Assets, Fair Value Disclosure 0 0
Derivative Liability, Current 304 134
Derivative Liability, Noncurrent 576 755
Liabilities, Fair Value Disclosure 880 889
Level 3 | Equity securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 0 0
Level 3 | Cash Equivalents [Member] | Corporate debt    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 0 0
Level 3 | Cash Equivalents [Member] | Financial institution instruments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 0 0
Level 3 | Cash Equivalents [Member] | Repurchase Agreements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 0 0
Level 3 | Short-Term Investments [Member] | Corporate debt    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 0 0
Level 3 | Short-Term Investments [Member] | Financial institution instruments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure 0 0
Level 3 | Short-Term Investments [Member] | Government Debt Securities [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, Fair Value Disclosure $ 0 $ 0