Financial Instruments - Cash, Cash Equivalents, and Marketable Securities Fair Value Measurements (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 26, 2026	Dec. 27, 2025
Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	$ 15,784	$ 10,026
Fair Value, Recurring | U.S. government and agency securities | U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	1,252	620
Fair Value, Recurring | Time deposits and certificates of deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	2,703	1,448
Investments, Fair Value Disclosure	2,325	1,619
Fair Value, Recurring | Non-U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	104	173
Investments, Fair Value Disclosure	86	10
Fair Value, Recurring | Asset-backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	18	22
Fair Value, Recurring | Foreign Government Short-term Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	250	245
Investments, Fair Value Disclosure	11	256
Fair Value, Recurring | us-gaap_FairValueMeasurementsRecurring-Def Comp
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	329	257
Fair Value, Recurring | Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	1,427	1,869
Investments, Fair Value Disclosure	5,931	3,107
Fair Value, Recurring | Other Long-Term Investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	1,348	400
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	6,100	3,124
Level 1 | Fair Value, Recurring | U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	1,252
Level 1 | Fair Value, Recurring | U.S. government and agency securities | U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure		620
Level 1 | Fair Value, Recurring | Time deposits and certificates of deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	1,682	1,148
Investments, Fair Value Disclosure	1,584	901
Level 1 | Fair Value, Recurring | Non-U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0	0
Investments, Fair Value Disclosure	0	0
Level 1 | Fair Value, Recurring | Asset-backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	0	0
Level 1 | Fair Value, Recurring | Foreign Government Short-term Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0	0
Investments, Fair Value Disclosure	0	0
Level 1 | Fair Value, Recurring | us-gaap_FairValueMeasurementsRecurring-Def Comp
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	329	257
Level 1 | Fair Value, Recurring | Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0	0
Investments, Fair Value Disclosure	0	0
Level 1 | Fair Value, Recurring | Other Long-Term Investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	1,253	198
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	9,658	6,700
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring | U.S. government and agency securities | U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring | Time deposits and certificates of deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	1,021	300
Investments, Fair Value Disclosure	741	718
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring | Non-U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	104	173
Investments, Fair Value Disclosure	86	10
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring | Asset-backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	18	22
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring | Foreign Government Short-term Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	250	245
Investments, Fair Value Disclosure	11	256
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring | us-gaap_FairValueMeasurementsRecurring-Def Comp
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring | Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	1,427	1,869
Investments, Fair Value Disclosure	5,931	3,107
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring | Other Long-Term Investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	69	0
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	26	202
Fair Value, Inputs, Level 3 | Fair Value, Recurring | us-gaap_FairValueMeasurementsRecurring-Def Comp
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 3 | Fair Value, Recurring | Other Long-Term Investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	$ 26	202
Foreign Exchange Contract | Cash Flow Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, term of contract	24 months
Derivative, notional amount	$ 3,200	2,300
Foreign Exchange Contract | Contracts not designated as hedging instruments:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, term of contract	3 months
Derivative, notional amount	$ 3,000	$ 1,100