Fair Value (Detail) - USD ($) $ in Millions | Sep. 28, 2019 | Dec. 29, 2018 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Reverse repurchase agreements | $ 1,845 | $ 2,099 |
Trading assets, Fair Value Disclosure | 6,241 | 5,843 |
Derivative assets, Fair Value Disclosure | 1,299 | 292 |
Derivative liabilities, Fair Value Disclosure | 407 | 890 |
Cost Method Investments | 3,287 | 2,978 |
Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, Fair Value Disclosure | 17,117 | 17,167 |
Liabilities, Fair Value Disclosure | 459 | 895 |
Fair Value, Nonrecurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Grants & loans Receivable, Reverse repurchase agreements, CV | 1,300 | 833 |
Short-term and Long-term Debt, Fair Value | 30,300 | 27,100 |
Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Trading assets, Fair Value Disclosure | 2,921 | 2,635 |
Fixed Income Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Trading assets, Fair Value Disclosure | 1,547 | 1,340 |
Government Debt [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Trading assets, Fair Value Disclosure | 1,773 | 1,868 |
Marketable Equity Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 352 | 1,440 |
Cash Equivalents [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Reverse repurchase agreements | 1,495 | 1,850 |
Cash Equivalents [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 329 | 262 |
Cash Equivalents [Member] | Fixed Income Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 1,561 | 733 |
Short-Term Investments [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 828 | 937 |
Short-Term Investments [Member] | Fixed Income Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 911 | 1,423 |
Short-Term Investments [Member] | Government Debt [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 110 | 428 |
Other Current Assets [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Derivative assets, Fair Value Disclosure | 357 | 180 |
Loans receivable, Fair Value Disclosure | 55 | 354 |
Other Long-Term Investments [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 1,900 | 1,843 |
Other Long-Term Investments [Member] | Fixed Income Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 890 | 912 |
Other Long-Term Investments [Member] | Government Debt [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 638 | 633 |
Other Long-Term Assets [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Derivative assets, Fair Value Disclosure | 956 | 100 |
Loans receivable, Fair Value Disclosure | 494 | 229 |
Other Accrued Liabilities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Derivative liabilities, Fair Value Disclosure | 440 | 412 |
Other Long-Term Liabilities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Derivative liabilities, Fair Value Disclosure | 19 | 483 |
Level 1 [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, Fair Value Disclosure | 1,585 | 2,057 |
Liabilities, Fair Value Disclosure | 0 | 0 |
Level 1 [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Trading assets, Fair Value Disclosure | 0 | 0 |
Level 1 [Member] | Fixed Income Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Trading assets, Fair Value Disclosure | 70 | 67 |
Level 1 [Member] | Government Debt [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Trading assets, Fair Value Disclosure | 0 | 0 |
Level 1 [Member] | Marketable Equity Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 352 | 1,440 |
Level 1 [Member] | Cash Equivalents [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Reverse repurchase agreements | 0 | 0 |
Level 1 [Member] | Cash Equivalents [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 0 | 0 |
Level 1 [Member] | Cash Equivalents [Member] | Fixed Income Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 1,101 | 550 |
Level 1 [Member] | Short-Term Investments [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 0 | 0 |
Level 1 [Member] | Short-Term Investments [Member] | Fixed Income Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 0 | 0 |
Level 1 [Member] | Short-Term Investments [Member] | Government Debt [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 0 | 0 |
Level 1 [Member] | Other Current Assets [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Derivative assets, Fair Value Disclosure | 62 | 0 |
Loans receivable, Fair Value Disclosure | 0 | 0 |
Level 1 [Member] | Other Long-Term Investments [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 0 | 0 |
Level 1 [Member] | Other Long-Term Investments [Member] | Fixed Income Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 0 | 0 |
Level 1 [Member] | Other Long-Term Investments [Member] | Government Debt [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 0 | 0 |
Level 1 [Member] | Other Long-Term Assets [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Derivative assets, Fair Value Disclosure | 0 | 0 |
Loans receivable, Fair Value Disclosure | 0 | 0 |
Level 1 [Member] | Other Accrued Liabilities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Derivative liabilities, Fair Value Disclosure | 0 | 0 |
Level 1 [Member] | Other Long-Term Liabilities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Derivative liabilities, Fair Value Disclosure | 0 | 0 |
Level 2 [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, Fair Value Disclosure | 15,509 | 15,110 |
Liabilities, Fair Value Disclosure | 459 | 827 |
Level 2 [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Trading assets, Fair Value Disclosure | 2,921 | 2,635 |
Level 2 [Member] | Fixed Income Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Trading assets, Fair Value Disclosure | 1,477 | 1,273 |
Level 2 [Member] | Government Debt [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Trading assets, Fair Value Disclosure | 1,773 | 1,868 |
Level 2 [Member] | Marketable Equity Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 0 | 0 |
Level 2 [Member] | Cash Equivalents [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Reverse repurchase agreements | 1,495 | 1,850 |
Level 2 [Member] | Cash Equivalents [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 329 | 262 |
Level 2 [Member] | Cash Equivalents [Member] | Fixed Income Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 460 | 183 |
Level 2 [Member] | Short-Term Investments [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 828 | 937 |
Level 2 [Member] | Short-Term Investments [Member] | Fixed Income Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 911 | 1,423 |
Level 2 [Member] | Short-Term Investments [Member] | Government Debt [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 110 | 428 |
Level 2 [Member] | Other Current Assets [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Derivative assets, Fair Value Disclosure | 295 | 180 |
Loans receivable, Fair Value Disclosure | 55 | 354 |
Level 2 [Member] | Other Long-Term Investments [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 1,900 | 1,843 |
Level 2 [Member] | Other Long-Term Investments [Member] | Fixed Income Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 890 | 912 |
Level 2 [Member] | Other Long-Term Investments [Member] | Government Debt [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 638 | 633 |
Level 2 [Member] | Other Long-Term Assets [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Derivative assets, Fair Value Disclosure | 933 | 100 |
Loans receivable, Fair Value Disclosure | 494 | 229 |
Level 2 [Member] | Other Accrued Liabilities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Derivative liabilities, Fair Value Disclosure | 440 | 412 |
Level 2 [Member] | Other Long-Term Liabilities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Derivative liabilities, Fair Value Disclosure | 19 | 415 |
Level 3 [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets, Fair Value Disclosure | 23 | 0 |
Liabilities, Fair Value Disclosure | 0 | 68 |
Level 3 [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Trading assets, Fair Value Disclosure | 0 | 0 |
Level 3 [Member] | Fixed Income Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Trading assets, Fair Value Disclosure | 0 | 0 |
Level 3 [Member] | Government Debt [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Trading assets, Fair Value Disclosure | 0 | 0 |
Level 3 [Member] | Marketable Equity Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 0 | 0 |
Level 3 [Member] | Cash Equivalents [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Reverse repurchase agreements | 0 | 0 |
Level 3 [Member] | Cash Equivalents [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 0 | 0 |
Level 3 [Member] | Cash Equivalents [Member] | Fixed Income Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 0 | 0 |
Level 3 [Member] | Short-Term Investments [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 0 | 0 |
Level 3 [Member] | Short-Term Investments [Member] | Fixed Income Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 0 | 0 |
Level 3 [Member] | Short-Term Investments [Member] | Government Debt [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 0 | 0 |
Level 3 [Member] | Other Current Assets [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Derivative assets, Fair Value Disclosure | 0 | 0 |
Loans receivable, Fair Value Disclosure | 0 | 0 |
Level 3 [Member] | Other Long-Term Investments [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 0 | 0 |
Level 3 [Member] | Other Long-Term Investments [Member] | Fixed Income Securities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 0 | 0 |
Level 3 [Member] | Other Long-Term Investments [Member] | Government Debt [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investments, Fair Value Disclosure | 0 | 0 |
Level 3 [Member] | Other Long-Term Assets [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Derivative assets, Fair Value Disclosure | 23 | 0 |
Loans receivable, Fair Value Disclosure | 0 | 0 |
Level 3 [Member] | Other Accrued Liabilities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Derivative liabilities, Fair Value Disclosure | 0 | 0 |
Level 3 [Member] | Other Long-Term Liabilities [Member] | Fair Value, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Derivative liabilities, Fair Value Disclosure | $ 0 | $ 68 |