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Borrowings, Short-term Debt (Detail) - USD ($)
Dec. 29, 2018
Dec. 30, 2017
Short-term Debt [Line Items]    
Commercial paper and drafts payable $ 500,000,000 $ 37,000,000
Current portion of long-term debt 761,000,000 1,739,000,000
Total short-term debt 1,261,000,000 $ 1,776,000,000
Commercial Paper [Member]    
Short-term Debt [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity $ 10,000,000,000