Annual report pursuant to Section 13 and 15(d)

Investments, Trading Assets (Detail)

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Investments, Trading Assets (Detail) - Debt Securities [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Schedule Of Trading Securities And Other Trading Assets [Line Items]      
Trading Securities, Change in Unrealized Holding Gain (Loss) $ 26 $ (188) $ 414
Unrealized Gain (Loss) on Derivatives $ 22 $ 163 $ (422)