Investments, Trading Assets (Detail) - Debt Securities [Member] - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 27, 2020 |
Jun. 29, 2019 |
Jun. 27, 2020 |
Jun. 29, 2019 |
|
| Schedule Of Trading Securities And Other Trading Assets [Line Items] | ||||
| Debt Securities, Trading, Unrealized Gain (Loss) | $ 347 | $ 117 | $ 183 | $ 99 |
| Unrealized Gain (Loss) on Derivatives | $ 251 | $ 102 | $ 204 | $ (104) |
| X | ||||||||||
- Definition Amount of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in net income (trading). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|