| Restructuring and Other Charges (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
| Jun. 26, 2021 | Mar. 27, 2021 | Jun. 27, 2020 | Jun. 26, 2021 | Jun. 27, 2020 | |
| Restructuring and Related Activities [Abstract] | |||||
| Employee severance and benefit arrangements | $ 15 | $ 1 | $ 22 | $ 106 | |
| Litigation charges and other | 49 | 0 | 2,251 | 57 | |
| Asset impairment charges | 282 | 8 | 282 | 8 | |
| Restructuring and other charges | 346 | $ 9 | $ 2,555 | $ 171 | |
| Litigation charges | $ 2,200 | ||||
| Goodwill impairment charge | $ 237 | ||||
| X | ||||||||||
| 
- Definition Litigation Charges and Other No definition available. 
 | 
| X | ||||||||||
| 
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
 | 
| X | ||||||||||
| 
- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
 | 
| X | ||||||||||
| 
- Definition Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees. No definition available. 
 | 
| X | ||||||||||
| 
- References No definition available. 
 | 
| X | ||||||||||
| 
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
 | 
| X | ||||||||||
| 
- Definition Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
 |