Annual report pursuant to Section 13 and 15(d)

Investments Investments, Equity Investments (Details)

v3.21.4
Investments Investments, Equity Investments (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 27, 2021
Dec. 25, 2021
Dec. 26, 2020
Dec. 28, 2019
Schedule of Investments [Line Items]        
Marketable equity securities   $ 2,171 $ 1,830  
Non-marketable equity securities   4,111 3,304  
Equity method investments   16 18  
Total   6,298 5,152  
Ongoing mark-to-market adjustments on marketable equity securities   (130) (133) $ 277
Observable price adjustments on non-marketable equity securities   (750) (176) (293)
Impairment charges   (154) (303) (122)
Sale of equity investments and other   2,263 2,164 1,091
Gain (Loss) on Investments   2,729 1,904 1,539
Net gains (losses) recognized during the period on equity securities   1,210 1,679 734
Less: Net (gains) losses recognized during the period on equity securities sold during the period   (259) (254) (424)
Net unrealized gains (losses) recognized during the period on equity securities still held at the reporting date   951 1,425 310
Proceeds from Equity Method Investment, Distribution, Return of Capital   $ 581 910 2,688
McAfee [Member]        
Schedule of Investments [Line Items]        
Equity Method Investment, Ownership Percentage   41.00%    
Proceeds from Equity Method Investment, Distribution, Return of Capital   $ 1,300 126 632
Cash proceeds from sale of equity method investment   228    
McAfee [Member] | McAfee Enterprise Business        
Schedule of Investments [Line Items]        
Proceeds from Equity Method Investment, Distribution, Return of Capital   1,100    
Bejing Unisoc Technology Ltd.        
Schedule of Investments [Line Items]        
Net gains (losses) recognized during the period on equity securities $ 471      
Equity Securities, FV-NI, Cost   1,100 658  
Cost-method Investments [Member]        
Schedule of Investments [Line Items]        
Impairment charges   $ (154) $ (290) $ (122)