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Fair Value Measurements - Summary of Activity Related to Equity Investments (Details) - USD ($) $ in Millions	9 Months Ended
	Oct. 03, 2021	Jan. 03, 2021
Equity Investment [Roll Forward]
Non Current Other Assets	$ 6,870	$ 6,562
Equity Securities
Equity Investment [Roll Forward]
Changes in Fair Value Reflected in Net Income	417
Equity Securities | Equity Investments with readily determinable value
Equity Investment [Roll Forward]
Carrying value, beginning of period	1,481
Changes in Fair Value Reflected in Net Income	(83)
Sales/ Purchases/Other	469
Carrying value, end of period	1,867
Non Current Other Assets	1,867
Equity Securities | Equity Investments without readily determinable value
Equity Investment [Roll Forward]
Carrying value, beginning of period	738
Changes in Fair Value Reflected in Net Income	392
Sales/ Purchases/Other	(545)
Carrying value, end of period	585
Non Current Other Assets	$ 585

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