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Fair Value Measurements - Summary of Activity Related to Equity Investments (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Dec. 30, 2018
Equity Investment [Roll Forward]
Non Current Other Assets	$ 5,430	$ 4,182
Equity Securities | Equity Investments with readily determinable value
Equity Investment [Roll Forward]
Carrying value, beginning of period	511
Changes in Fair Value Reflected in Net Income	292
Sales/ Purchases/Other	160
Carrying value, end of period	963
Non Current Other Assets	963
Equity Securities | Equity Investments without readily determinable value
Equity Investment [Roll Forward]
Carrying value, beginning of period	681
Changes in Fair Value Reflected in Net Income	(23)
Sales/ Purchases/Other	19
Carrying value, end of period	677
Non Current Other Assets	$ 677

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Amount of investment in marketable security, classified as noncurrent.

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