Fair Value Measurements - Summary of Activity Related to Equity Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 30, 2018	Dec. 31, 2017
Equity Investment [Roll Forward]
Other Assets, Noncurrent	$ 4,182	$ 4,971
Equity securities | Equity Investments with Readily Determinable Value
Other Investment Not Readily Marketable [Line Items]
Marketable Securities, Noncurrent	511	751
Equity Investment [Roll Forward]
Equity, Fair Value Adjustment	(247)
Equity Investments, Increase (Decrease) from Acquisition (Sale) During Period	7
Other Assets, Noncurrent	511
Equity securities | Equity Investments without Readily Determinable Value
Equity Investment [Roll Forward]
Equity, Fair Value Adjustment	13
Equity Investments, Increase (Decrease) from Acquisition (Sale) During Period	158
Other Assets, Noncurrent	681
Cost Method Investments	$ 681	$ 510