Fair Value Measurements - Transfers Between Levels & Contingent Consideration (Details) - USD ($) $ in Millions		3 Months Ended
	Jul. 29, 2016	Mar. 31, 2019	Apr. 01, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent Consideration Commission payable		$ 41
Business Combination, Contingent Consideration, Liability, Current		10	$ 10
Contingent Consideration basis		$ 2,000
Lattice
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent Consideration	$ 60
Contingent Consideration Payment Period	4 years
Lattice | Contingent Obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate		12.70%
Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent Consideration Commission payable		$ 31
Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent Consideration basis		$ 4,100