Revenue from Contracts with Customers Performance Obligation (Details) $ in Millions	6 Months Ended
	Jun. 29, 2019 USD ($)
Revenue Recognition [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 14,980
Contract with Customer, Liability, Revenue Recognized	$ 266
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Explanation	we expect to recognize approximately 29% of the revenue over the next 12 months and the remainder thereafter