Performance Obligation (Details) $ in Millions	9 Months Ended
	Sep. 30, 2020 USD ($)
Revenue Recognition [Line Items]
Revenue, Remaining Performance Obligation	$ 13,010
Contract with Customer, Liability, Revenue Recognized	$ 306
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Explanation	we expect to recognize approximately 30% of the revenue over the next 12 months and the remainder thereafter