Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions					3 Months Ended			9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	May 20, 2020	Dec. 31, 2019	Sep. 30, 2020	Jun. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Payments for legal settlements		$ 20
Net sales					$ 371		$ 462	$ 918	$ 1,446
Operating lease right-of-use assets	$ 86			$ 100	86			86
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating Lease, liability										$ 75
Operating lease right-of-use assets										$ 75
Other Current Liabilities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income	$ 15				$ 15			15
Research, Development and Implementation of Change
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net sales			$ 65
Future Software Development
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net sales			$ 11
Research, Development and Software Adjustment Agreement
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net sales						$ 76
Engineering Services
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reimbursements from customers								$ 82
Revenue from Contract with Customer | Customer Concentration Risk | Four Largest Customers [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, percentage					55.00%		61.00%	57.00%	59.00%
Accounts Receivable | Customer Concentration Risk | Four Largest Customers [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, percentage	41.00%			39.00%