Goodwill and Intangible Assets, net (Schedule of Finite-lived intangible assets) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Finite-Lived Intangible Assets [Line Items]
As of December 31, 2019	$ 809
Exchange rate changes	(13)
As of March 31, 2020	796
As of December 31, 2019	(612)
Amortization	(5)	$ (6)
Exchange rate changes	10
As of March 31, 2020	(607)
Net book value	189
Licensing Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
As of December 31, 2019	42
Exchange rate changes	(1)
As of March 31, 2020	41
As of December 31, 2019	(35)
Amortization	0
Exchange rate changes	1
As of March 31, 2020	(34)
Net book value	7
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
As of December 31, 2019	667
Exchange rate changes	(12)
As of March 31, 2020	655
As of December 31, 2019	(504)
Amortization	(4)
Exchange rate changes	9
As of March 31, 2020	(499)
Net book value	156
Developed Technology Rights [Member]
Finite-Lived Intangible Assets [Line Items]
As of December 31, 2019	44
Exchange rate changes	0
As of March 31, 2020	44
As of December 31, 2019	(35)
Amortization	(1)
Exchange rate changes	0
As of March 31, 2020	(36)
Net book value	8
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
As of December 31, 2019	56
Exchange rate changes	0
As of March 31, 2020	56
As of December 31, 2019	(38)
Amortization	0
Exchange rate changes	0
As of March 31, 2020	(38)
Net book value	$ 18