Goodwill and Intangible Assets, net (Schedule of Finite-lived intangible assets) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Finite-Lived Intangible Assets [Line Items]
As of December 31, 2020			$ 869
Exchange rate changes			(14)
As of June 30, 2021	$ 855		855
As of December 31, 2020			(672)
Amortization	(5)	$ (6)	(11)	$ (11)
Exchange rate changes			12
As of June 30, 2021	(671)		(671)
Net book value	184		184
Licensing Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
As of December 31, 2020			44
Exchange rate changes			0
As of June 30, 2021	44		44
As of December 31, 2020			(38)
Amortization			(1)
Exchange rate changes			0
As of June 30, 2021	(39)		(39)
Net book value	5		5
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
As of December 31, 2020			724
Exchange rate changes			(14)
As of June 30, 2021	710		710
As of December 31, 2020			(555)
Amortization			(9)
Exchange rate changes			13
As of June 30, 2021	(551)		(551)
Net book value	159		159
Developed Technology Rights [Member]
Finite-Lived Intangible Assets [Line Items]
As of December 31, 2020			45
Exchange rate changes			0
As of June 30, 2021	45		45
As of December 31, 2020			(40)
Amortization			(1)
Exchange rate changes			0
As of June 30, 2021	(41)		(41)
Net book value	4		4
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
As of December 31, 2020			56
Exchange rate changes			0
As of June 30, 2021	56		56
As of December 31, 2020			(39)
Amortization			0
Exchange rate changes			(1)
As of June 30, 2021	(40)		(40)
Net book value	$ 16		$ 16