Description of business, including segment and geographic area information - Geographic Area Information (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Total revenue		$ 3,329	$ 3,594
United States
Segment Reporting Information [Line Items]
Total revenue		390	477
Asia
Segment Reporting Information [Line Items]
Total revenue	[1]	2,027	2,092
Europe, Middle East and Africa
Segment Reporting Information [Line Items]
Total revenue		619	743
Japan
Segment Reporting Information [Line Items]
Total revenue		190	191
Rest of world
Segment Reporting Information [Line Items]
Total revenue		103	91
China
Segment Reporting Information [Line Items]
Total revenue		$ 1,700	$ 1,700

[1] Revenue from products shipped into China was $1.7 billion in the first quarters of both 2020 and 2019, which includes shipments to customers that manufacture in China and then export end products to their customers around the world, as well as distributors that transship inventory through China to service other countries.