Description of business, including segment and geographic area information - Geographic Area Information (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information [Line Items]
Total revenue		$ 3,817	$ 3,771	$ 10,385	$ 11,033
United States
Segment Reporting Information [Line Items]
Total revenue		440	504	1,179	1,468
Asia
Segment Reporting Information [Line Items]
Total revenue	[1]	2,555	2,263	6,756	6,512
Europe, Middle East and Africa
Segment Reporting Information [Line Items]
Total revenue		578	699	1,648	2,151
Japan
Segment Reporting Information [Line Items]
Total revenue		140	198	523	607
Rest of world
Segment Reporting Information [Line Items]
Total revenue		104	107	279	295
China
Segment Reporting Information [Line Items]
Total revenue		$ 2,200	$ 1,900	$ 5,700	$ 5,400

[1] Revenue from products shipped into China was $2.2 billion and $1.9 billion in the third quarters of 2020 and 2019, respectively, and $5.7 billion and $5.4 billion in the first nine months of 2020 and 2019, respectively, 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.