Description of business, including segment and geographic area information - Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Total revenue	$ 4,643	$ 3,817	$ 13,512	$ 10,385
Total operating profit	2,305	1,609	6,457	4,081
Analog
Segment Reporting Information [Line Items]
Total revenue	3,548	2,865	10,292	7,759
Total operating profit	1,871	1,320	5,295	3,398
Embedded Processing
Segment Reporting Information [Line Items]
Total revenue	738	651	2,285	1,850
Total operating profit	282	187	881	494
Other
Segment Reporting Information [Line Items]
Total revenue	357	301	935	776
Total operating profit	$ 152	$ 102	$ 281	$ 189