Supplemental financial information - Property, plant and equipment at cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost	$ 9,950	$ 7,858
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost	132	132
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost	$ 4,154	3,490
Buildings and improvements \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost, depreciable lives	5 years
Buildings and improvements \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost, depreciable lives	40 years
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost	$ 5,664	$ 4,236
Machinery and equipment \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost, depreciable lives	2 years
Machinery and equipment \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost, depreciable lives	10 years