Segment Information (Schedule Of Operations In Geographical Areas) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 22,284	$ 17,911	$ 17,049
Property, plant and equipment, net	3,262	2,302	2,250
Reportable geographical components | United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	8,616	6,660	6,134
Property, plant and equipment, net	1,317	1,077	1,081
Reportable geographical components | China
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	2,688	2,308	2,170
Reportable geographical components | Sweden
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	553	32	32
Reportable geographical components | Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	1,238	1,013	1,082
Property, plant and equipment, net	207	163	169
Reportable geographical components | United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	214	163	157
Reportable geographical components | All other (each country individually less than 5% of total)
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	9,742	7,930	7,663
Property, plant and equipment, net	$ 971	$ 867	$ 811
Geographic concentration risk | Reportable geographical components | Total sales
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage	5.00%	5.00%	5.00%
Geographic concentration risk | Reportable geographical components | Total property, plant and equipment
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage	5.00%	5.00%	5.00%