Segment Information (Schedule of Schedule of Revenues Earned from Customers and Property, Plant and Equipment by Geographical Areas) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 122,336	$ 122,428	$ 120,741
Net Property, Plant & Equipment	128,871	128,489	127,445
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	116,882	117,097	116,006
Net Property, Plant & Equipment	125,573	124,387	123,305
Mexico
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	4,286	3,993	3,210
Net Property, Plant & Equipment	2,981	3,750	3,718
Asia/Pacific Rim
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	462	521	592
Net Property, Plant & Equipment	82	99	124
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	441	504	584
Net Property, Plant & Equipment	139	166	201
Latin America
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	149	194	217
Net Property, Plant & Equipment	60	67	74
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	116	119	132
Net Property, Plant & Equipment	$ 36	$ 20	$ 23