Segment Information Geographic Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	$ 60,037	$ 63,500	$ 65,034
Revenues	158,057	136,341	127,144
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	41,925	44,271	45,360
Revenues	105,481	87,012	82,535
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	5,739	5,773	5,111
Revenues	12,590	11,153	8,711
Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	2,483	2,708	3,197
Revenues	6,471	6,237	6,526
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	1,264	1,383	1,401
Revenues	8,220	7,607	6,110
MEXICO
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	4,255	3,903	3,669
Revenues	1,813	1,440	1,030
All Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	4,371	5,462	6,296
Revenues	$ 23,482	$ 22,892	$ 22,232