Summary Of Significant Accounting Policies (Schedule Of Inventories) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
LIFO inventories
Inventory, Finished Goods, Net of Reserves	$ 7,796	$ 7,150
Total inventories	14,771	14,481
Inventory, Raw Materials and Supplies, Net of Reserves	$ 6,975	$ 7,331