Litigation And Other Contingencies (Schedule Of Guarantees) (Details) $ in Millions	Dec. 31, 2024 USD ($)
Loss Contingencies [Line Items]
Guarantees	$ 7,883
Equity Company Obligations [Member]
Loss Contingencies [Line Items]
Guarantees	1,751
Other Third-Party Obligations [Member]
Loss Contingencies [Line Items]
Guarantees	6,132
Debt-Related Guarantees [Member]
Loss Contingencies [Line Items]
Guarantees	1,240
Debt-Related Guarantees [Member] | Equity Company Obligations [Member]
Loss Contingencies [Line Items]
Guarantees	1,073
Debt-Related Guarantees [Member] | Other Third-Party Obligations [Member]
Loss Contingencies [Line Items]
Guarantees	167
Other Guarantees [Member]
Loss Contingencies [Line Items]
Guarantees	6,643
Other Guarantees [Member] | Equity Company Obligations [Member]
Loss Contingencies [Line Items]
Guarantees	678
Other Guarantees [Member] | Other Third-Party Obligations [Member]
Loss Contingencies [Line Items]
Guarantees	$ 5,965