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Litigation And Other Contingencies (Schedule Of Guarantees) (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
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|---|---|---|---|---|
| Loss Contingencies [Line Items] | ||||
| Guarantees | $ 8,456 | |||
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Equity Company Obligations [Member]
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| Loss Contingencies [Line Items] | ||||
| Guarantees | 4,607 | [1] | ||
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Other Third-Party Obligations [Member]
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| Loss Contingencies [Line Items] | ||||
| Guarantees | 3,849 | |||
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Debt-Related Guarantees [Member]
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| Loss Contingencies [Line Items] | ||||
| Guarantees | 1,611 | |||
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Debt-Related Guarantees [Member] | Equity Company Obligations [Member]
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| Loss Contingencies [Line Items] | ||||
| Guarantees | 1,546 | [1] | ||
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Debt-Related Guarantees [Member] | Other Third-Party Obligations [Member]
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| Loss Contingencies [Line Items] | ||||
| Guarantees | 65 | |||
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Other Guarantees [Member]
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| Loss Contingencies [Line Items] | ||||
| Guarantees | 6,845 | |||
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Other Guarantees [Member] | Equity Company Obligations [Member]
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| Loss Contingencies [Line Items] | ||||
| Guarantees | 3,061 | [1] | ||
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Other Guarantees [Member] | Other Third-Party Obligations [Member]
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| Loss Contingencies [Line Items] | ||||
| Guarantees | $ 3,784 | |||
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