Long-term Customer Financing and Sales Of Receivables (Credit Quality Of Customer Financing Receivables And Allowance For Credit Losses) (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2013
|
Dec. 31, 2012
|
---|---|---|
Debt Instrument [Line Items] | ||
Total Long-term Receivable | $ 27 | $ 73 |
Current Billed Due | 10 | 0 |
Past Due Under 90 Days | 2 | 2 |
Past Due Over 90 Days | 10 | 4 |
Municipal Leases Secured Tax Exempt
|
||
Debt Instrument [Line Items] | ||
Total Long-term Receivable | 1 | 23 |
Current Billed Due | 0 | 0 |
Past Due Under 90 Days | 0 | 0 |
Past Due Over 90 Days | 0 | 0 |
Commercial Loans And Leases Secured
|
||
Debt Instrument [Line Items] | ||
Total Long-term Receivable | 26 | 50 |
Current Billed Due | 10 | 0 |
Past Due Under 90 Days | 2 | 2 |
Past Due Over 90 Days | $ 10 | $ 4 |