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 |
Mar. 30, 2013
|
Dec. 31, 2012
|
---|---|---|
Debt Instrument [Line Items] | ||
Total Long-term Receivable | $ 69 | $ 101 |
Current Billed Due | 4 | 1 |
Past Due Under 90 Days | 0 | 2 |
Past Due Over 90 Days | 7 | 4 |
Municipal Leases Secured Tax Exempt [Member]
|
||
Debt Instrument [Line Items] | ||
Total Long-term Receivable | 8 | 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 [Member]
|
||
Debt Instrument [Line Items] | ||
Total Long-term Receivable | 61 | 78 |
Current Billed Due | 4 | 1 |
Past Due Under 90 Days | 0 | 2 |
Past Due Over 90 Days | $ 7 | $ 4 |