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Accounts Receivable (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 12 Months Ended |
|---|---|---|
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Mar. 31, 2014
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Dec. 31, 2013
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| Accounts Receivable | ||
| Advance cash payments received from third parties to mitigate credit risk | $ 105 | $ 117 |
| Standby letters of credit | 206 | 426 |
| Net accounts receivable, maximum age of balances past their scheduled invoice date | 30 days | 30 days |
| Allowance for doubtful accounts receivable | $ 4 | $ 5 |
| X | ||||||||||
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- Definition
The maximum number of days past their scheduled invoice date for substantially all of the accounts receivable. No definition available.
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| X | ||||||||||
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- Definition
Represents a guarantee of payment issued by a financial institution that is used to support obligations due from third parties, a portion of which applies to future business. No definition available.
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| X | ||||||||||
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- Definition
A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The current portion of prepayments received from customers for goods or services to be provided in the future. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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