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Summary of Accounting Principles (Long-Term Receivables) (Details) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015
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Financing Receivable, Recorded Investment [Line Items] |  |
Total Long Term Receivable | $ 1,356 | $ 1,354
Percentage Long Term Receivables High Credit Risk | 13.00% |
Financing Receivable, Reserve for Credit Losses and Exposure, Individually Evaluated For Impairment | $ 17 | 18
Long-term Trade Accounts Receivable [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Long Term Receivable | 926 | 903
Notes and Leases Receivable [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Long Term Receivable | $ 430 | $ 451

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The reserve for credit losses and exposure for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References No definition available. + Details
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- Definition The percentage of long-term receivables that are considered to bear high credit risk based upon the customer credit ratings. + References No definition available. + Details
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