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Long-Term Debt and Short-Term Borrowings - Credit Facilities (Details) $ in Millions | 1 Months Ended | 12 Months Ended
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Mar. 31, 2016 USD ($) | Dec. 31, 2017 USD ($)
Five-year credit facility agreement |  |
Debt instrument |  |
Term of debt instrument | 5 years | 5 years
Credit facility amount prior to new agreement | $ 2,250 |
Current borrowing capacity |  | $ 3,750
Maximum increase available subject to lender approval |  | 1,250
Maximum borrowing capacity including portion subject to lender approval |  | $ 5,000
Required minimum EBITDA to Interest Ratio |  | 3.0
Number of consecutive quarters over which the ratio of required EBITDA to Interest Ratio is calculated |  | 4
Actual EBITDA to Interest Ratio |  | 29
Stand alone letters of credit and bank guarantees |  |
Debt instrument |  |
Amount of stand alone letters of credit and bank guarantees outstanding utilized in connection with normal business activities |  | $ 288

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- Definition The amount of the maximum increase available that is subject to lender approval. + References No definition available. + Details
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- Definition Borrowing capacity of existing credit facility before amendment to new credit facility. + References No definition available. + Details
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- Definition The required minimum EBITDA to interest ratio is calculated as the ratio of consolidated total EBITDA for the four consecutive quarters then ended to total interest expense on all funded debt for the same period. + References No definition available. + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Market valuation of entity divided by earnings before interest, taxes, depreciation, and amortization (EBITDA), used as an input to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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