Current Maturities Classified as Long Term Debt

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Debt Instruments Purchase Price Percentage

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Debt To Consolidated Net Worth Ratio

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Amount borrowed in letters of credit under the credit facility as of the balance-sheet date.

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Represents the total amount of outstanding letters of credit and surety bonds, which primarily guarantee the payment of insurance claims.

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Number of lending institutions.

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Number of Days Under Trade Receivables Purchase And Sale Program

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The maximum proceeds that may be received under the trade receivables purchase and sale program.

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Carrying value as of the balance sheet date of long-term unsecured obligations issued by corporations and other borrowers to investors (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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Face (par) amount of debt instrument at time of issuance.

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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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.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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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.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.

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The cash inflow from amounts received from issuance of long-term debt that is wholly or partially secured by collateral. Excludes proceeds from tax exempt secured debt.

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Indebtedness divided by net capital.

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No definition available.

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The face amount of accounts receivable that will be sold to other entities.

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Debt (Details Textual)	1 Months Ended	9 Months Ended
Debt (Details Textual)	Jun. 30, 2017 USD ($)	Sep. 30, 2017 USD ($) instution	Aug. 31, 2017 USD ($)	Feb. 28, 2017 USD ($)	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 1,200,000,000.0
Number of lending institutions \| instution		12
Annual facility fees, percentage		0.10%
Ratio of debt to consolidated net worth		3.00
Debt to consolidated tangible net worth ratio		192.00%
Line of credit remaining capacity		$ 664,000,000
Total available proceeds under trade receivables purchase and sale program		$ 175,000,000
Number of days under trade receivables purchase and sale program		364 days
Trade receivables borrowings		$ 0			$ 0
Letters of credit and surety bonds outstanding		357,000,000			354,000,000
Fair value of total debt		4,890,000,000			4,970,000,000
U.S commercial paper
Debt Instrument [Line Items]
Commercial paper classified as long term debt		468,540,000			342,480,000
Unsecured U.S. obligations
Debt Instrument [Line Items]
Current portion of long-term debt					350,000,000
Unsecured U.S. obligations		$ 50,000,000			$ 50,000,000
Unsecured medium term notes due September 2022
Debt Instrument [Line Items]
Face amount of unsecured medium-term notes issued			$ 300,000,000
Unsecured medium term notes due March 2022
Debt Instrument [Line Items]
Face amount of unsecured medium-term notes issued				$ 300,000,000
Debt repurchase price, percentage		101.00%
Asset-backed U.S. obligations
Debt Instrument [Line Items]
Proceeds from financing transactions	$ 98,000,000
Letter of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 75,000,000
Letter of credit outstanding amount		$ 0
Minimum
Debt Instrument [Line Items]
Annual facility fees, percentage		0.075%
Maximum
Debt Instrument [Line Items]
Annual facility fees, percentage		0.25%