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DEBT - Commercial Paper (Details) - USD ($) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2017 | Dec. 31, 2016
Short-term Debt [Line Items] |  |
Outstanding borrowings | $ 701,000,000 | $ 300,000,000
Commercial Paper |  |
Short-term Debt [Line Items] |  |
Maximum borrowing capacity | 2,000,000,000 |
Maximum amount outstanding during period | 500,000,000 |
Outstanding borrowings | $ 200,000,000 | $ 300,000,000

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- Definition For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, the maximum amount borrowed at any time during the period. + References No definition available. + Details
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