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DERIVATIVES (Details) - USD ($)	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Derivative [Line Items]
Aggregate notional amount of interest rate swaps	$ 525,000,000		$ 725,000,000
Interest Rate Swap | Fair Value Hedging
Derivative [Line Items]
Aggregate notional amount of interest rate swaps	525,000,000
Face value of medium-term notes			$ (10,000,000)
Interest Rate Swap | Cash Flow Hedging
Derivative [Line Items]
Aggregate notional amount of interest rate swaps	215,000,000
Face value of medium-term notes	$ 9,000,000
Cross Currency Interest Rate Contract | Cash Flow Hedging
Derivative [Line Items]
Aggregate notional amount of interest rate swaps		$ 50,000,000

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

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X

- Definition

Amount of hedged item in hedging relationship. Excludes hedged asset or liability.

+ References

No definition available.

+ Details

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X

- 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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- Details

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- Details

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- Details

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