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Depreciation and Amortization	3 Months Ended
	Mar. 31, 2018
Depreciation, Depletion and Amortization [Abstract]
Depreciation and Amortization	DEPRECIATION AND AMORTIZATION Depreciation and amortization expense was $34 million and $31 million for the three-month periods ended March 31, 2018 and 2017, respectively.

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The entire disclosure for depreciation and amortization expense.

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No definition available.

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