FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Mar. 31, 2017

Fair Value Disclosures [Abstract]

Assets and Liabilities at Fair Value Subject to Three-Tier Hierarchy

Our assets and liabilities measured at fair value subject to the three-tier hierarchy at March 31, 2017, were as follows:

	Fair Value Measurements at Reporting Date Using
	Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs			Significant Unobservable Inputs
(in millions)	(Level 1)		(Level 2)			(Level 3)
Financial assets measured on a recurring basis:
Mutual funds — fixed income securities	$	42	$	—		$	—
Mutual funds — equity securities	2		—			—
Interest rate swap derivatives	—		8			—
Financial liabilities measured on a recurring basis:
Interest rate swap derivatives	—		(1		)	—
Total	$	44	$	7		$	—

Our assets measured at fair value subject to the three-tier hierarchy at December 31, 2016, were as follows:

	Fair Value Measurements at Reporting Date Using
	Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
(in millions)	(Level 1)		(Level 2)		(Level 3)
Financial assets measured on a recurring basis:
Mutual funds — fixed income securities	$	42	$	—	$	—
Mutual funds — equity securities	1		—		—
Interest rate swap derivatives	—		8		—
Total	$	43	$	8	$	—