Assets and Liabilities Measured at Fair Value (Tables)

12 Months Ended

Dec. 31, 2016

Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis

The following tables summarize our assets and liabilities measured at fair value on a recurring basis as of December 31, 2016 and 2015, aggregated by the level in the fair value hierarchy within which those measurements fall (dollars in millions):


	December 31, 2016
	Fair Value			Fair Value Measurements Using
	Fair Value			Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)			Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
Assets:
Investments of insurance subsidiaries:
Debt securities:
States and municipalities	$	353		$	—		$	347		$	6
Money market funds		28			28			—			—

		381			28			347			6
Equity securities		4			4			—			—

Investments of insurance subsidiaries		385			32			347			6
Less amounts classified as current assets		(49	)		(28	)		(21	)		—

	$	336		$	4		$	326		$	6

Interest rate swaps (Other)	$	31		$	—		$	31		$	—

Liabilities:
Interest rate swaps (Income taxes and other liabilities)	$	12		$	—		$	12		$	—


	December 31, 2015
	Fair Value			Fair Value Measurements Using
	Fair Value			Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)			Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
Assets:
Investments of insurance subsidiaries:
Debt securities:
States and municipalities	$	444		$	—		$	438		$	6
Money market funds		34			34			—			—

		478			34			438			6
Equity securities		4			4			—			—

Investments of insurance subsidiaries		482			38			438			6
Less amounts classified as current assets		(50	)		(34	)		(16	)		—

	$	432		$	4		$	422		$	6

Liabilities:
Interest rate swaps (Income taxes and other liabilities)	$	110		$	—		$	110		$	—