Segment and Geographic Information (Tables)

6 Months Ended

Jun. 30, 2017

Segment Reporting [Abstract]

Schedule of Geographic Distributions of Revenues, Equity in Earnings of Affiliates, Adjusted Segment EBITDA and Depreciation and Amortization

The geographic distributions of our revenues, equity in earnings of affiliates, adjusted segment EBITDA and depreciation and amortization for the quarters and six months ended June 30, 2017 and 2016 are summarized in the following table (dollars in millions):

	Quarter						Six Months
	2017			2016			2017			2016
Revenues:
National Group	$	5,160		$	4,931		$	10,308		$	9,898
American Group		5,093			4,860			10,088			9,646
Corporate and other		480			528			960			1,035
	$	10,733		$	10,319		$	21,356		$	20,579
Equity in earnings of affiliates:
National Group	$	(4	)	$	(2	)	$	(9	)	$	(4	)
American Group		(10	)		(8	)		(18	)		(17	)
Corporate and other		1			—			4			(1	)
	$	(13	)	$	(10	)	$	(23	)	$	(22	)
Adjusted segment EBITDA:
National Group	$	1,162		$	1,131		$	2,293		$	2,269
American Group		1,040			1,004			2,047			1,986
Corporate and other		(112	)		(83	)		(245	)		(200	)
	$	2,090		$	2,052		$	4,095		$	4,055
Depreciation and amortization:
National Group	$	217		$	201		$	431		$	398
American Group		238			225			476			444
Corporate and other		66			63			135			126
	$	521		$	489		$	1,042		$	968
Adjusted segment EBITDA	$	2,090		$	2,052		$	4,095		$	4,055
Depreciation and amortization		521			489			1,042			968
Interest expense		411			427			830			843
Gains on sales of facilities		(2	)		(6	)		(3	)		(5	)
Legal claim costs		—			10			—			22
Income before income taxes	$	1,160		$	1,132		$	2,226		$	2,227