Segment Information (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Schedule of segment information

The following table summarizes our segment results for 2014, 2013 and 2012 based on the segment categorization we were operating under at December 31, 2014.

	Years Ended December 31,
	2014			2013		2012
	(Dollars in millions)
Total segment revenues	$	17,028		17,095		17,320
Total segment expenses	8,509			8,167		8,147
Total segment income	$	8,519		8,928		9,173
Total margin percentage	50		%	52	%	53	%
Business:
Revenues	$	11,034		11,091		11,156
Expenses	6,089			5,808		5,729
Income	$	4,945		5,283		5,427
Margin percentage	45		%	48	%	49	%
Consumer:
Revenues	$	5,994		6,004		6,164
Expenses	2,420			2,359		2,418
Income	$	3,574		3,645		3,746
Margin percentage	60		%	61	%	61	%

Schedule of operating revenues by products and services

Our operating revenues for our products and services consisted of the following categories for the years ended December 31, 2014, 2013 and 2012:

	Years Ended December 31,
	2014		2013	2012
	(Dollars in millions)
Strategic services	$	9,200	8,823	8,427
Legacy services	7,138		7,616	8,221
Data integration	690		656	672
Other	1,003		1,000	1,056
Total operating revenues	$	18,031	18,095	18,376

Schedule of reconciliation from segment income to consolidated net income

The following table reconciles segment income to net income for the years ended December 31, 2014, 2013 and 2012:

	Years Ended December 31,
	2014			2013		2012
	(Dollars in millions)
Total segment income	$	8,519		8,928		9,173
Other operating revenues	1,003			1,000		1,056
Depreciation and amortization	(4,428		)	(4,541	)	(4,780	)
Impairment of goodwill	—			(1,092	)	—
Other unassigned operating expenses	(2,684		)	(2,842	)	(2,736	)
Other expenses, net	(1,300		)	(1,229	)	(1,463	)
Income tax expense	(338		)	(463	)	(473	)
Net income (loss)	$	772		(239	)	777