Intangible Assets Including Goodwill (Details 4) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
Jun. 30, 2015	Dec. 31, 2014
Changes in Goodwill Balances
Beginning Balance	$ 30,556	$ 31,184
Goodwill Additions	527	442
Purchase Price Adjustments	(1)	4
Divestitures	(9)	(183)
Foreign Currency Translation and Other Adjustments	(537)	(891)
Ending Balance	30,535	30,556
Goodwill impairment losses	0	0
Goodwill accumulated impairment losses	0	0
Global Business Services
Changes in Goodwill Balances
Beginning Balance	4,555	4,855
Purchase Price Adjustments	0	0
Divestitures	(1)	(52)
Foreign Currency Translation and Other Adjustments	(122)	(248)
Ending Balance	4,432	4,555
Global Technology Services
Changes in Goodwill Balances
Beginning Balance	3,530	3,608
Goodwill Additions	62	11
Purchase Price Adjustments	0	21
Divestitures		(2)
Foreign Currency Translation and Other Adjustments	(57)	(108)
Ending Balance	3,535	3,530
Software
Changes in Goodwill Balances
Beginning Balance	21,000	21,121
Goodwill Additions	465	430
Purchase Price Adjustments	(1)	(17)
Divestitures	(8)	(19)
Foreign Currency Translation and Other Adjustments	(343)	(516)
Ending Balance	21,112	21,000
Systems Hardware
Changes in Goodwill Balances
Beginning Balance	1,472	1,601
Divestitures		(110)
Foreign Currency Translation and Other Adjustments	(15)	(19)
Ending Balance	$ 1,457	$ 1,472

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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