Supplementary Financial Information (Details) - USD ($) $ in Millions		Dec. 31, 2015	Dec. 31, 2014
Other Current Assets
Deferred taxes(1)	[1]	$ 0	$ 382
Income taxes receivable		14	43
Royalties, license fees and software maintenance		75	61
Restricted cash		100	113
Prepaid expenses		103	122
Derivative instruments		55	22
Deferred purchase price from sales of accounts receivables		61	73
Beneficial interests - sales of finance receivables		8	35
Advances and deposits		32	29
Other		196	202
Total Other Current Assets		644	1,082
Other Current Liabilities
Deferred taxes(1)		0	61
Income taxes payable		36	58
Other taxes payable		97	125
Interest payable		73	78
Restructuring reserves		23	92
Derivative instruments		13	58
Product warranties		8	11
Dividends payable		85	88
Distributor and reseller rebates/commissions		106	120
Servicer liabilities		93	107
Due to Atos(2)		52	0
Other		990	711
Total Other Current Liabilities		1,576	1,509
Other Long-term Assets
Deferred taxes(1)	[1]	714	346
Income taxes receivable		8	17
Prepaid pension costs		31	17
Net investment in TRG		142	158
Internal use software, net		383	434
Product software, net		115	307
Restricted cash		72	139
Debt issuance costs, net		32	31
Customer contract costs, net		180	227
Beneficial interest - sales of finance receivables		30	42
Deferred compensation plan investments		125	125
Other		256	400
Total Other Long-term Assets		2,088	2,243
Other Long-term Liabilities
Deferred taxes (1)	[1]	60	34
Income taxes payable		65	64
Environmental reserves		11	9
Unearned income		100	116
Restructuring reserves		1	3
Other		180	228
Total Other Long-term Liabilities		417	454
Tax and labor litigation deposits in Brazil		71	135
Escrow and cash collections related to receivable sales		93	107
Other restricted cash		8	10
Total Restricted Cash		172	$ 252
Net investment in discontinued operations TRG		157
Discontinued operations TRG		$ 15

[1] __________(1)As discussed in Note 1 - Basis of Presentation and Summary of Significant Accounting Policies, we early adopted ASU 2015-17, Income Taxes: Balance Sheet Classification of Deferred Taxes, which requires that deferred tax liabilities and assets be classified as non-current in a classified statement of financial position. Adoption of this update resulted in a reclassification of our net current deferred tax asset and liabilities to the net non-current deferred tax asset and liabilities in our Consolidated Balance Sheet as of December 31, 2015. Prior periods were not retrospectively adjusted.