Restructuring Programs (Details) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) Employees		Sep. 30, 2014 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated (approximately) | Employees				1,780
Restructuring Reserve [Roll Forward]
Balance at beginning of period				$ 97
Provision				211
Reversals				(20)
Net Current Period Charges		$ 20	$ 27	191	[1]	$ 92
Charges against reserve and currency		(30)	(35)	(242)		(116)
Balance at end of period		46		46
Reconciliation To Consolidated Statements Of Cash Flows [Abstract]
Charges against reserve		(30)	(35)	(242)		(116)
Asset impairments		7	0	153		7
Effects of foreign currency and other non-cash items		3	4	8		6
Restructuring Cash Payments		(20)	(31)	(81)		(103)
Services
Restructuring Reserve [Roll Forward]
Net Current Period Charges		11	5	165		19
Document Technology
Restructuring Reserve [Roll Forward]
Net Current Period Charges		1	20	18		62
Other
Restructuring Reserve [Roll Forward]
Net Current Period Charges		8	$ 2	8		$ 11
Severance and Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges				54
Restructuring Reserve [Roll Forward]
Balance at beginning of period				93
Provision				54
Reversals				(17)
Net Current Period Charges	[1]			37
Charges against reserve and currency				(86)
Balance at end of period		44		44
Reconciliation To Consolidated Statements Of Cash Flows [Abstract]
Charges against reserve				(86)
Lease Cancellation and Other Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges				4
Restructuring Reserve [Roll Forward]
Balance at beginning of period				4
Provision				4
Reversals				(3)
Net Current Period Charges	[1]			1
Charges against reserve and currency				(3)
Balance at end of period		2		2
Reconciliation To Consolidated Statements Of Cash Flows [Abstract]
Charges against reserve				(3)
Asset Impairments [Member]
Restructuring Reserve [Roll Forward]
Balance at beginning of period	[2]			0
Provision	[2]			153
Reversals	[2]			0
Net Current Period Charges	[1],[2]			153
Charges against reserve and currency	[2]			(153)
Balance at end of period	[2]	$ 0		0
Reconciliation To Consolidated Statements Of Cash Flows [Abstract]
Charges against reserve	[2]			(153)
Asset Impairments [Member] | Services
Restructuring Reserve [Roll Forward]
Provision				$ 146

[1] Represents net amount recognized within the Condensed Consolidated Statements of Income for the period shown.

[2] Charges associated with asset impairments represent the write-down of the related assets to their new cost basis and are recorded concurrently with the recognition of the provision.