Costs Associated with Rationalization Programs (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Restructuring Reserve [Roll Forward]
Beginning Balance		$ 237
New charges		107
Reversed to the statement of operations	(4)	(5)	(11)
Incurred, net of foreign currency translation		(190)
Ending Balance		149
Associate Related Costs
Restructuring Reserve [Roll Forward]
Beginning Balance		232
New charges		65
Reversed to the statement of operations		(5)
Incurred, net of foreign currency translation		(152)
Restructuring Reserve, Translation Adjustment		(14)
Ending Balance		140
Other Exit And Noncancelable Lease Costs
Restructuring Reserve [Roll Forward]
Beginning Balance		5
New charges		42
Reversed to the statement of operations		0
Incurred, net of foreign currency translation		(38)
Restructuring Reserve, Translation Adjustment		0
Ending Balance		$ 9