Summary of Significant Accounting Policies (Details 2) (USD $) In Millions, unless otherwise specified																	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Land and land improvements		Dec. 31, 2012 Land and land improvements		Dec. 31, 2013 Buildings and improvements	Dec. 31, 2012 Buildings and improvements	Dec. 31, 2013 Machinery and other equipment	Dec. 31, 2012 Machinery and other equipment	Dec. 31, 2013 Capitalized software costs	Dec. 31, 2012 Capitalized software costs	Dec. 31, 2013 Leasehold improvements		Dec. 31, 2012 Leasehold improvements		Dec. 31, 2013 Minimum Capitalized software costs	Dec. 31, 2013 Maximum Land and land improvements	Dec. 31, 2013 Maximum Buildings and improvements	Dec. 31, 2013 Maximum Machinery and other equipment	Dec. 31, 2013 Maximum Capitalized software costs
Property, Plant and Equipment
Property, plant and equipment, at cost	$ 7,143	$ 7,033	$ 373	[1]	$ 373	[1]	$ 1,450	$ 1,421	$ 4,243	$ 4,233	$ 418	$ 413	$ 659	[1]	$ 593	[1]
Accumulated depreciation	(4,337)	(4,146)
Property, plant, and equipment, net	$ 2,806	$ 2,887
Property, plant and equipment, estimated useful life																	3 years	40 years	45 years	20 years	5 years

[1] Land is not a depreciable asset. Leasehold improvements are depreciated over the useful life of the asset if it is shorter than the length of the lease.