Restructuring Related Activities 2011 (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended	53 Months Ended	3 Months Ended	6 Months Ended	23 Months Ended	3 Months Ended	6 Months Ended	53 Months Ended	3 Months Ended	6 Months Ended	23 Months Ended	3 Months Ended	6 Months Ended	53 Months Ended	3 Months Ended	6 Months Ended	23 Months Ended	3 Months Ended	6 Months Ended	53 Months Ended	3 Months Ended	6 Months Ended	23 Months Ended	3 Months Ended	6 Months Ended				3 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2013 2011 Restructuring Plan [Member]	Jun. 30, 2013 2011 Restructuring Plan [Member]	Jun. 30, 2013 2011 Restructuring Plan [Member]	Jun. 30, 2013 Termination Benefits [Member]	Jun. 30, 2013 Termination Benefits [Member]	Jun. 30, 2013 Termination Benefits [Member]	Jun. 30, 2013 Termination Benefits [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Termination Benefits [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Termination Benefits [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Transfer costs [Member]	Jun. 30, 2013 Transfer costs [Member]	Jun. 30, 2013 Transfer costs [Member]	Jun. 30, 2013 Transfer costs [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Transfer costs [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Transfer costs [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Other [Member]	Jun. 30, 2013 Other [Member]	Jun. 30, 2013 Other [Member]	Jun. 30, 2013 Other [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Other [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Other [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Minimum [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Minimum [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Minimum [Member] Restructuring Plan [Member] Termination Benefits [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Minimum [Member] Restructuring Plan [Member] Other [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Minimum [Member] Restructuring Related To Plan [Member] Other [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Maximum [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Maximum [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Maximum [Member] Restructuring Plan [Member] Termination Benefits [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Maximum [Member] Restructuring Plan [Member] Other [Member] 2011 Restructuring Plan [Member]	Jun. 30, 2013 Maximum [Member] Restructuring Related To Plan [Member] Other [Member] 2011 Restructuring Plan [Member]
Estimated costs of restructuring program by major type of cost
Expected total costs associated with the plan																									$ 300	$ 300	$ 185	$ 70	$ 45	$ 355	$ 355	$ 210	$ 90	$ 55
Restructuring and Related Cost, Cost Incurred to Date			521			234
Restructuring plan estimated future cash outflow																									270					300
Payments for Restructuring	$ 24	$ 71	$ 446	$ 24	$ 70	$ 198	$ 11	$ 34	$ 216	$ 11	$ 33	$ 96	$ 0	$ 0	$ 73	$ 0	$ 0	$ 0	$ 13	$ 37	$ 157	$ 13	$ 37	$ 102