Restructuring Program Restructuring (Additional Information) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended	21 Months Ended	60 Months Ended	12 Months Ended		3 Months Ended	9 Months Ended	3 Months Ended	6 Months Ended	21 Months Ended	3 Months Ended	6 Months Ended	21 Months Ended	3 Months Ended	6 Months Ended	21 Months Ended	3 Months Ended	9 Months Ended	21 Months Ended	36 Months Ended
	Mar. 31, 2013 employees	Dec. 31, 2012	Mar. 31, 2013 employees	Jun. 30, 2013 employees Rate	Mar. 31, 2013 employees	Jun. 30, 2016	Jun. 30, 2013 Minimum [Member]	Jun. 30, 2013 Maximum [Member]	Mar. 31, 2013 Selling, General and Administrative Expense [Member]	Mar. 31, 2013 Selling, General and Administrative Expense [Member]	Mar. 31, 2013 Employee Severance [Member]	Dec. 31, 2012 Employee Severance [Member]	Mar. 31, 2013 Employee Severance [Member]	Mar. 31, 2013 Asset-Related Costs [Member]	Dec. 31, 2012 Asset-Related Costs [Member]	Mar. 31, 2013 Asset-Related Costs [Member]	Mar. 31, 2013 Other Costs [Member]	Dec. 31, 2012 Other Costs [Member]	Mar. 31, 2013 Other Costs [Member]	Mar. 31, 2013 Non-manufacturing overhead personnel [Member] employees	Mar. 31, 2013 Non-manufacturing overhead personnel [Member] employees	Mar. 31, 2013 Non-manufacturing overhead personnel [Member] employees	Jun. 30, 2016 Maximum [Member] Rate	Jun. 30, 2016 Minimum [Member] Rate
Restructuring and Related Cost, Number of Positions Eliminated	690		3,140																	170	2,220
Restructuring and Related Cost, Expected Number of Positions Eliminated				5,700	6,440																	4,470
Annual Manufacturing Overhead Personnel Reduction																							4.00%	2.00%
Restructuring and Related Cost, Expected Cost						$ 3,500	$ 250	$ 500
Cost to be expensed related to Incremental Restructuring Program				50.00%
Restructuring Charges	$ 180	$ 592	$ 772		$ 1,800				$ 110	$ 510	$ 100	$ 423	$ 1,000	$ 28	$ 42	$ 448	$ 52	$ 127	$ 358