Restructuring and Related Implementation Charges (Details 3) - Two Thousand Twelve Restructuring Program [Member] $ in Millions	Jun. 30, 2015 USD ($)
Restructuring Cost and Reserve [Line Items]
Pretax charges related to the Restructuring Program to date	$ 898
Aftertax charges related to the Restructuring Program to date	663
Employee-Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Pretax charges related to the Restructuring Program to date	362
Incremental Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Pretax charges related to the Restructuring Program to date	60
Asset Impairment [Member]
Restructuring Cost and Reserve [Line Items]
Pretax charges related to the Restructuring Program to date	3
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Pretax charges related to the Restructuring Program to date	$ 473