Goodwill, Capitalized Software and Other Intangible Assets 2 (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Projected annual amortization expense  
2015 $ 323
2016 260
2017 201
2018 147
2019 76
Purchased Software Products [Member]  
Projected annual amortization expense  
2015 115
2016 114
2017 113
2018 108
2019 65
Internally Developed Software Products [Member]  
Projected annual amortization expense  
2015 149
2016 109
2017 79
2018 37
2019 10
Other Intangible Assets [Member]  
Projected annual amortization expense  
2015 59
2016 37
2017 9
2018 2
2019 $ 1