Information Relating to the Consolidated Statement of Cash Flows (Details Textual) (USD $) Share data in Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Supplemental Cash Flow Elements [Abstract]
Reduction for income tax benefits associated with stock options exercised	$ 55,000,000	$ 73,000,000
Net purchases of treasury shares	3,800,000,000	3,800,000,000
Stock repurchased during period (in shares)	30.6	31.3
Stock repurchased during period	$ 3,700,000,000	$ 3,700,000,000