Basis of Presentation and Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2012

Basis Of Presentation And Summary Of Significant Accounting Policies Tables [Abstract]

Schedule of Earnings Per Share Reconciliation [Table Text Block]

		Three Months Ended			Six Months Ended
		June 30,			June 30,
(in millions)			2012	2011		2012	2011
Weighted average shares for basic EPS			646	669		648	671
Dilutive effect of shares issuable under
	stock-based compensation plans		15	17		16	18
Weighted average shares for diluted EPS			661	686		664	689