Debt (Tables)

6 Months Ended

Jun. 30, 2012

Debt [Abstract]

Components of Notes Payable [Table Text Block]

(millions)		June 30, 2012				December 31, 2011
		Principal amount	Effective interest rate			Principal amount	Effective interest rate
Europe commercial paper	$	464	0.64	%	$	-	0	%
U.S. commercial paper		245	0.26			216	0.24
Bank borrowings		30				18
Total	$	739			$	234