Venezuela (Details) In Millions, except Per Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2013 USD ($)	Sep. 30, 2012 USD ($)	Sep. 30, 2013 VEF
Notes to Financial Statements [Abstract]
Official currency exchange rate in Venezuela for non-essential goods prior to devaluation beginning Febrauary 13, 2013			4.30
Official currency exchange rate in Venezuela for non-essential goods beginning February 13, 2013			6.30
Pretax Venezuela devaluation charge	$ 172	$ 0
Aftertax Venezuela devaluation charge	111
Impact of aftertax Venezuela devaluation charge per common share diluted	$ 0.12
Percentage of consolidated Net sales represented by CP Venezuela (in hundredths)	4.00%
CP Venezuela's bolivar fuerte-denominated monetary net asset position	530
Fair Value of U.S. dollar-linked, devaluation-protected bonds	$ 257