Contingencies (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013
FCPA [Member]
Estimated Litigation Liability	$ 12
Assessment for 2002 [Member]
Assessment Of Contingencies, Prior to Reductions	71
Assessment of contingencies, including penalties and accruing interest, reduced	30
IPI [Member] | Assessment for 2012 [Member]
Loss Contingency, Estimate of Possible Loss	373
PIS [Member] | Assessment for 2012 [Member]
Loss Contingency, Estimate of Possible Loss	56
COFINS [Member] | Assessment for 2012 [Member]
Loss Contingency, Estimate of Possible Loss	$ 258