Contingencies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
FCPA [Member]
Loss Contingency Accrual, Period Increase (Decrease)	$ 46
Assessment for 2002 [Member]
Assessment of contingencies, including penalties and accruing interest, reduced	29
Assessment of contingencies, prior to reductions	70
IPI [Member] | Assessment for 2012 [Member]
Assessment of contingencies, including penalties and accruing interest	374
PIS [Member] | Assessment for 2012 [Member]
Assessment of contingencies, including penalties and accruing interest	55
COFINS [Member] | Assessment for 2012 [Member]
Assessment of contingencies, including penalties and accruing interest	259
DOJ [Member]
Estimated Litigation Liability	135
DOJ [Member] | FCPA [Member]
Estimated Litigation Liability	68
SEC [Member] | FCPA [Member]
Estimated Litigation Liability	$ 67