Other Income, Net - Additional Information (Details) $ in Millions	3 Months Ended
	Jun. 30, 2014 USD ($) VEF / $	Mar. 31, 2014 USD ($) VEF / $	Feb. 28, 2013 VEF / $
Amount charged to expense due to inflationary accounting | $		$ 17
Official Exchange [Member]
Foreign Currency Exchange Rate, Remeasurement			6.3
Foreign Currency Transaction Gain (Loss), Realized | $	$ 7
SICAD [Member]
Foreign Currency Exchange Rate, Remeasurement	10.6	10.7
SICAD2 [Member]
Foreign Currency Transaction Gain (Loss), Realized | $	$ 6
Average Transacted Exchange Rate	49.9