Herbalife Ltd. Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments and Hedging Activities - Gains (Losses) Relating to Derivative Instruments Reclassified from Accumulated Other Comprehensive Loss into Income Effective Portion (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Foreign exchange currency contracts relating to inventory hedges [Member] \| Derivatives designated as hedging instruments [Member] \| Cost of sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income	$ 3.4	$ 1.2	$ 4.8	$ 1.5