Herbalife Ltd. Annual report pursuant to Section 13 and 15(d)

Segment Information - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 1,133.6us-gaap_SalesRevenueNet	$ 1,256.2us-gaap_SalesRevenueNet	$ 1,306.2us-gaap_SalesRevenueNet	$ 1,262.6us-gaap_SalesRevenueNet	$ 1,268.9us-gaap_SalesRevenueNet	$ 1,213.5us-gaap_SalesRevenueNet	$ 1,219.2us-gaap_SalesRevenueNet	$ 1,123.7us-gaap_SalesRevenueNet	$ 4,958.6us-gaap_SalesRevenueNet	$ 4,825.3us-gaap_SalesRevenueNet	$ 4,072.3us-gaap_SalesRevenueNet
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									926.8	908.0	841.2
Mexico [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									567.9	562.4	496.1
South and Central America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									826.4	973.5	688.8
EMEA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									843.1	735.2	627.8
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									1,130.1	1,174.6	1,139.9
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									$ 664.3	$ 471.6	$ 278.5