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

Annual report pursuant to Section 13 and 15(d)

Shareholders' (Deficit) Equity - Additional Information (Detail)

Shareholders' (Deficit) Equity - Additional Information (Detail) - USD ($)		1 Months Ended	2 Months Ended	3 Months Ended					12 Months Ended
	May. 07, 2014	Feb. 28, 2014	Jun. 30, 2014	Mar. 31, 2014	Mar. 31, 2012	Jun. 30, 2011	Sep. 30, 2010	Jun. 30, 2010	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Feb. 03, 2014	Jul. 30, 2012
Stockholders Equity [Line Items]
Common shares, shares outstanding									92,700,000	92,200,000	101,100,000
Preference shares authorized									7,500,000
Preference shares par value									$ 0.002
Dividend declared per common share					$ 0.30	$ 0.20	$ 0.13	$ 0.10		$ 0.30	$ 1.20
Increase in cash dividend per common share					$ 0.10	$ 0.07	$ 0.03
Dividend declaration date					Feb. 21, 2012	May 02, 2011	Aug. 02, 2010
Dividends paid									$ 0	$ 30,400,000	$ 123,100,000
Dividends received primarily relating to forward transactions									$ 0	3,400,000
Share repurchase program authorized amount												$ 1,500,000,000	$ 1,000,000,000
Share repurchase program expiration date									Jun. 30, 2017
Accumulated deficit									$ (326,300,000)	(665,400,000)
Additional paid-in-capital									438,200,000	409,100,000
Non-cash forward transaction issuance costs				$ 35,800,000
Non-cash interest expense relating to amortization of non-cash issuance costs									6,500,000	5,800,000
Repurchase of common stock, amount	$ 266,000,000								$ 16,600,000	$ 1,291,900,000	$ 306,500,000
Repurchase of common stock, shares			4,300,000						400,000	20,200,000	6,200,000
Capped call transactions with financial institutions										$ 123,800,000
Other comprehensive income (loss) before foreign currency translation adjustments reclassifications, Tax expense (benefits)									$ (7,200,000)	(7,300,000)	$ (4,300,000)
Other comprehensive Unrealized Gain (Loss) on Derivatives before reclassifications, Tax expense (benefits)									(600,000)	600,000	1,000,000
Other comprehensive Unrealized Gain (Loss) on Available-For-Sale Investments before reclassifications, Tax expense (benefits)									(900,000)	4,600,000	100,000
Amounts reclassified from accumulated other comprehensive income (loss) to income, tax expense (benefits) unrealized gain (loss) on available-for-sale investments									$ 800,000	(4,500,000)	$ 700,000
Capped call transactions [Member]
Stockholders Equity [Line Items]
Capped call transactions with financial institutions		$ 123,800,000
Capped call transactions price per common share		$ 120.79
Increase (decrease) in additional paid-in capital, other				(123,800,000)
Capped call transactions [Member] \| Convertible Notes [Member]
Stockholders Equity [Line Items]
Convertible notes initial conversion price		$ 86.28
Repurchase Agreement 2014 [Member]
Stockholders Equity [Line Items]
Agreement expiration date									Jun. 30, 2014
Prepaid forward share repurchase transactions [Member]
Stockholders Equity [Line Items]
Forward share repurchase transactions amount		$ 685,800,000		685,800,000						$ 1,267,100,000
Share repurchase transaction, shares to be purchased		9,900,000								9,900,000
Settlement date of forward transactions									Aug. 15, 2019
Accumulated deficit				(653,900,000)
Additional paid-in-capital				$ 31,900,000
Average cost per share of shares repurchased										$ 64.25
Share repurchase program, remaining authorized capacity									$ 232,900,000
Open market purchases [Member]
Stockholders Equity [Line Items]
Repurchase of common stock, shares									0	19,700,000	6,100,000
Average cost per share of shares repurchased											$ 49.08
Shares repurchased aggregate cost											$ 297,400,000