Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 1,610,873	$ 1,560,983	$ 974,477	$ 735,618	$ 1,834,400	$ 1,795,575	$ 957,276	$ 869,399	$ 4,881,951	$ 5,456,650	$ 5,702,613
Gross profit	495,137	647,149	399,765	278,778	861,388	870,765	433,567	388,671	1,820,829	2,554,391	2,806,358
Advertising and promotion expenses	293,534	179,691	95,499	73,562	250,333	202,900	94,771	86,943
Other selling and administrative expenses	454,423	381,756	352,943	332,244	348,412	350,469	350,456	350,874
Operating (Loss) Income	(252,820)	85,702	(48,677)	(127,028)	262,643	317,396	(11,660)	(49,146)	(342,823)	519,233	540,922
(Loss) income before income taxes	(346,836)	61,263	(73,743)	(145,671)	238,945	294,028	(29,752)	(93,479)	(504,987)	409,742	463,915
Net (loss) income	$ (281,283)	$ (603,247)	$ (56,075)	$ (113,231)	$ 173,845	$ 236,250	$ (19,114)	$ (72,959)	$ (1,053,836)	$ 318,022	$ 369,416
Net (loss) income per common share - basic (USD per share)	$ (0.82)	$ (1.75)	$ (0.16)	$ (0.33)	$ 0.51	$ 0.69	$ (0.06)	$ (0.21)	$ (3.07)	$ 0.93	$ 1.08
Weighted average number of common shares (in shares)	344,294	343,870	343,116	342,914	342,653	341,961	340,926	340,369	343,564	341,480	339,172
Net (loss) income per common share - Diluted (USD per share)	$ (0.82)	$ (1.75)	$ (0.16)	$ (0.33)	$ 0.50	$ 0.68	$ (0.06)	$ (0.21)	$ (3.07)	$ 0.92	$ 1.08
Weighted average number of common and potential common shares (in shares)	344,294	343,870	343,116	342,914	344,996	344,226	340,926	340,369	343,564	344,233	339,748
Dividends declared per common share (USD per share)	$ 0	$ 0.15	$ 0.38	$ 0.38	$ 0.38	$ 0.38	$ 0.38	$ 0.38	$ 0.91	$ 1.52	$ 1.52
Common stock market price - high (USD per share)	18.81	21.63	25.73	31.56	33.09	34.12	34.26	33.62
Common stock market price - low (USD per share)	$ 13.04	$ 14.52	$ 20.01	$ 24.96	$ 27.55	$ 30.28	$ 28.89	$ 24.87
Net tax benefit (expense)	$ (104,400)	$ (561,900)	$ 3,200	$ (500)	$ 4,000	$ 9,000	$ 4,000	$ (200)

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