CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Passenger ticket revenues	$ 1,672,051	$ 1,635,033	$ 4,432,542	$ 4,319,478
Onboard and other revenues	639,698	591,357	1,673,194	1,562,396
Total revenues	2,311,749	2,226,390	6,105,736	5,881,874
Cruise operating expenses:
Commissions, transportation and other	378,291	366,100	1,017,734	994,535
Onboard and other	178,269	166,356	440,466	404,932
Payroll and related	213,860	201,644	632,758	618,277
Food	119,104	111,315	351,117	334,240
Fuel	215,686	213,434	689,809	680,389
Other operating	311,591	289,476	890,726	867,078
Total cruise operating expenses	1,416,801	1,348,325	4,022,610	3,899,451
Marketing, selling and administrative expenses	249,954	243,877	781,936	756,049
Depreciation and amortization expenses	188,541	182,051	564,089	541,957
Restructuring and related charges	12,244		13,922
Operating Income	444,209	452,137	723,179	684,417
Other income (expense):
Interest income	3,299	4,744	10,451	16,062
Interest expense, net of interest capitalized	(79,654)	(84,977)	(256,713)	(266,749)
Extinguishment of unsecured senior notes	(4,206)	(7,485)	(4,206)	(7,485)
Other income (expense)	2,053	3,360	(6,037)	(15,155)
Total other income (expense)	(78,508)	(84,358)	(256,505)	(273,327)
Net Income	365,701	367,779	466,674	411,090
Earnings per Share:
Basic (in dollars per share)	$ 1.66	$ 1.69	$ 2.13	$ 1.89
Diluted (in dollars per share)	$ 1.65	$ 1.68	$ 2.11	$ 1.87
Weighted-Average Shares Outstanding:
Basic (in shares)	219,744	217,940	219,450	217,797
Diluted (in shares)	221,004	219,296	220,744	219,263
Comprehensive Income (Loss)
Net Income	365,701	367,779	466,674	411,090
Other comprehensive income (loss):
Foreign currency translation adjustments	6,164	1,331	369	(7,690)
Change in defined benefit plans	5,423		10,716
Gain (loss) on cash flow derivative hedges	61,573	81,322	56,515	(59,460)
Total other comprehensive income (loss)	73,160	82,653	67,600	(67,150)
Comprehensive Income	$ 438,861	$ 450,432	$ 534,274	$ 343,940