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Shareholders' Equity - Additional Information (Details) - USD ($) $ in Millions |  | 2 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Jan. 28, 2016 | Jan. 27, 2016 | Nov. 30, 2015 | Nov. 30, 2014 | Nov. 30, 2013 | Jan. 22, 2016 | Jan. 31, 2013 | Oct. 31, 2008
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |
Share repurchase program, aggregate value authorized for repurchase |  |  | $ 1,000.0 |  |  |  |  |
Share repurchased, Value |  |  | 533.0 | $ 0.0 | $ 138.0 |  |  |
Sales of treasury stock |  |  | 264.0 | 0.0 | $ 35.0 |  |  |
Unrecognized pension expenses reclassified out of accumulated other comprehensive (loss) income |  |  | $ 13.0 | $ 18.0 |  |  |  |
Carnival Corp |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |
Preferred stock, authorized |  |  | 40,000,000 |  |  |  |  |
Preferred stock, shares issued |  |  | 0 | 0 |  |  |  |
Repurchase of Common Stock (in shares) |  |  | 5,100,000 |  | 900,000 |  |  |
Share repurchase program additional authorized shares for repurchase |  |  |  |  |  |  | 32,800,000 |
Common stock reserved for issuance pursuant to employee benefit and dividend reinvestment plans |  |  | 14,700,000 |  |  |  |  |
CARNIVAL PLC |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |
Share repurchase program additional authorized shares for repurchase |  |  |  |  |  |  |  | 19,200,000
Share repuchase program, number of shares authorized to be repurchased |  |  | 21,500,000 |  |  |  |  |
Stock Issued During Period, Shares, Treasury Stock Reissued |  |  | 5,100,000 | 0 | 900,000 |  |  |
Sales of treasury stock |  |  | $ 264.0 |  | $ 35.0 |  |  |
Common stock reserved for issuance pursuant to employee benefit plans |  |  | 8,200,000 |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |
Stock repurchase program, remaining authorized amount | $ 1,200.0 | $ 213.0 |  |  |  |  |  |
Stock repurchase program, increase in remaining authorized repurchase amount | $ 1,000.0 |  |  |  |  |  |  |
Subsequent Event | Carnival Corp |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |
Stock repurchase program, remaining authorized shares |  |  |  |  |  | 26,900,000 |  |
Subsequent Event | CARNIVAL PLC |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |
Stock repurchase program, remaining authorized shares |  |  |  |  |  | 18,100,000 |  |
Repurchase Agreements [Member] | Carnival Corp |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |
Repurchase of Common Stock (in shares) |  |  | 5,300,000 | 0 | 2,800,000 |  |  |
Share repurchased, Value |  |  | $ 276.0 |  | $ 103.0 |  |  |
Repurchase Agreements [Member] | Subsequent Event | Carnival Corp |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |
Repurchase of Common Stock (in shares) |  | 9,600,000 |  |  |  |  |  |
Share repurchased, Value |  | $ 486.0 |  |  |  |  |  |
Payroll and Related Expenses |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |
Unrecognized pension expenses reclassified out of accumulated other comprehensive (loss) income |  |  | 8.0 | $ 12.0 |  |  |  |
General and Administrative Expense |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |
Unrecognized pension expenses reclassified out of accumulated other comprehensive (loss) income |  |  | $ 5.0 | $ 6.0 |  |  |  |

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