Subsequent Events	3 Months Ended
Subsequent Events	Feb. 29, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events The spread of COVID-19 and the recent developments surrounding the global pandemic are having material negative impacts on all aspects of our business. On March 13, 2020, we announced voluntary pauses of our global fleet cruise operations across all brands. The duration of the pauses will be dependent in part on various travel restrictions and travel bans issued by countries around the world. As of April 1, 2020, substantially all our ships have disembarked their passengers. There are approximately 6,000 passengers onboard ships still at sea that are expected to disembark their passengers by the end of April. Some of our crew is unable to return home, and we will be providing them with food and housing. We have updated our cancellation policies, the terms of which vary widely by brand and sailing date, to permit cruisers to cancel certain upcoming cruises and elect to receive refunds in cash or future cruise credits. As an incentive to accept the future cruise credits, our brands have offerings which vary widely in terms but generally increase the value of the future cruise credits or onboard credits (credits that can be used as onboard spending money on a future sailing). The volume and pace of cash refunds could have a material adverse effect on our liquidity and capital resources. Significant events affecting travel, including COVID-19, typically have an impact on booking patterns, with the full extent of the impact generally determined by the length of time the event influences travel decisions. We believe the ongoing effects of COVID-19 on our operations and global bookings have had, and will continue to have, a material negative impact on our financial results and liquidity, and such negative impact may continue well beyond the containment of such outbreak. We have never previously experienced a complete cessation of our cruising operations, and as a consequence, our ability to be predictive regarding the impact of such a cessation on our brands and future prospects is uncertain. In addition, the magnitude, duration and speed of the global pandemic is uncertain. As a consequence, we cannot estimate the impact on our business, financial condition or near- or longer-term financial or operational results with certainty, but we expect a net loss on both a U.S. GAAP and adjusted basis for the fiscal year ending November 30, 2020. The effects of further decreases in estimated future operating cash flows could result in the need to recognize additional impairment charges in future periods. In March and April 2020, Moody’s and S&P Global downgraded our long-term issuer and senior unsecured debt ratings. In addition, our long-term ratings were placed on review for further downgrade by both rating agencies. Our short-term commercial paper credit ratings were downgraded and also placed on review for further downgrade. In March 2020, we fully drew down our $3.0 billion Existing Multicurrency Facility. In March 2020, we early settled all outstanding cross currency swaps designated as net investment hedges and received proceeds of $180 million, of which $167 million will remain in AOCI until either the sale or substantially complete liquidation of the related subsidiary. We also early settled our foreign currency forwards that were designated as cash flow hedges and received proceeds of $53 million which will remain in AOCI until recognized in earnings proportionately to the related depreciation expense of the underlying vessel that was hedged. On April 1, 2020, we announced the pricing terms of offerings of $4.0 billion of the Secured Notes, $1.75 billion Convertible Notes and a public offering of $500 million of common stock in the Public Equity Offering. In connection with the Convertible Notes offering, we granted the initial purchasers of the Convertible Notes an option to purchase on or before April 18, 2020, up to an additional $262.5 million aggregate principal amount of Convertible Notes. In connection with the Public Equity Offering, we granted the underwriters an option to purchase up to 9,375,000 of additional shares of common stock, which option must be exercised on or before May 1, 2020. The Secured Notes will pay interest semi-annually on April 1 and October 1 of each year, beginning on October 1, 2020, at a rate of 11.5% per year. The Secured Notes will mature on April 1, 2023. The Convertible Notes will pay interest semi-annually on April 1 and October 1 of each year, beginning on October 1, 2020, at a rate of 5.75% per year. The Convertible Notes will mature on April 1, 2023, unless earlier converted, redeemed or repurchased. The initial conversion rate per $1,000 principal amount of Convertible Notes is equivalent to 100 shares of common stock of the Corporation, which is equivalent to a conversion price of approximately $10 per share, subject to adjustment in certain circumstances. The Public Equity Offering consists of 62,500,000 shares of common stock, par value $0.01 per share, of Carnival Corporation, at a price of $8 per share. The Public Equity Offering, the Convertible Notes offering and the Secured Notes offering are expected to be completed in early April, subject to customary closing conditions. The net proceeds from the offering of Secured Notes will be deposited in to a segregated escrow account, pending the releases in accordance with certain collateral perfection thresholds. None of the closings of the Public Equity Offering and the offerings of the Secured Notes or the Convertible Notes is conditioned upon the closing of any of the other offerings or vice versa. One of our directors purchased 1.25 million shares of our common stock as part of the Public Equity Offering for a purchase price of approximately $10 million.