Revenue and Expense Recognition	6 Months Ended
May 31, 2019
Revenue from Contract with Customer [Abstract]
Revenue and Expense Recognition	Revenue and Expense Recognition Guest cruise deposits represent unearned revenues and are initially included in customer deposit liabilities when received. Customer deposits are subsequently recognized as cruise revenues, together with revenues from onboard and other activities, and all associated direct costs and expenses of a voyage are recognized as cruise costs and expenses, upon completion of voyages with durations of ten nights or less and on a pro rata basis for voyages in excess of ten nights. The impact of recognizing these shorter duration cruise revenues and costs and expenses on a completed voyage basis versus on a pro rata basis is not significant. Certain of our product offerings are bundled and we allocate the value of the bundled services and goods between passenger ticket revenues, onboard and other revenues and tour and other revenues based upon the estimated standalone selling prices of those goods and services. Future travel discount vouchers are included as a reduction of cruise passenger ticket revenues when such vouchers are utilized. Guest cancellation fees are recognized in cruise passenger ticket revenues at the time of cancellation. Our sale to guests of air and other transportation to and from airports near the home ports of our ships are included in cruise passenger ticket revenues, and the related cost of purchasing these services are included in cruise transportation costs. The proceeds that we collect from the sales of third-party shore excursions are included in onboard and other revenues and the related costs are included in onboard and other costs. The amounts collected on behalf of our onboard concessionaires, net of the amounts remitted to them, are included in onboard and other cruise revenues as concession revenues. All of these amounts are recognized on a completed voyage or pro rata basis as discussed above. Cruise passenger ticket revenues include fees, taxes and charges collected by us from our guests. A portion of these fees, taxes and charges vary with guest head counts and are directly imposed on a revenue-producing arrangement. This portion of the fees, taxes and charges is expensed in commissions, transportation and other costs when the corresponding revenues are recognized. For the three and six months ended May 31, the fees, taxes and charges included in passenger ticket revenues and commissions, transportation and other costs were $154 million and $317 million in 2019 and $143 million and $291 million in 2018. The remaining portion of fees, taxes and charges are also included in cruise passenger ticket revenues and are expensed in other ship operating expenses when the corresponding revenues are recognized. Revenues and expenses from our hotel and transportation operations, which are included in our Tour and Other segment, are recognized at the time the services are performed or expenses are incurred. Revenues from the long-term leasing of ships, which are also included in our Tour and Other segment, are recognized ratably over the term of the agreement. Customer Deposits Our payment terms generally require an initial deposit to confirm a reservation, with the balance due prior to the voyage. Cash received from guests in advance of the cruise is recorded in customer deposits and in other long-term liabilities on our Consolidated Balance Sheets. These amounts include refundable deposits. We had customer deposits of $6.0 billion and $4.7 billion as of May 31, 2019 and December 1, 2018. During the six months ended May 31, 2019, we recognized revenues of $3.7 billion related to our customer deposits as of December 1, 2018. Our customer deposits balance changes due to the seasonal nature of cash collections, the recognition of revenue and foreign currency translation. Contract Receivables Although we generally require full payment from our customers prior to or concurrently with their cruise, we grant credit terms to a relatively small portion of our revenue source. We also have receivables from credit card merchants for cruise ticket purchases and onboard revenue. These receivables are included within trade and other receivables, net. Contract Assets Contract assets are amounts paid prior to the start of a voyage, which we record as an asset within prepaid expenses and other and which are subsequently recognized as commissions, transportation and other at the time of revenue recognition. We have contract assets of $210 million and $151 million as of May 31, 2019 and December 1, 2018.

Revenue and Expense Recognition

Guest cruise deposits represent unearned revenues and are initially included in customer deposit liabilities when received. Customer deposits are subsequently recognized as cruise revenues, together with revenues from onboard and other activities, and all associated direct costs and expenses of a voyage are recognized as cruise costs and expenses, upon completion of voyages with durations of ten nights or less and on a pro rata basis for voyages in excess of ten nights. The impact of recognizing these shorter duration cruise revenues and costs and expenses on a completed voyage basis versus on a pro rata basis is not significant. Certain of our product offerings are bundled and we allocate the value of the bundled services and goods between passenger ticket revenues, onboard and other revenues and tour and other revenues based upon the estimated standalone selling prices of those goods and services.

Future travel discount vouchers are included as a reduction of cruise passenger ticket revenues when such vouchers are utilized. Guest cancellation fees are recognized in cruise passenger ticket revenues at the time of cancellation.

Our sale to guests of air and other transportation to and from airports near the home ports of our ships are included in cruise passenger ticket revenues, and the related cost of purchasing these services are included in cruise transportation costs. The proceeds that we collect from the sales of third-party shore excursions are included in onboard and other revenues and the related costs are included in onboard and other costs. The amounts collected on behalf of our onboard concessionaires, net of the amounts remitted to them, are included in onboard and other cruise revenues as concession revenues. All of these amounts are recognized on a completed voyage or pro rata basis as discussed above.

Cruise passenger ticket revenues include fees, taxes and charges collected by us from our guests. A portion of these fees, taxes and charges vary with guest head counts and are directly imposed on a revenue-producing arrangement. This portion of the fees, taxes and charges is expensed in commissions, transportation and other costs when the corresponding revenues are recognized. For the three and six months ended May 31, the fees, taxes and charges included in passenger ticket revenues and commissions, transportation and other costs were $154 million and $317 million in 2019 and $143 million and $291 million in 2018. The remaining portion of fees, taxes and charges are also included in cruise passenger ticket revenues and are expensed in other ship operating expenses when the corresponding revenues are recognized.

Revenues and expenses from our hotel and transportation operations, which are included in our Tour and Other segment, are recognized at the time the services are performed or expenses are incurred. Revenues from the long-term leasing of ships, which are also included in our Tour and Other segment, are recognized ratably over the term of the agreement.

Customer Deposits

Our payment terms generally require an initial deposit to confirm a reservation, with the balance due prior to the voyage. Cash received from guests in advance of the cruise is recorded in customer deposits and in other long-term liabilities on our Consolidated Balance Sheets. These amounts include refundable deposits. We had customer deposits of $6.0 billion and $4.7 billion as of May 31, 2019 and December 1, 2018. During the six months ended May 31, 2019, we recognized revenues of $3.7 billion related to our customer deposits as of December 1, 2018. Our customer deposits balance changes due to the seasonal nature of cash collections, the recognition of revenue and foreign currency translation.

Contract Receivables

Although we generally require full payment from our customers prior to or concurrently with their cruise, we grant credit terms to a relatively small portion of our revenue source. We also have receivables from credit card merchants for cruise ticket purchases and onboard revenue. These receivables are included within trade and other receivables, net.

Contract Assets

Contract assets are amounts paid prior to the start of a voyage, which we record as an asset within prepaid expenses and other and which are subsequently recognized as commissions, transportation and other at the time of revenue recognition. We have contract assets of $210 million and $151 million as of May 31, 2019 and December 1, 2018.