Notes, accounting policies and mandatory tags – this item MUST be used as a starting point for markups of disclosures in the notes to the financial statements Description of nature of entity's operations and principal activities Date of end of reporting period Domicile of entity Legal form of entity Name of ultimate parent of group Name of reporting entity or other means of identification Principal place of business Address of entity's registered office Name of parent entity Country of incorporation Profit or loss placeholder - this item MUST be used as a starting point for the statement of profit or loss if the statement of profit or loss is disclosed separately Profit (loss) [abstract] Gains (losses) recognised in profit or loss including exchange differences, fair value measurement, liabilities Profit (loss) from operating activities Profit (loss) from operating activities Finance costs Finance costs Finance income Revenue from room occupancy services System Fund Expenses System Fund Expenses System fund expenses. Administrative expenses Administrative expenses Share of profit (loss) of associates and joint ventures accounted for using equity method Cost Of Reimbursable Expense 1 Cost Of Reimbursable Expense Cost associated with reimbursable income. This occurs when a services entity incurs expenses on behalf of the client and passes through the cost of reimbursable expenses to a client. Profit (loss), attributable to [abstract] Profit (loss), attributable to non-controlling interests Profit (loss), attributable to owners of parent Profit (loss) Profit (loss) Tax expense (income) Tax expense (income) Profit (loss) before tax Profit (loss) before tax Other operating income (expense) Depreciation and amortisation expense Depreciation and amortisation expense Impairment loss on financial assets Impairment loss on financial assets Impairment loss (reversal of impairment loss) recognised in profit or loss Impairment loss (reversal of impairment loss) recognised in profit or loss Cost of sales Cost of sales Operating Profit Analysis [Abstract] Operating Exceptional Items Operating exceptional items Operating profit loss before system Fund result and Exceptional Items Operating profit loss before system fund result and exceptional items. Profit Loss From Operations Of System Fund Profit loss from operations of system fund. Earnings per share [abstract] Basic earnings (loss) per share from continuing operations Diluted earnings (loss) per share from continuing operations Revenue from hotel operations System Fund Revenue System fund revenue. Reimbursement Revenue Repayment received or receivable for expenses incurred on behalf of a client or customer, other than those reimbursements received by landlords from tenants. Revenue from contracts with customers Revenue from contracts with customers Statement of comprehensive income placeholder - this item MUST be used as a starting point for the statement of comprehensive income if it is disclosed separately or when the statement of profit or loss and other comprehensive income statements are c Other comprehensive income [abstract] Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract] Other comprehensive income, net of tax, gains (losses) from investments in equity instruments Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans Income Tax Relating To Employee Benefit Contribution Of Other Comprehensive Income Income Tax Relating To Employee Benefit Contribution Of Other Comprehensive Income Tax related to pension contributions. Other comprehensive income that will not be reclassified to profit or loss, net of tax Total other comprehensive income that will not be reclassified to profit or loss, net of tax Other comprehensive income Total other comprehensive income Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] Other comprehensive income that will be reclassified to profit or loss, net of tax Total other comprehensive income that will be reclassified to profit or loss, net of tax Gains (losses) on cash flow hedges, net of tax Other comprehensive income, net of tax, change in value of foreign currency basis spreads Reclassification adjustments on cash flow hedges for which hedged item affected profit or loss, net of tax Reclassification adjustments on cash flow hedges for which hedged item affected profit or loss, net of tax Gains (losses) on exchange differences on translation, net of tax Comprehensive income Total comprehensive income Comprehensive income attributable to [abstract] Comprehensive income, attributable to owners of parent Comprehensive income, attributable to non-controlling interests Income tax relating to exchange differences on translation included in other comprehensive income Income tax relating to investments in equity instruments included in other comprehensive income Income tax relating to remeasurements of defined benefit plans included in other comprehensive income Income tax relating to cash flow hedges included in other comprehensive income Statement of changes in equity placeholder - this item MUST be used as a starting point for the statement of changes in equity Statement of changes in equity [table] Components of equity [axis] Equity [member] Issued capital [member] Capital redemption reserve [member] Shares Held By Employee Share Trusts [Member] Shares held by employee share trusts member. Other reserves [member] Currency Translation Reserve [Member] Currency translation reserve member. Reserve of cash flow hedges [member] Fair Value Reserve [Member] Fair value reserve [Member]. Non-controlling interests [member] Equity attributable to owners of parent [member] Retained earnings [member] Retrospective application and retrospective restatement [axis] Currently stated [member] Previously stated [member] Statement of changes in equity [line items] Increase (decrease) through treasury share transactions, equity Purchase Of Own Shares By Employee Share Trusts Purchase Of Own Shares By Employee Share Trusts Purchase of own shares by employee share trusts. Release Of Own Shares By Employee Share Trusts Release of own shares by employee share trusts. Increase (decrease) through share-based payment transactions, equity Decrease (increase) through tax on share-based payment transactions, equity Decrease (increase) through tax on share-based payment transactions, equity Dividends recognised as distributions to owners Dividends recognised as distributions to owners Transaction Costs Relating To Shareholder Returns Transaction Costs Relating To Shareholder Returns Transaction costs relating to shareholder returns. Increase (decrease) through other changes, equity Equity Ending balance Beginning balance Total equity Decrease Increase Through Tax Related To Pension Contributions Decrease Increase Through Tax Related To Pension Contributions Decrease increase through tax related to pension contributions. Cumulative gain (loss) on disposal of investments in equity instruments designated at fair value through other comprehensive income Effect of overlay approach reclassification [axis] In accordance with IFRS 9 [member] IFRS9 [Member] IFRS9 member. Sharebased Payment Transactions Reclassification Of Cash Settled Awards Sharebased payment transactions reclassification of cash settled awards. Statement of financial position placeholder - this item MUST be used as a starting point for the statement of financial position Assets (liabilities) Net assets (liabilities) Equity [abstract] Equity attributable to owners of parent Non-controlling interests Liabilities [abstract] Current provisions Current provisions Current tax liabilities, current Current tax liabilities, current Trade and other current payables Trade and other current payables Non-current provisions Non-current provisions Deferred tax liabilities Deferred tax liabilities Non-current liabilities Total non-current liabilities Liabilities Total liabilities Non-current contract liabilities Non-current contract liabilities Current contract liabilities Current contract liabilities Non-current portion of non-current borrowings Non-current portion of non-current borrowings Non-current lease liabilities Non-current lease liabilities Non-current derivative financial liabilities Non-current derivative financial liabilities Non-current net defined benefit liability Non-current net defined benefit liability Current borrowings Current borrowings Current lease liabilities Current lease liabilities Current liabilities Total current liabilities Deferred Compensation Plan Liabilities Deferred Compensation Plan Liabilities Deferred compensation plan liabilities. Trade and other non-current payables Trade and other non-current payables Assets [abstract] Other current financial assets Cash and cash equivalents Contract Costs Current IFRS current Assets recognised from costs to obtain or fulfill contracts with customers. Current contract assets Current assets Total current assets Investments in subsidiaries, joint ventures and associates Other non-current financial assets Non-current net defined benefit asset Non-current derivative financial assets Deferred Compensation Plan Investments Deferred compensation plan investments. Current tax assets, non-current Deferred tax assets Contract Costs Noncurrent IFRS non-current Assets recognised from costs to obtain or fulfill contracts with customers. Non-current contract assets Assets Total assets Right-of-use assets Intangible assets and goodwill Property, plant and equipment Current tax assets, current Trade and other current receivables Current inventories Non-current assets Total current liabilities Statement of cash flows placeholder - this item MUST be used as a starting point for the statement of cash flows Adjustments to reconcile profit (loss) Cash flows from (used in) financing activities [abstract] Repayments of bonds, notes and debentures Repayments of bonds, notes and debentures Payments of lease liabilities, classified as financing activities Payments of lease liabilities, classified as financing activities Proceeds from issue of bonds, notes and debentures Dividends paid, classified as financing activities Dividends paid, classified as financing activities Payments to acquire or redeem entity's shares Payments to acquire or redeem entity's shares Dividends paid to non-controlling interests Dividends paid to non-controlling interests Cash flows from (used in) financing activities Net cash flows from (used in) financing activities Other inflows (outflows) of cash, classified as financing activities Repayment To Proceeds From Issue Of Commercial Paper Repayment To Proceeds From Issue Of Commercial Paper Repayment to proceeds from issue of commercial paper. Proceeds From Currency Swaps Proceeds from currency swaps. Cash flows from (used in) operating activities Net cash flows from (used in) operating activities Cash flows from (used in) investing activities [abstract] Proceeds from disposal or maturity of available-for-sale financial assets Cash flows from (used in) investing activities Net cash flows from (used in) investing activities Cash receipts from repayment of advances and loans made to other parties, classified as investing activities Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities Interest paid, classified as investing activities Interest paid, classified as investing activities Other cash receipts from sales of interests in joint ventures, classified as investing activities Purchase of property, plant and equipment, classified as investing activities Purchase of property, plant and equipment, classified as investing activities Deferred And Contingent Consideration Paid Investing Activities Contingent Purchase Consideration Paid Investing Activities Deferred and contingent consideration paid investing activities. Purchase of intangible assets, classified as investing activities Purchase of intangible assets, classified as investing activities Purchase of financial instruments, classified as investing activities Purchase of financial instruments, classified as investing activities Other cash payments to acquire interests in joint ventures, classified as investing activities Other cash payments to acquire interests in joint ventures, classified as investing activities Proceeds from disposal of non-current assets or disposal groups classified as held for sale and discontinued operations Cash flows from (used in) operations Net cash flows from (used in) operations Interest paid, classified as operating activities Interest paid, classified as operating activities Interest received, classified as operating activities Contingent Purchase Consideration Paid Operating Activities Contingent Purchase Consideration Paid Operating Activities Contingent purchase consideration paid operating activities. Income taxes paid (refund), classified as operating activities Income taxes paid (refund), classified as operating activities Increase (decrease) in cash and cash equivalents before effect of exchange rate changes Net increase (decrease) in cash and cash equivalents before effect of exchange rate changes Cash and cash equivalents if different from statement of financial position Cash and cash equivalents if different from statement of financial position Cash and cash equivalents if different from statement of financial position Effect of exchange rate changes on cash and cash equivalents