Reserve Of Cash Flow Hedges And Exchange Differences On Translation [Member] Reserve of cash flow hedges and exchange differences on translation. Proceeds From Disposals Of Property, Plant And Equipment And Computer Software Proceeds From Disposals Of Property, Plant And Equipment And Computer Software Net Sales Net Sales Net Sales Payments To Acquire Or Redeem Entitys Shares For Share Schemes Payments To Acquire Or Redeem Entitys Shares For Share Schemes Increase (Decrease) Due To Adjustment Related To Hyperinflation, Equity [Member] Increase (Decrease) Due To Adjustment Related To Hyperinflation, Equity Exchange Gain (Loss) Recycled To The Income Statement On Translation Of Foreign Operations In Respect Of Disposals Exchange Gain (Loss) Recycled To The Income Statement On Translation Of Foreign Operations In Respect Of Disposals Increase (Decrease) Through Share Based Payments And Purchase Of Treasury Shares, Subsidiaries Increase (Decrease) Through Share Based Payments And Purchase Of Treasury Shares, Subsidiaries Increase (Decrease) Through Share-Based Payment Transactions, Incentive Plans In Respect Of Associates, Equity Increase (Decrease) Through Share-Based Payment Transactions, Incentive Plans In Respect Of Associates, Equity Other Comprehensive Income, Before Tax, Exchange Differences On Translation Of Foreign Operations, Associates And Joint Ventures Other Comprehensive Income, Before Tax, Exchange Differences On Translation Of Foreign Operations, Associates And Joint Ventures Other Comprehensive Income, Before Tax, Cash Flow Hedges, Transaction Exposure Hedging Other Comprehensive Income, Before Tax, Cash Flow Hedges, Transaction Exposure Hedging Increase (Decrease) Through Retranslation Impact Of Opening Balances, Equity Increase (Decrease) Through Retranslation Impact Of Opening Balances, Equity Reclassification Adjustments On Cash Flow Hedges, Before Tax, Transaction Exposure Hedging Reclassification Adjustments On Cash Flow Hedges, Before Tax, Transaction Exposure Hedging Adjustments For Depreciation Amortisation Impairment Dividend And Other Items Adjustments For Depreciation, Amortisation, Impairment Dividend And Other Items Adjustments For Depreciation, Amortisation, Impairment Dividend And Other Items Increase (Decrease) Through Taxes On Purchase Of Non-Controlling Interests Increase (Decrease) Through Taxes On Purchase Of Non-Controlling Interests Other Comprehensive Income, Before Tax, Gains (Losses) On Remeasurements Of Defined Benefit Plans, Group Other Comprehensive Income, Before Tax, Gains (Losses) On Remeasurements Of Defined Benefit Plans, Group Other Comprehensive Income, Before Tax, Cash Flow Hedges, Associates And Joint Ventures Other Comprehensive Income, Before Tax, Cash Flow Hedges, Associates And Joint Ventures Marketing Expenses Marketing Expenses Increase (decrease) in working capital Other Comprehensive Income, Before Tax, Cash Flow Hedges, Hedge Of Foreign Currency Debt Other Comprehensive Income, Before Tax, Cash Flow Hedges, Hedge Of Foreign Currency Debt Movements In Loans And Other Investments Movements In Loans And Other Investments Income Tax Charge (Credit) Relating To Exchange Differences On Translation Of Foreign Operations And Net Investment Hedges Other Comprehensive Income, Group Income Tax Charge (Credit) Relating To Exchange Differences On Translation Of Foreign Operations And Net Investment Hedges Other Comprehensive Income, Group Cash flows from (used in) operating activities Proceeds From Unclaimed Dividends And Share Forfeiture Proceeds From Unclaimed Dividends And Share Forfeiture Opening Balance After Adjustment, Cumulative Effect At Date Of Adjustment [Member] Opening Balance After Adjustment, Cumulative Effect At Date Of Adjustment Cash And Cash Equivalents/(Overdraft) Classified As Part Of Disposal Group Held For Sale Cash And Cash Equivalents/(Overdraft) Classified As Part Of Disposal Group Held For Sale Interest And Income Taxes Paid (Received), Classified As Operating Activities Interest And Income Taxes Paid (Received), Classified As Operating Activities Interest And Income Taxes Paid (Received), Classified As Operating Activities Other Comprehensive Income, Before Tax, Cash Flow Hedges, Cost Of Hedging Other Comprehensive Income, Before Tax, Cash Flow Hedges, Cost Of Hedging Non Operating Gains (Losses) Non Operating Gains (Losses) Cumulative Effect At Date Of Adjustment [Member] Cumulative Effect At Date Of Adjustment Cash flows from (used in) financing activities Other Comprehensive Income, Before Tax, Gains (Losses) On Remeasurements Of Defined Benefit Plans, Associates And Joint Ventures Other Comprehensive Income, Before Tax, Gains (Losses) On Remeasurements Of Defined Benefit Plans, Associates And Joint Ventures Gross profit Net Payments To Acquire Or Redeem Treasury Shares In Respect Of Subsidiaries Net Payments To Acquire Or Redeem Treasury Shares In Respect Of Subsidiaries Assets Included In Disposal Groups Classified As Held For Sale Assets Included In Disposal Groups Classified As Held For Sale Reclassification Adjustments On Cash Flow Hedges, Before Tax, Cost Of Hedging Reclassification Adjustments On Cash Flow Hedges, Before Tax, Cost Of Hedging Net cash and cash equivalents at beginning of the year Net cash and cash equivalents at end of the year Changes In Cash And Cash Equivalents [Abstract] Changes In Cash And Cash Equivalents Increase (Decrease) In Equity Though Change In Fair Value Of Put Option Increase (Decrease) In Equity Though Change In Fair Value Of Put Option Increase (Decrease) Through Tax On Reduction Of Issued Capital, Equity Increase (Decrease) Through Tax On Reduction Of Issued Capital, Equity Cash flows from (used in) investing activities Property, Plant And Equipment Including Right-Of-Use Assets Property, Plant And Equipment Including Right-Of-Use Assets Increase (Decrease) Through Associates Transactions With Non Controlling Interest, Equity Increase (Decrease) Through Associates Transactions With Non Controlling Interest, Equity Other Comprehensive Income, Before Tax, Exchange Differences On Translation Of Foreign Operations, Group Other Comprehensive Income, Before Tax, Exchange Differences On Translation Of Foreign Operations, Group Other Comprehensive Income, Before Tax, Cash Flow Hedges, Commodity Price Risk Hedging Other Comprehensive Income, Before Tax, Cash Flow Hedges, Commodity Price Risk Hedging Cumulative Effect At Date Of Adjustment [Axis] Cumulative Effect At Date Of Adjustment Increase (Decrease) Through Share-Based Payment Transactions, Incentive Plans Other Than Associates, Equity Increase (Decrease) Through Share-Based Payment Transactions, Incentive Plans Other Than Associates, Equity Income Tax Charge (Credit) Relating To Hyperinflation Adjustment Included In Other Comprehensive Income Income Tax Charge (Credit) Relating To Hyperinflation Adjustment Included In Other Comprehensive Income Exchange Gain (Loss) Recycled To The Income Statement On Translation Of Foreign Operations In Respect Of Step Acquisitions Exchange Gain (Loss) Recycled To The Income Statement On Translation Of Foreign Operations In Respect Of Step Acquisitions Purchase Of Shares Of Non-Controlling Interests Purchase Of Shares Of Non-Controlling Interests Adjustments For Increase (Decrease) In Trade And Other Payables And Provisions Adjustments For Increase (Decrease) In Trade And Other Payables And Provisions Increase (Decrease) Through Unclaimed Dividends, Equity Increase (Decrease) Through Unclaimed Dividends, Equity Reclassification Adjustments On Cash Flow Hedges, Before Tax, Commodity Price Risk Hedging Reclassification Adjustments On Cash Flow Hedges, Before Tax, Commodity Price Risk Hedging Other Retained Earnings [Member] Other Retained Earnings [Member] Other Comprehensive Income, Before Tax, Exchange Differences On Translation Of Foreign Operations, Noncontrolling Interest Other Comprehensive Income, Before Tax, Exchange Differences On Translation Of Foreign Operations, Noncontrolling Interest Reclassification Adjustments On Cash Flow Hedges, Before Tax, Hedge Of Foreign Currency Debt Reclassification Adjustments On Cash Flow Hedges, Before Tax, Hedge Of Foreign Currency Debt Adjusted weighted average number of ordinary shares outstanding Sale Of Businesses And Brands Sale Of Businesses And Brands Exchange Gain (Loss) Recycled To The Income Statement [Abstract] Exchange Gain (Loss) Recycled To The Income Statement Cash flows from (used in) operations Excise Duties Excise Duties Payments To Acquire Or Redeem Entitys Shares Share Buyback Programme Payments To Acquire Or Redeem Entitys Shares Share Buyback Programme Assets (liabilities) Purchase Of Property, Plant And Equipment And Computer Software Purchase Of Property, Plant And Equipment And Computer Software Increase (decrease) in cash and cash equivalents before effect of exchange rate changes Hyperinflation, Gain (Losses) Recognised In Other Comprehensive Income, Before Tax Hyperinflation, Gain (Losses) Recognised In Other Comprehensive Income, Before Tax