Group income statement [axis] Before non-underlying items [member] Non-underlying items [member] Total [member] Profit or loss [table] Profit or loss [line items] Remeasurement of the recoverability of retirement benefit surplus Actuarial gains on defined benefit pension schemes Total net assets Net cash inflow from operating activities Net cash outflow from investing activities Purchase of own shares for employee share schemes classified as financing activities Purchase of own shares for cancellation classified as financing activities Net cash outflow from financing activities Interest paid on lease liabilities from continuing operations classified as operating activities Interest paid on lease liabilities from discontinued operations classified as operating activities Capital repayments of obligations under leases for discontinued operations classified as financing activities Called up share capital and share premium [member] Non-cash movement on non-controlling interests Description of accounting policy for alternative performance measures (APMs) Description of accounting policy for non-underlying items Description of accounting policy for restatement of prior year financial statements Description of accounting policy for supplier income Disclosure of non-underlying items Disclosure of supplier income