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Reconciliation of profit for the year to cash flow from operations before contract acquisition costs (Tables)
12 Months Ended
Dec. 31, 2019
Text block [abstract]  
Summary of Reconciliation of Profit for the Year to Cash Flow From Operations Before Contract Acquisition Costs
   
2019
$m
   2018
Restated
$m
   2017
Restated
$m
 
Profit for the year
  
 
386
 
   350    535 
 
  
 
 
   
 
 
   
 
 
 
Adjustments for:
               
Net financial expenses
  
 
115
 
   96    91 
Fair value (gains)/losses on contingent purchase consideration
 
 
(27
)
 
 
4
 
 
 
 
 
 
 
  
 
 
   
 
 
   
 
 
 
Income tax charge (note 8)
  
 
156
 
   132    118 
 
  
 
 
   
 
 
   
 
 
 
Depreciation and amortisation
  
 
116
 
   115    112 
 
  
 
 
   
 
 
   
 
 
 
System Fund depreciation and amortisation
  
 
54
 
   49    41 
 
  
 
 
   
 
 
   
 
 
 
Impairment charges (note 6)
  
 
131
 
   —      18 
 
  
 
 
   
 
 
   
 
 
 
Other operating exceptional items (including System Fund) (note 6)
  
 
83
 
   151    (13
 
  
 
 
   
 
 
   
 
 
 
Share-based payments cost
  
 
42
 
   38    27 
 
  
 
 
   
 
 
   
 
 
 
Dividends from associates and joint ventures (note 1
6
)
  
 
7
 
   5    4 
 
  
 
 
   
 
 
   
 
 
 
Increase in trade and other receivables
  
 
(50
   (43   (71
 
  
 
 
 
  
 
 
   
 
 
 
Increase in contract costs
  
 
(11
   (3   (5
 
  
 
 
 
  
 
 
   
 
 
 
Increase in deferred revenue
  
 
57
 
   141    43 
 
  
 
 
 
  
 
 
   
 
 
 
(Decrease)/increase in trade and other payables
  
 
(63
   11    38 
 
  
 
 
 
  
 
 
   
 
 
 
Utilisation of provisions, net of charge (note 2
1
)
  
 
7
 
   (6   —   
 
  
 
 
 
  
 
 
   
 
 
 
Retirement benefit contributions, net of costs
  
 
(3
   (12   (1
 
  
 
 
 
  
 
 
   
 
 
 
Cash flows relating to exceptional items
  
 
(55
   (137   (44
 
  
 
 
   
 
 
   
 
 
 
Contract assets deduction in revenue
  
 
21
 
   19    17 
 
  
 
 
   
 
 
   
 
 
 
Other items
  
 
2
 
   4    (4
 
  
 
 
   
 
 
   
 
 
 
Total adjustments
   
582
    564    371 
 
  
 
 
   
 
 
   
 
 
 
Cash flow from operations before contract acquisition costs
  
 
968
 
   914    906