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Earnings per share (Tables)
 6 Months Ended
Jun. 30, 2018
Text block1 [abstract]  
Calculation of Basic and Diluted EPS

Basic EPS

The calculation of basic EPS is as follows:

 

      Six months
ended
30 June
2018		      Six months
ended
30 June
2017		     

Year

ended
31 December
2017

  

Earnings1 (£ million)

      672.4        596.1        1,816.6  

Weighted average shares used in basic EPS calculation (million)

      1,250.5        1,266.2        1,261.1  

EPS

      53.8p        47.1p        144.0p  

Note

1 

Earnings is equivalent to profit for the period attributable to equity holders of the parent.

 

Diluted EPS

The calculation of diluted EPS is as follows:

 

      Six months
ended
30 June
2018		      Six months
ended
30 June
2017		     

Year

ended
31 December
2017

  

Diluted earnings (£ million)

      672.4        596.1        1,816.6  

Weighted average shares used in diluted EPS calculation (million)

      1,259.4        1,279.7        1,275.8  

Diluted EPS

      53.4p        46.6p        142.4p  
Reconciliation Between Shares Used in Calculating Basic and Diluted EPS

A reconciliation between the shares used in calculating basic and diluted EPS is as follows:

 

      Six months
ended
30 June
2018		      Six months
ended
30 June
2017		     

Year

ended
31 December
2017

  
      m      m      m  

Weighted average shares used in basic EPS calculation

      1,250.5        1,266.2        1,261.1  

Dilutive share options outstanding

      0.5        2.1        1.8  

Other potentially issuable shares

      8.4        11.4        12.9  

Weighted average shares used in diluted EPS calculation

      1,259.4        1,279.7        1,275.8