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Cash and cash equivalents (Tables)
 12 Months Ended
Dec. 31, 2018
Cash And Cash Equivalents [Abstract]  
Summary of cash and cash equivalents

 

 

 

 

 

2018

 

 

2017

 

 

Note

 

US$m

 

US$m

 

Cash at bank and in hand

 

 

 

 

740

 

 

1,035

 

Money market funds and other cash equivalents

 

 

 

 

10,033

 

 

9,515

 

Balance per Group balance sheet

 

 

 

 

10,773

 

 

10,550

 

Bank overdrafts repayable on demand (unsecured)

 

22

 

 

(1

)

 

(3

)

Cash and cash equivalents included in Assets held for sale

 

19

 

 

117

 

 

-

 

Balance per Group cash flow statement

 

 

 

 

10,889

 

 

10,547