XML 259 R119.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Finance income and finance costs - Summary of finance income and finance costs (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Disclosure Of Finance Income Expense Explanatory [Abstract]      
Finance income from equity accounted units $ 4 $ 7 $ 4
Other finance income (including bank deposits, net investment in leases, and other financial assets) 296 242 137
Total finance income 300 249 141
Interest on:      
Financial liabilities at amortised cost and associated derivatives (816) (775) (819)
Finance leases (55) (2) (3)
Fair value movements:      
Bonds designated as hedged items in fair value hedges (185) 96 28
Derivatives designated as hedging instruments in fair value hedges 181 (73) (22)
Loss on early redemption of bonds 0 (94) (256)
Amounts capitalised 321 296 224
Total finance costs $ (554) $ (552) $ (848)