XML 42 R33.htm IDEA: XBRL DOCUMENT v3.10.0.1
Basis of Preparation - Summary of financial assets classified into appropriate IFRS 9 categories (Detail) - USD ($)
$ in Millions
Jun. 30, 2018
Jan. 01, 2018
Disclosure Of Financial Instruments [Line Items]    
Financial Assets $ 11,577  
Reclassification of trade and other receivables from amortised cost to FVPL   $ 1,316
Revaluation of funds   1
Opening balance - IFRS 9 (including expected credit losses and revaluation of funds)   15,282
IAS 39    
Disclosure Of Financial Instruments [Line Items]    
Financial Assets   15,288
IFRS 9 [member]    
Disclosure Of Financial Instruments [Line Items]    
Financial Assets   15,288
Impairment provision resulting from the application of the ECL model   (7)
IFRS 9 [member] | IFRS 9 Classification Amortised Cost    
Disclosure Of Financial Instruments [Line Items]    
Financial Assets   10,707
IFRS 9 [member] | IFRS 9 Classification Amortised Cost    
Disclosure Of Financial Instruments [Line Items]    
Financial Assets   46
IFRS 9 [member] | IFRS 9 Classification Amortised Cost    
Disclosure Of Financial Instruments [Line Items]    
Financial Assets   4,535
IAS 39 Classification Loans Receivable Held To Maturity | IAS 39    
Disclosure Of Financial Instruments [Line Items]    
Financial Assets   1,482
IAS 39 Classification Loans Receivable Held To Maturity | Trade and Other Receivables [Member] | IFRS 9 Classification Amortised Cost    
Disclosure Of Financial Instruments [Line Items]    
Reclassification of trade and other receivables from amortised cost to FVPL   1,316
IAS 39 Classification Loans Receivable Held To Maturity | Other Investment Including Loans | IFRS 9 Classification Amortised Cost    
Disclosure Of Financial Instruments [Line Items]    
Reclassification of a financial asset from held to maturity to FVPL   6
IAS 39 Classification Loans Receivable Held To Maturity | Cash and cash equivalents [Member] | IFRS 9 Classification Amortised Cost    
Disclosure Of Financial Instruments [Line Items]    
Reclassifcation of money market funds from amortised cost to FVPL   7,813
IAS 39 Classification Loans Receivable Held To Maturity | Investments In Equity Shares And Funds | IFRS 9 Classification Amortised Cost    
Disclosure Of Financial Instruments [Line Items]    
Reclassification of investments from available for sale to FVPL   90
IAS 39 Classification Loans Receivable Held To Maturity | IAS 39    
Disclosure Of Financial Instruments [Line Items]    
Financial Assets   136
IAS 39 Classification Loans Receivable Held To Maturity | Investments In Equity Shares And Funds | IFRS 9 Classification Amortised Cost    
Disclosure Of Financial Instruments [Line Items]    
Reclassification of investments from available for sale to FVPL   (90)
IAS 39 Classification Loans Receivable Held To Maturity | IAS 39    
Disclosure Of Financial Instruments [Line Items]    
Financial Assets   13,670
IAS 39 Classification Loans Receivable Held To Maturity | Trade and Other Receivables [Member] | IFRS 9 Classification Amortised Cost    
Disclosure Of Financial Instruments [Line Items]    
Reclassification of trade and other receivables from amortised cost to FVPL   (1,316)
IAS 39 Classification Loans Receivable Held To Maturity | Other Investment Including Loans | IFRS 9 Classification Amortised Cost    
Disclosure Of Financial Instruments [Line Items]    
Reclassification of a financial asset from held to maturity to FVPL   (6)
IAS 39 Classification Loans Receivable Held To Maturity | Cash and cash equivalents [Member] | IFRS 9 Classification Amortised Cost    
Disclosure Of Financial Instruments [Line Items]    
Reclassifcation of money market funds from amortised cost to FVPL   $ (7,813)