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Financial Instruments - Summary of Aggregate Contracted Principal Amounts of Company's Derivative Contracts Outstanding (Detail) ₺ in Millions, € in Millions, ₨ in Millions, ر.ق in Millions, ر.ع. in Millions, ر.س in Millions, د.إ in Millions, ¥ in Millions, £ in Millions, zł in Millions, kr in Millions, kr in Millions, kr in Millions, SFr in Millions, R in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions | Mar. 31, 2019 INR (₨) | Mar. 31, 2019 USD ($) | Mar. 31, 2019 AUD ($) | Mar. 31, 2019 CAD ($) | Mar. 31, 2019 EUR (€) | Mar. 31, 2019 GBP (£) | Mar. 31, 2019 CHF (SFr) | Mar. 31, 2019 AED (د.إ) | Mar. 31, 2019 MXN ($) | Mar. 31, 2019 NOK (kr) | Mar. 31, 2019 OMR (ر.ع.) | Mar. 31, 2019 PLN (zł) | Mar. 31, 2019 QAR (ر.ق) | Mar. 31, 2019 SAR (ر.س) | Mar. 31, 2019 TRY (₺) | Mar. 31, 2019 SGD ($) | Mar. 31, 2019 ZAR (R) | Mar. 31, 2019 DKK (kr) | Mar. 31, 2019 JPY (¥) | Mar. 31, 2019 SEK (kr) | Mar. 31, 2018 INR (₨) | Mar. 31, 2018 USD ($) | Mar. 31, 2018 AUD ($) | Mar. 31, 2018 CAD ($) | Mar. 31, 2018 EUR (€) | Mar. 31, 2018 GBP (£) | Mar. 31, 2018 CHF (SFr) | Mar. 31, 2018 AED (د.إ) | Mar. 31, 2018 MXN ($) | Mar. 31, 2018 NOK (kr) | Mar. 31, 2018 OMR (ر.ع.) | Mar. 31, 2018 PLN (zł) | Mar. 31, 2018 QAR (ر.ق) | Mar. 31, 2018 SAR (ر.س) | Mar. 31, 2018 TRY (₺) | Mar. 31, 2018 SGD ($) | Mar. 31, 2018 ZAR (R) | Mar. 31, 2018 DKK (kr) | Mar. 31, 2018 JPY (¥)
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At cost [member] | Sell: Forward contracts [member] | U.S.Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments |  | $ 333 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 904 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments |  | 1,182 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 939 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At cost [member] | Sell: Forward contracts [member] | EURO [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 134 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | € |  |  |  |  | € 32 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 58 |  |  |  |  |  |  |  |  |  |  |  |  |  |
At cost [member] | Sell: Forward contracts [member] | Great British Pound [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments | £ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | £ 147 |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | £ |  |  |  |  |  | £ 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 95 |  |  |  |  |  |  |  |  |  |  |  |  |
At cost [member] | Sell: Forward contracts [member] | Australian Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments |  |  | $ 97 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 77 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments |  |  | 82 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 77 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At cost [member] | Sell: Forward contracts [member] | Singapore, Dollars [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 11 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 6 |  |  |
At cost [member] | Sell: Forward contracts [member] | South Africa, Rand [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | R |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | R 56 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | R 132 |  |
At cost [member] | Sell: Forward contracts [member] | Canadian Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments |  |  |  | $ 56 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 14 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At cost [member] | Sell: Forward contracts [member] | Saudi Arabian Riyal [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | ر.س |  |  |  |  |  |  |  |  |  |  |  |  |  | ر.س 123 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ر.س 62 |  |  |  |  |
At cost [member] | Sell: Forward contracts [member] | United Arab Emirates, Dirhams [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | د.إ |  |  |  |  |  |  |  | د.إ 9 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | د.إ 8 |  |  |  |  |  |  |  |  |  |  |
At cost [member] | Sell: Forward contracts [member] | Poland, Zlotych [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | zł |  |  |  |  |  |  |  |  |  |  |  | zł 38 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | zł 36 |  |  |  |  |  |  |
At cost [member] | Sell: Forward contracts [member] | Switzerland, Francs [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | SFr |  |  |  |  |  |  | SFr 10 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | SFr 6 |  |  |  |  |  |  |  |  |  |  |  |
At cost [member] | Sell: Forward contracts [member] | Qatar, Rials |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | ر.ق |  |  |  |  |  |  |  |  |  |  |  |  | ر.ق 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ر.ق 11 |  |  |  |  |  |
At cost [member] | Sell: Forward contracts [member] | Turkey, New Lira |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | ₺ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ₺ 28 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ₺ 10 |  |  |  |
At cost [member] | Sell: Forward contracts [member] | Mexico, Pesos |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 61 |  |  |  |  |  |  |  |  |  |
At cost [member] | Sell: Forward contracts [member] | Norway, Krone |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | kr |  |  |  |  |  |  |  |  |  | kr 29 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | kr 34 |  |  |  |  |  |  |  |  |
At cost [member] | Sell: Forward contracts [member] | Oman, Rials |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | ر.ع. |  |  |  |  |  |  |  |  |  |  | ر.ع. 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ر.ع. 3 |  |  |  |  |  |  |  |
At cost [member] | Sell: Forward contracts [member] | Sweden, Kronor |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | kr |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | kr 35 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At cost [member] | Range forward option contracts [member] | U.S.Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments |  | 1,067 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 182 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments |  | 150 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At cost [member] | Range forward option contracts [member] | EURO [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments | € |  |  |  |  | 191 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | € |  |  |  |  | 31 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At cost [member] | Range forward option contracts [member] | Great British Pound [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments | £ |  |  |  |  |  | 153 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | £ |  |  |  |  |  | 71 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20 |  |  |  |  |  |  |  |  |  |  |  |  |
At cost [member] | Range forward option contracts [member] | Australian Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments |  |  | 56 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At cost [member] | Interest rate swaps [member] | U.S.Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments |  | 75 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 75 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At cost [member] | Buy l forward contract [member] | U.S.Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments |  | 730 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 575 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At cost [member] | Buy l forward contract [member] | Mexico, Pesos |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments |  |  |  |  |  |  |  |  | $ 9 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At cost [member] | Buy l forward contract [member] | Japan, Yen [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 154 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 399
At cost [member] | Buy l forward contract [member] | Denmark, Kroner |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | kr |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | kr 75 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | kr 9 |
At fair value [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | ₨ | ₨ 3,794 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ₨ (944) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At fair value [member] | Sell: Forward contracts [member] | U.S.Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments |  | 1,410 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 951 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments |  | 1,359 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (360) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At fair value [member] | Sell: Forward contracts [member] | EURO [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (531) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | € |  |  |  |  | 55 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6 |  |  |  |  |  |  |  |  |  |  |  |  |  |
At fair value [member] | Sell: Forward contracts [member] | Great British Pound [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments | £ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (667) |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | £ |  |  |  |  |  | (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (56) |  |  |  |  |  |  |  |  |  |  |  |  |
At fair value [member] | Sell: Forward contracts [member] | Australian Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments |  |  | 15 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 29 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments |  |  | 28 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 68 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At fair value [member] | Sell: Forward contracts [member] | Singapore, Dollars [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (1) |  |  |
At fair value [member] | Sell: Forward contracts [member] | South Africa, Rand [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | R |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | R 14 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | R (16) |  |
At fair value [member] | Sell: Forward contracts [member] | Canadian Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments |  |  |  | $ 40 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 32 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At fair value [member] | Sell: Forward contracts [member] | Saudi Arabian Riyal [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | ر.س |  |  |  |  |  |  |  |  |  |  |  |  |  | ر.س (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At fair value [member] | Sell: Forward contracts [member] | Poland, Zlotych [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | zł |  |  |  |  |  |  |  |  |  |  |  | zł 15 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | zł 12 |  |  |  |  |  |  |
At fair value [member] | Sell: Forward contracts [member] | Switzerland, Francs [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | SFr |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | SFr 3 |  |  |  |  |  |  |  |  |  |  |  |
At fair value [member] | Sell: Forward contracts [member] | Qatar, Rials |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | ر.ق |  |  |  |  |  |  |  |  |  |  |  |  | ر.ق (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ر.ق (3) |  |  |  |  |  |
At fair value [member] | Sell: Forward contracts [member] | Turkey, New Lira |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | ₺ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ₺ 12 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ₺ 8 |  |  |  |
At fair value [member] | Sell: Forward contracts [member] | Mexico, Pesos |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (6) |  |  |  |  |  |  |  |  |  |
At fair value [member] | Sell: Forward contracts [member] | Norway, Krone |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | kr |  |  |  |  |  |  |  |  |  | kr 4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | kr 3 |  |  |  |  |  |  |  |  |
At fair value [member] | Sell: Forward contracts [member] | Oman, Rials |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | ر.ع. |  |  |  |  |  |  |  |  |  |  | ر.ع. (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ر.ع. (1) |  |  |  |  |  |  |  |
At fair value [member] | Sell: Forward contracts [member] | Sweden, Kronor |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | kr |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | kr 5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At fair value [member] | Range forward option contracts [member] | U.S.Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments |  | 1,149 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments |  | 161 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (6) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At fair value [member] | Range forward option contracts [member] | EURO [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments | € |  |  |  |  | 68 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 5 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | € |  |  |  |  | € 12 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At fair value [member] | Range forward option contracts [member] | Great British Pound [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments | £ |  |  |  |  |  | 349 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | £ |  |  |  |  |  | £ 57 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | £ (2) |  |  |  |  |  |  |  |  |  |  |  |  |
At fair value [member] | Range forward option contracts [member] | Australian Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments |  |  | $ 39 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At fair value [member] | Interest rate swaps [member] | U.S.Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated derivative instruments |  | (11) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (7) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At fair value [member] | Buy l forward contract [member] | U.S.Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments |  | $ (971) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (417) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At fair value [member] | Buy l forward contract [member] | Japan, Yen [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 6
At fair value [member] | Buy l forward contract [member] | Denmark, Kroner |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of derivative contract outstanding [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-designated derivative instruments | kr |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | kr (13) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | kr (1) |

X
- Definition The fair value of financial instruments designated as hedging instruments. Hedging instruments are designated derivatives or (for a hedge of the risk of changes in foreign currency exchange rates only) designated non-derivative financial assets or non-derivative financial liabilities whose fair value or cash flows are expected to offset changes in the fair value or cash flows of a designated hedged item. [Refer: At fair value [member]; Derivatives [member]; Derivative financial assets; Derivative financial liabilities; Financial instruments, class [member]; Financial assets; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2021-01-01 -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 22 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_22_b&doctype=Standard&book=b -URIDate 2018-03-16 + Details
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- Definition Disclosure of derivative contract outstanding. + References No definition available. + Details
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- Definition Financial instruments non designated as hedging instruments, at fair value. + References No definition available. + Details
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