Disclosure Of Fair Value Measurement [Text Block]
| Concept |
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As at 2018-12-31 |
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| Disclosure of fair value measurement [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of assets [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of assets [abstract] | ||||||||||||||||||||||||||||
| Disclosure of fair value measurement of assets [line items] | ||||||||||||||||||||||||||||
| Assets | — | — | — |
404,379,000,000
USD
|
— | — | — | — | — | — | — | — | — |
379,268,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, assets [abstract] | ||||||||||||||||||||||||||||
| Disclosure of fair value measurement of liabilities [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of liabilities [abstract] | ||||||||||||||||||||||||||||
| Disclosure of fair value measurement of liabilities [line items] | ||||||||||||||||||||||||||||
| Liabilities | — | — | — |
229,053,000,000
USD
|
— | — | — | — | — | — | — | — | — |
220,731,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, liabilities [abstract] | ||||||||||||||||||||||||||||
| Disclosure of fair value measurement of equity [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of equity [abstract] | ||||||||||||||||||||||||||||
| Disclosure of fair value measurement of equity [line items] | ||||||||||||||||||||||||||||
| Equity |
153,026,000,000
USD
|
610,000,000
USD
|
18,909,000,000
USD
|
175,326,000,000
USD
|
171,966,000,000
USD
|
3,360,000,000
USD
|
641,000,000
USD
|
142,616,000,000
USD
|
3,227,000,000
USD
|
155,310,000,000
USD
|
651,000,000
USD
|
709,000,000
USD
|
12,752,000,000
USD
|
158,537,000,000
USD
|
186,476,000,000
USD
|
3,987,000,000
USD
|
190,463,000,000
USD
|
172,431,000,000
USD
|
657,000,000
USD
|
1,063,000,000
USD
|
14,451,000,000
USD
|
198,650,000,000
USD
|
3,888,000,000
USD
|
202,538,000,000
USD
|
685,000,000
USD
|
1,260,000,000
USD
|
16,615,000,000
USD
|
182,610,000,000
USD
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |