Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2020-12-31 |
As at 2019-12-31 |
|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||
| Property, plant and equipment [abstract] | ||
| Property, plant and equipment |
26,481,000,000
USD
|
27,516,000,000
USD
|
| Intangible assets and goodwill [abstract] | ||
| Intangible assets and goodwill |
5,145,000,000
USD
|
4,219,000,000
USD
|
| Investments accounted for using equity method [abstract] | ||
| Investments in associates accounted for using equity method |
951,000,000
USD
|
937,000,000
USD
|
| Investments in joint ventures accounted for using equity method |
1,260,000,000
USD
|
1,204,000,000
USD
|
| Trade and other non-current receivables [abstract] | ||
| Other non-current receivables |
235,000,000
USD
|
318,000,000
USD
|
| Miscellaneous non-current assets [abstract] | ||
| Non-current net defined benefit asset |
225,000,000
USD
|
409,000,000
USD
|
| Non-current derivative financial assets |
269,000,000
USD
|
161,000,000
USD
|
| Non-current investments other than investments accounted for using equity method |
107,000,000
USD
|
78,000,000
USD
|
| Trade and other current receivables [abstract] | ||
| Current trade receivables |
3,634,000,000
USD
|
3,531,000,000
USD
|
| Current prepayments and current accrued income other than current contract assets [abstract] | ||
| Current prepayments [abstract] | ||
| Current prepayments |
464,000,000
USD
|
520,000,000
USD
|
| Other current receivables |
869,000,000
USD
|
857,000,000
USD
|
| Trade and other current receivables |
5,603,000,000
USD
|
5,351,000,000
USD
|
| Current prepayments and current accrued income including current contract assets [abstract] | ||
| Categories of non-current financial assets [abstract] | ||
| Non-current loans and receivables |
136,000,000
USD
|
160,000,000
USD
|
| Non-current financial assets |
3,183,000,000
USD
|
3,267,000,000
USD
|
| Categories of current financial assets [abstract] | ||
| Current loans and receivables |
91,000,000
USD
|
239,000,000
USD
|
| Classes of current inventories [abstract] | ||
| Current inventories |
1,049,000,000
USD
|
1,430,000,000
USD
|
| Classes of current inventories, alternative [abstract] | ||
| Cash and cash equivalents [abstract] | ||
| Cash and cash equivalents |
5,865,000,000
USD
|
4,768,000,000
USD
|
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract] | ||
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners |
218,000,000
USD
|
149,000,000
USD
|
| Miscellaneous current assets [abstract] | ||
| Current derivative financial assets |
307,000,000
USD
|
43,000,000
USD
|
| Current investments |
1,000,000
USD
|
2,000,000
USD
|
| Borrowings [abstract] | ||
| Non-current portion of non-current borrowings |
5,868,000,000
USD
|
7,455,000,000
USD
|
| Current borrowings and current portion of non-current borrowings [abstract] | ||
| Current borrowings |
758,000,000
USD
|
721,000,000
USD
|
| Non-current portion of non-current borrowings, by type [abstract] | ||
| Trade and other non-current payables [abstract] | ||
| Other non-current payables |
81,000,000
USD
|
44,000,000
USD
|
| Trade and other current payables [abstract] | ||
| Current trade payables |
5,156,000,000
USD
|
5,567,000,000
USD
|
| Other current payables |
1,279,000,000
USD
|
1,170,000,000
USD
|
| Miscellaneous non-current liabilities [abstract] | ||
| Non-current net defined benefit liability |
297,000,000
USD
|
272,000,000
USD
|
| Non-current derivative financial liabilities |
289,000,000
USD
|
328,000,000
USD
|
| Other non-current liabilities |
1,985,000,000
USD
|
1,977,000,000
USD
|
| Miscellaneous current liabilities [abstract] | ||
| Current derivative financial liabilities |
228,000,000
USD
|
87,000,000
USD
|
| Other current liabilities |
7,814,000,000
USD
|
7,757,000,000
USD
|
| Issued capital [abstract] | ||
| Issued capital |
3,632,000,000
USD
|
3,774,000,000
USD
|
| Net assets (liabilities) [abstract] | ||
| Assets |
56,117,000,000
USD
|
55,399,000,000
USD
|
| Liabilities |
25,263,000,000
USD
|
26,562,000,000
USD
|
| Net current assets (liabilities) [abstract] | ||
| Current assets |
12,736,000,000
USD
|
11,700,000,000
USD
|
| Current liabilities |
10,054,000,000
USD
|
9,835,000,000
USD
|
| Assets less current liabilities [abstract] |