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Financial instruments - additional disclosures (Details 6) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Associated companies at fair value through profit and loss [member] |  |
Disclosure of derivative financial instruments [line items] |  |
Fair value measurement, carrying value, level 3, at beginning of period | $ 192 | $ 211
Fair value gains and other adjustments including from divestments recognized in the consolidated income statement |  | 2
Fair value losses (including impairments and amortizations) and other adjustments recognized in the consolidated income statement | (63) | (26)
Fair value adjustments recognized in the consolidated statement of comprehensive income |  | (2)
Purchases fair value measurement assets | 4 | 34
Disposals fair value measurement assets |  | (27)
Reclassification fair value measurement assets | (4) |
Fair value measurement, carrying value, level 3, at end of period | 129 | 192
Total fair value gains and (losses) recognized in the consolidated income statement for assets and liabilities held at period end | (63) | (24)
Fund investments [member] |  |
Disclosure of derivative financial instruments [line items] |  |
Fair value measurement, carrying value, level 3, at beginning of period | 338 | 366
Fair value gains and other adjustments including from divestments recognized in the consolidated income statement | 4 | 70
Fair value losses (including impairments and amortizations) and other adjustments recognized in the consolidated income statement | (78) | (8)
Fair value adjustments recognized in the consolidated statement of comprehensive income |  | (1)
Purchases fair value measurement assets | 11 | 12
Disposals fair value measurement assets | (12) | (71)
Reclassification fair value measurement assets | (2) | (30)
Fair value measurement, carrying value, level 3, at end of period | 261 | 338
Total fair value gains and (losses) recognized in the consolidated income statement for assets and liabilities held at period end | (74) | 62
Long term financial investments [member] |  |
Disclosure of derivative financial instruments [line items] |  |
Fair value measurement, carrying value, level 3, at beginning of period | 617 | 460
Fair value gains and other adjustments including from divestments recognized in the consolidated income statement | 35 | 69
Fair value losses (including impairments and amortizations) and other adjustments recognized in the consolidated income statement | (84) | (13)
Fair value adjustments recognized in the consolidated statement of comprehensive income | 24 | 51
Purchases fair value measurement assets | 160 | 137
Disposals fair value measurement assets | (13) | (43)
Reclassification fair value measurement assets | (40) | (44)
Fair value measurement, carrying value, level 3, at end of period | 699 | 617
Total fair value gains and (losses) recognized in the consolidated income statement for assets and liabilities held at period end | (49) | 56
Contingent consideration receivables [member] |  |
Disclosure of derivative financial instruments [line items] |  |
Fair value measurement, carrying value, level 3, at beginning of period | 641 | 625
Fair value gains and other adjustments including from divestments recognized in the consolidated income statement | 53 | 124
Fair value losses (including impairments and amortizations) and other adjustments recognized in the consolidated income statement |  | (44)
Fair value adjustments recognized in the consolidated statement of comprehensive income |  | (22)
Cash receipts and payments fair value measurement assets | (44) | (42)
Fair value measurement, carrying value, level 3, at end of period | 650 | 641
Total fair value gains and (losses) recognized in the consolidated income statement for assets and liabilities held at period end | 53 | 80
Contingent consideration payables [member] |  |
Disclosure of derivative financial instruments [line items] |  |
Fair value measurement, carrying value, level 3, at beginning of period | (1,075) | (1,046)
Fair value gains and other adjustments including from divestments recognized in the consolidated income statement | 530 | 182
Fair value losses (including impairments and amortizations) and other adjustments recognized in the consolidated income statement | (114) | (189)
Fair value adjustments recognized in the consolidated statement of comprehensive income | 11 | 22
Purchases fair value measurement assets | (231) | (88)
Cash receipts and payments fair value measurement assets | 44 | 44
Fair value measurement, carrying value, level 3, at end of period | (835) | (1,075)
Total fair value gains and (losses) recognized in the consolidated income statement for assets and liabilities held at period end | 416 | (7)
Other financial liabilities [member] |  |
Disclosure of derivative financial instruments [line items] |  |
Fair value measurement, carrying value, level 3, at beginning of period | (19) |
Fair value gains and other adjustments including from divestments recognized in the consolidated income statement | 15 |
Fair value losses (including impairments and amortizations) and other adjustments recognized in the consolidated income statement | (18) |
Purchases fair value measurement assets | (238) |
Cash receipts and payments fair value measurement assets | 28 |
Fair value measurement, carrying value, level 3, at end of period | (232) | $ (19)
Total fair value gains and (losses) recognized in the consolidated income statement for assets and liabilities held at period end | $ (3) |

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