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Financial instruments (Tables) | 6 Months Ended
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Jun. 30, 2021
Financial Instruments [Abstract] |
Disclosure of fair value measurement of assets | The below tables summarize financial assets and liabilities measured at fair value on a recurring basis or at amortized cost or cost as of June 30, 2021 and December 31, 2020.
| June 30, 2021
($ millions) | Level 1 | Level 2 | Level 3 | Valued at amortized cost or cost(3) | Total
Non-current financial assets |  |  |  |  |
Long-term financial investments measured at FVOCI | — |  | — |  | 37 |  | — |  | 37 |
Long-term financial investments measured at FVPL | — |  | — |  | 10 |  | — |  | 10 |
Long-term receivables from customers | — |  | — |  | — |  | 113 |  | 113 |
Deferred compensation assets(1) | 148 |  | — |  | — |  | — |  | 148 |
Non-current minimum lease payments from finance lease agreements | — |  | — |  | — |  | 38 |  | 38 |
Long-term loans, advances and security deposits | — |  | — |  | — |  | 22 |  | 22 |
Non-current financial assets | 148 |  | — |  | 47 |  | 173 |  | 368 |
Current financial assets |  |  |  |  |
Money market funds | 445 |  | — |  | — |  | — |  | 445 |
Current portion of long-term financial investments measured at FVPL(2) | — |  | — |  | 5 |  | — |  | 5 |
Current portion of long-term receivables from customers(2) | — |  | — |  | — |  | 105 |  | 105 |
Current portion of minimum lease payments from finance lease agreements(2) | — |  | — |  | — |  | 30 |  | 30 |
Other receivables, security deposits and current assets(2) | — |  | — |  | — |  | 62 |  | 62 |
VAT receivables(2) | — |  | — |  | — |  | 67 |  | 67 |
Derivative financial instruments(2) | — |  | 3 |  | — |  | — |  | 3 |
Current financial assets | 445 |  | 3 |  | 5 |  | 264 |  | 717 |
Financial assets at fair value and amortized cost or cost | 593 |  | 3 |  | 52 |  | 437 |  | 1,085 |
Financial liabilities |  |  |  |  |
Contingent consideration liabilities | — |  | — |  | (149) |  | — |  | (149) |
Non-current financial debt | — |  | — |  | — |  | (3,986) |  | (3,986) |
Current financial debt | — |  | — |  | — |  | (132) |  | (132) |
Derivative financial instruments | — |  | (4) |  | — |  | — |  | (4) |
Financial liabilities at fair value and amortized cost | — |  | (4) |  | (149) |  | (4,118) |  | (4,271) |
(1) Recorded in Other non-current assets. (2) Recorded in Other current assets. (3) The carrying amount is a reasonable approximation of fair value, with the exception of Series 2026, 2029, 2030, and 2049 notes recorded in Non-current financial debt with a fair value of $2,906 million and a carrying value of $2,726 million as of June 30, 2021. The fair value of notes was determined using Level 2 inputs. The notes were valued using the quoted market price for such notes, which have low trading volumes.
| December 31, 2020
($ millions) | Level 1 | Level 2 | Level 3 | Valued at amortized cost or cost(3) | Total
Non-current financial assets |  |  |  |  |
Long-term financial investments measured at FVOCI | — |  | — |  | 28 |  | — |  | 28 |
Long-term financial investments measured at FVPL | — |  | — |  | 12 |  | — |  | 12 |
Long-term receivables from customers | — |  | — |  | — |  | 117 |  | 117 |
Deferred compensation assets(1) | 137 |  | — |  | — |  | — |  | 137 |
Non-current minimum lease payments from finance lease agreements | — |  | — |  | — |  | 39 |  | 39 |
Long-term loans, advances and security deposits | — |  | — |  | — |  | 22 |  | 22 |
Non-current financial assets | 137 |  | — |  | 40 |  | 178 |  | 355 |
Current financial assets |  |  |  |  |
Money market funds | 625 |  | — |  | — |  | — |  | 625 |
Current portion of long-term financial investments measured at FVPL(2) | — |  | — |  | 12 |  | — |  | 12 |
Current portion of long-term receivables from customers(2) | — |  | — |  | — |  | 107 |  | 107 |
Current portion of minimum lease payments from finance lease agreements(2) | — |  | — |  | — |  | 29 |  | 29 |
Other receivables, security deposits and current assets(2) | — |  | — |  | — |  | 88 |  | 88 |
VAT receivables(2) | — |  | — |  | — |  | 72 |  | 72 |
Derivative financial instruments(2) | — |  | 3 |  | — |  | — |  | 3 |
Current financial assets | 625 |  | 3 |  | 12 |  | 296 |  | 936 |
Financial assets at fair value and amortized cost or cost | 762 |  | 3 |  | 52 |  | 474 |  | 1,291 |
Financial liabilities |  |  |  |  |
Contingent consideration liabilities | — |  | — |  | (157) |  | — |  | (157) |
Non-current financial debt | — |  | — |  | — |  | (3,949) |  | (3,949) |
Current financial debt | — |  | — |  | — |  | (162) |  | (162) |
Derivative financial instruments | — |  | (7) |  | — |  | — |  | (7) |
Financial liabilities at fair value and amortized cost | — |  | (7) |  | (157) |  | (4,111) |  | (4,275) |
(1) Recorded in Other non-current assets. (2) Recorded in Other current assets. (3) The carrying amount is a reasonable approximation of fair value, with the exception of Series 2026, 2029, 2030, and 2049 notes recorded in Non-current financial debt with a fair value of $3,036 million and a carrying value of $2,726 million as of December 31, 2020. The fair value of notes was determined using Level 2 inputs. The notes were valued using the quoted market price for such notes, which have low trading volumes. Financial assets
|  | Long-term financial investments measured at FVOCI |  | Financial investments measured at FVPL
($ millions) |  | 2021 | 2020 |  | 2021 | 2020
Balance as of January 1 |  | 28 |  | 31 |  |  | 24 |  | 61 |
Additions |  | 9 |  | — |  |  | — |  | — |
(Loss) recognized in consolidated statement of comprehensive income/(loss) |  | — |  | (10) |  |  | — |  | — |
Unrealized (losses)/gains in consolidated income statement |  | — |  | — |  |  | (1) |  | 3 |
Amortization |  | — |  | — |  |  | (8) |  | (23) |
Balance as of June 30 |  | 37 |  | 21 |  |  | 15 |  | 41 |
Disclosure of fair value measurement of liabilities | The below tables summarize financial assets and liabilities measured at fair value on a recurring basis or at amortized cost or cost as of June 30, 2021 and December 31, 2020.
| June 30, 2021
($ millions) | Level 1 | Level 2 | Level 3 | Valued at amortized cost or cost(3) | Total
Non-current financial assets |  |  |  |  |
Long-term financial investments measured at FVOCI | — |  | — |  | 37 |  | — |  | 37 |
Long-term financial investments measured at FVPL | — |  | — |  | 10 |  | — |  | 10 |
Long-term receivables from customers | — |  | — |  | — |  | 113 |  | 113 |
Deferred compensation assets(1) | 148 |  | — |  | — |  | — |  | 148 |
Non-current minimum lease payments from finance lease agreements | — |  | — |  | — |  | 38 |  | 38 |
Long-term loans, advances and security deposits | — |  | — |  | — |  | 22 |  | 22 |
Non-current financial assets | 148 |  | — |  | 47 |  | 173 |  | 368 |
Current financial assets |  |  |  |  |
Money market funds | 445 |  | — |  | — |  | — |  | 445 |
Current portion of long-term financial investments measured at FVPL(2) | — |  | — |  | 5 |  | — |  | 5 |
Current portion of long-term receivables from customers(2) | — |  | — |  | — |  | 105 |  | 105 |
Current portion of minimum lease payments from finance lease agreements(2) | — |  | — |  | — |  | 30 |  | 30 |
Other receivables, security deposits and current assets(2) | — |  | — |  | — |  | 62 |  | 62 |
VAT receivables(2) | — |  | — |  | — |  | 67 |  | 67 |
Derivative financial instruments(2) | — |  | 3 |  | — |  | — |  | 3 |
Current financial assets | 445 |  | 3 |  | 5 |  | 264 |  | 717 |
Financial assets at fair value and amortized cost or cost | 593 |  | 3 |  | 52 |  | 437 |  | 1,085 |
Financial liabilities |  |  |  |  |
Contingent consideration liabilities | — |  | — |  | (149) |  | — |  | (149) |
Non-current financial debt | — |  | — |  | — |  | (3,986) |  | (3,986) |
Current financial debt | — |  | — |  | — |  | (132) |  | (132) |
Derivative financial instruments | — |  | (4) |  | — |  | — |  | (4) |
Financial liabilities at fair value and amortized cost | — |  | (4) |  | (149) |  | (4,118) |  | (4,271) |
(1) Recorded in Other non-current assets. (2) Recorded in Other current assets. (3) The carrying amount is a reasonable approximation of fair value, with the exception of Series 2026, 2029, 2030, and 2049 notes recorded in Non-current financial debt with a fair value of $2,906 million and a carrying value of $2,726 million as of June 30, 2021. The fair value of notes was determined using Level 2 inputs. The notes were valued using the quoted market price for such notes, which have low trading volumes.
| December 31, 2020
($ millions) | Level 1 | Level 2 | Level 3 | Valued at amortized cost or cost(3) | Total
Non-current financial assets |  |  |  |  |
Long-term financial investments measured at FVOCI | — |  | — |  | 28 |  | — |  | 28 |
Long-term financial investments measured at FVPL | — |  | — |  | 12 |  | — |  | 12 |
Long-term receivables from customers | — |  | — |  | — |  | 117 |  | 117 |
Deferred compensation assets(1) | 137 |  | — |  | — |  | — |  | 137 |
Non-current minimum lease payments from finance lease agreements | — |  | — |  | — |  | 39 |  | 39 |
Long-term loans, advances and security deposits | — |  | — |  | — |  | 22 |  | 22 |
Non-current financial assets | 137 |  | — |  | 40 |  | 178 |  | 355 |
Current financial assets |  |  |  |  |
Money market funds | 625 |  | — |  | — |  | — |  | 625 |
Current portion of long-term financial investments measured at FVPL(2) | — |  | — |  | 12 |  | — |  | 12 |
Current portion of long-term receivables from customers(2) | — |  | — |  | — |  | 107 |  | 107 |
Current portion of minimum lease payments from finance lease agreements(2) | — |  | — |  | — |  | 29 |  | 29 |
Other receivables, security deposits and current assets(2) | — |  | — |  | — |  | 88 |  | 88 |
VAT receivables(2) | — |  | — |  | — |  | 72 |  | 72 |
Derivative financial instruments(2) | — |  | 3 |  | — |  | — |  | 3 |
Current financial assets | 625 |  | 3 |  | 12 |  | 296 |  | 936 |
Financial assets at fair value and amortized cost or cost | 762 |  | 3 |  | 52 |  | 474 |  | 1,291 |
Financial liabilities |  |  |  |  |
Contingent consideration liabilities | — |  | — |  | (157) |  | — |  | (157) |
Non-current financial debt | — |  | — |  | — |  | (3,949) |  | (3,949) |
Current financial debt | — |  | — |  | — |  | (162) |  | (162) |
Derivative financial instruments | — |  | (7) |  | — |  | — |  | (7) |
Financial liabilities at fair value and amortized cost | — |  | (7) |  | (157) |  | (4,111) |  | (4,275) |
(1) Recorded in Other non-current assets. (2) Recorded in Other current assets. (3) The carrying amount is a reasonable approximation of fair value, with the exception of Series 2026, 2029, 2030, and 2049 notes recorded in Non-current financial debt with a fair value of $3,036 million and a carrying value of $2,726 million as of December 31, 2020. The fair value of notes was determined using Level 2 inputs. The notes were valued using the quoted market price for such notes, which have low trading volumes. Financial liabilities
| Contingent consideration liabilities
($ millions) | 2021 | 2020
Balance as of January 1 | (157) |  | (243) |
Accretion for passage of time | (7) |  | (9) |
Adjustments for changes in assumptions | — |  | 40 |
Payments | 15 |  | 20 |
Balance as of June 30 | (149) |  | (192) |

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