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Financial instruments - additional disclosures (Tables)
 12 Months Ended
Dec. 31, 2020
Financial Instruments [Abstract]  
Disclosure of financial assets
Financial assets
($ millions)20202019
Long-term financial investments measured at FVOCI28 31 
Long-term financial investments measured at FVPL12 28 
Long-term receivables from customers117 136 
Minimum lease payments from finance lease agreements39 78 
Long-term loans, advances, and security deposits22 34 
Total financial assets218 307 
The below table provides detail related to financial instruments as of December 31, 2020 and 2019.
($ millions)Note20202019
Cash and cash equivalents
Cash in current accounts262 392 
Cash held in time deposits and money market funds1,295 430 
Total Cash and cash equivalents1,557 822 
Financial assets - measured at fair value through other comprehensive income ("FVOCI")
Long-term financial investments1228 31 
Total financial assets - measured at FVOCI28 31 
Financial assets - measured at amortized costs(1)
Trade receivables141,361 1,390 
Income tax receivables21 17 
Other current assets (excluding prepaid expenses and other current assets measured at FVPL)15296 379 
Long-term receivables from customers12117 136 
Non-current minimum lease payments from finance lease agreements1239 78 
Long-term loans, advances, and security deposits1222 34 
Total financial assets - measured at amortized costs1,856 2,034 
Financial assets - measured at fair value through profit and loss ("FVPL")
Deferred compensation assets12137 122 
Current portion of long-term financial investments1512 33 
Derivative financial instruments153 1 
Long-term financial investments1212 28 
Total financial assets - measured at FVPL164 184 
Total financial assets3,605 3,071 
Financial liabilities - measured at amortized cost or cost(1)
Current financial liabilities
Financial debts17162 245 
Lease liabilities1670 61 
Trade payables876 833 
Total current financial liabilities - measured at amortized cost or cost1,108 1,139 
Non-current financial liabilities
Financial debts173,949 3,218 
Lease liabilities16315 280 
Total non-current financial liabilities - measured at amortized cost or cost4,264 3,498 
Total financial liabilities - measured at amortized cost or cost5,372 4,637 
Financial liabilities - measured at FVPL
Contingent consideration liabilities19/20157 243 
Derivative financial instruments177 16 
Total financial liabilities - measured at FVPL164 259 
Total financial liabilities5,536 4,896 
Net financial assets and financial liabilities(1,931)(1,825)
(1)The carrying amount is a reasonable approximation of fair value, with the exception of the Series 2026, 2029, 2030 and 2049 notes recorded in Non-current financial debts with a fair value of $3,036 million and carrying value of $2,726 million as of December 31, 2020 and a fair value of $2,049 million and carrying value of $1,979 million as of December 31, 2019. The fair value of notes was determined using level 2 inputs. The notes were valued using a quoted market price for such notes, which have low trading volumes.
Disclosure of financial liabilities
The below table provides detail related to financial instruments as of December 31, 2020 and 2019.
($ millions)Note20202019
Cash and cash equivalents
Cash in current accounts262 392 
Cash held in time deposits and money market funds1,295 430 
Total Cash and cash equivalents1,557 822 
Financial assets - measured at fair value through other comprehensive income ("FVOCI")
Long-term financial investments1228 31 
Total financial assets - measured at FVOCI28 31 
Financial assets - measured at amortized costs(1)
Trade receivables141,361 1,390 
Income tax receivables21 17 
Other current assets (excluding prepaid expenses and other current assets measured at FVPL)15296 379 
Long-term receivables from customers12117 136 
Non-current minimum lease payments from finance lease agreements1239 78 
Long-term loans, advances, and security deposits1222 34 
Total financial assets - measured at amortized costs1,856 2,034 
Financial assets - measured at fair value through profit and loss ("FVPL")
Deferred compensation assets12137 122 
Current portion of long-term financial investments1512 33 
Derivative financial instruments153 1 
Long-term financial investments1212 28 
Total financial assets - measured at FVPL164 184 
Total financial assets3,605 3,071 
Financial liabilities - measured at amortized cost or cost(1)
Current financial liabilities
Financial debts17162 245 
Lease liabilities1670 61 
Trade payables876 833 
Total current financial liabilities - measured at amortized cost or cost1,108 1,139 
Non-current financial liabilities
Financial debts173,949 3,218 
Lease liabilities16315 280 
Total non-current financial liabilities - measured at amortized cost or cost4,264 3,498 
Total financial liabilities - measured at amortized cost or cost5,372 4,637 
Financial liabilities - measured at FVPL
Contingent consideration liabilities19/20157 243 
Derivative financial instruments177 16 
Total financial liabilities - measured at FVPL164 259 
Total financial liabilities5,536 4,896 
Net financial assets and financial liabilities(1,931)(1,825)
(1)The carrying amount is a reasonable approximation of fair value, with the exception of the Series 2026, 2029, 2030 and 2049 notes recorded in Non-current financial debts with a fair value of $3,036 million and carrying value of $2,726 million as of December 31, 2020 and a fair value of $2,049 million and carrying value of $1,979 million as of December 31, 2019. The fair value of notes was determined using level 2 inputs. The notes were valued using a quoted market price for such notes, which have low trading volumes.
Disclosure of fair value measurement of assets
The following tables summarize financial assets and liabilities measured at fair value on a recurring basis or at amortized cost or cost as of December 31, 2020 and 2019.
 December 31, 2020
($ millions)Level 1Level 2Level 3Valued at amortized cost or costTotal
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 
Total non-current financial assets137 — 40 178 355 
Current financial assets
Money market funds625 — — — 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 
Total current financial assets625 3 12 296 936 
Total financial assets at fair value and amortized cost or cost762 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)
Total 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.
December 31, 2019
($ millions)Level 1Level 2Level 3Valued at amortized cost or costTotal
Non-current financial assets
Long-term financial investments measured at FVOCI— — 31 — 31 
Long-term financial investments measured at FVPL— — 28 — 28 
Long-term receivables from customers— — — 136 136 
Deferred compensation assets(1)
122 — — — 122 
Non-current minimum lease payments from finance lease agreements— — — 78 78 
Long-term loans, advances, and security deposits— — — 34 34 
Total non-current financial assets122 — 59 248 429 
Current financial assets
Money market funds120 — — — 120 
Current portion of long-term financial investments measured at FVPL(2)
— — 33 — 33 
Current portion of long-term receivables from customers(2)
— — — 122 122 
Current portion of minimum lease payments from finance lease agreements(2)
— — — 46 46 
Other receivables, security deposits and current assets(2)
— — — 147 147 
VAT receivables(2)
— — — 64 64 
Derivative financial instruments(2)
— 1 — — 1 
Total current financial assets120 1 33 379 533 
Total financial assets at fair value and amortized cost or cost242 1 92 627 962 
Financial liabilities
Contingent consideration liabilities— — (243)— (243)
Non-current financial debt— — — (3,218)(3,218)
Current financial debt— — — (245)(245)
Derivative financial instruments— (16)— — (16)
Total financial liabilities at fair value and amortized cost— (16)(243)(3,463)(3,722)
(1)Recorded in Other non-current assets.
(2)Recorded in Other current assets
Long-term financial investments measured
at FVOCI		Financial investments
measured at FVPL
($ millions)2020201920202019
Balance as of January 131 19 61 98 
Additions7 17 2 34 
Sales— — — (7)
(Losses) recognized in consolidated statement of comprehensive loss(10)(7)— — 
Unrealized gains/(losses) in consolidated income statement— — (5)(3)
Amortization— — (34)(61)
Reclassification— 2 — — 
Balance as of December 3128 31 24 61 
Disclosure of fair value measurement of liabilities
The following tables summarize financial assets and liabilities measured at fair value on a recurring basis or at amortized cost or cost as of December 31, 2020 and 2019.
 December 31, 2020
($ millions)Level 1Level 2Level 3Valued at amortized cost or costTotal
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 
Total non-current financial assets137 — 40 178 355 
Current financial assets
Money market funds625 — — — 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 
Total current financial assets625 3 12 296 936 
Total financial assets at fair value and amortized cost or cost762 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)
Total 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.
December 31, 2019
($ millions)Level 1Level 2Level 3Valued at amortized cost or costTotal
Non-current financial assets
Long-term financial investments measured at FVOCI— — 31 — 31 
Long-term financial investments measured at FVPL— — 28 — 28 
Long-term receivables from customers— — — 136 136 
Deferred compensation assets(1)
122 — — — 122 
Non-current minimum lease payments from finance lease agreements— — — 78 78 
Long-term loans, advances, and security deposits— — — 34 34 
Total non-current financial assets122 — 59 248 429 
Current financial assets
Money market funds120 — — — 120 
Current portion of long-term financial investments measured at FVPL(2)
— — 33 — 33 
Current portion of long-term receivables from customers(2)
— — — 122 122 
Current portion of minimum lease payments from finance lease agreements(2)
— — — 46 46 
Other receivables, security deposits and current assets(2)
— — — 147 147 
VAT receivables(2)
— — — 64 64 
Derivative financial instruments(2)
— 1 — — 1 
Total current financial assets120 1 33 379 533 
Total financial assets at fair value and amortized cost or cost242 1 92 627 962 
Financial liabilities
Contingent consideration liabilities— — (243)— (243)
Non-current financial debt— — — (3,218)(3,218)
Current financial debt— — — (245)(245)
Derivative financial instruments— (16)— — (16)
Total financial liabilities at fair value and amortized cost— (16)(243)(3,463)(3,722)
(1)Recorded in Other non-current assets.
(2)Recorded in Other current assets
Contingent consideration liabilities
($ millions)20202019
Balance as of January 1(243)(162)
Additions— (135)
Accretion for passage of time(17)(21)
Adjustments for changes in assumptions63 75 
Payments40 — 
Balance as of December 31(157)(243)