v3.26.1
Financial instruments (Tables)
 6 Months Ended
Jun. 30, 2026
Financial Instruments [Abstract]  
Disclosure of fair value measurement of assets
The below table summarizes financial assets and liabilities measured at fair value on a recurring basis as of June 30, 2026 and December 31, 2025.
June 30, 2026
December 31, 2025
($ millions)Level 1Level 2Level 3TotalLevel 1Level 2Level 3Total
Non-current financial assets
Long-term financial investments measured at FVOCI
80 — 177 257 132 — 196 328 
Long-term financial investments measured at FVPL— — 23 23 — — 4 4 
Deferred compensation assets(1)
212 — — 212 202 — — 202 
Non-current financial assets at fair value292 — 200 492 334 — 200 534 
Current financial assets
Money market funds319 — — 319 562 — — 562 
Current portion of long-term financial investments measured at FVPL(2)
— — 1 1 — — 1 1 
Derivative financial instruments(2)
— 15 — 15 — 5 — 5 
Current financial assets at fair value319 15 1 335 562 5 1 568 
Financial assets at fair value611 15 201 827 896 5 201 1,102 
Non-current financial liabilities
Non-current contingent consideration liabilities— — (64)(64)— — (160)(160)
Non-current financial liabilities at fair value— — (64)(64)— — (160)(160)
Current financial liabilities
Current contingent consideration liabilities— — (9)(9)— — (9)(9)
Derivative financial instruments
— (3)— (3)— (6)— (6)
Current financial liabilities at fair value— (3)(9)(12)— (6)(9)(15)
Financial liabilities at fair value— (3)(73)(76)— (6)(169)(175)
(1)    Recorded in Other non-current assets.
(2)    Recorded in Other current assets.
Financial assets
Long-term financial investments measured
at FVOCI		Financial investments
measured at FVPL
($ millions)2026202520262025
Balance as of January 1196 201 5 2 
Additions37 15 21 2 
Net losses recognized in Consolidated Statement of Comprehensive (Loss)/Income(56)(34)— — 
Amortization— — (2)(1)
Settlements— (11)— — 
Balance as of June 30177 171 24 3 
Disclosure of fair value measurement of liabilities
The below table summarizes financial assets and liabilities measured at fair value on a recurring basis as of June 30, 2026 and December 31, 2025.
June 30, 2026
December 31, 2025
($ millions)Level 1Level 2Level 3TotalLevel 1Level 2Level 3Total
Non-current financial assets
Long-term financial investments measured at FVOCI
80 — 177 257 132 — 196 328 
Long-term financial investments measured at FVPL— — 23 23 — — 4 4 
Deferred compensation assets(1)
212 — — 212 202 — — 202 
Non-current financial assets at fair value292 — 200 492 334 — 200 534 
Current financial assets
Money market funds319 — — 319 562 — — 562 
Current portion of long-term financial investments measured at FVPL(2)
— — 1 1 — — 1 1 
Derivative financial instruments(2)
— 15 — 15 — 5 — 5 
Current financial assets at fair value319 15 1 335 562 5 1 568 
Financial assets at fair value611 15 201 827 896 5 201 1,102 
Non-current financial liabilities
Non-current contingent consideration liabilities— — (64)(64)— — (160)(160)
Non-current financial liabilities at fair value— — (64)(64)— — (160)(160)
Current financial liabilities
Current contingent consideration liabilities— — (9)(9)— — (9)(9)
Derivative financial instruments
— (3)— (3)— (6)— (6)
Current financial liabilities at fair value— (3)(9)(12)— (6)(9)(15)
Financial liabilities at fair value— (3)(73)(76)— (6)(169)(175)
(1)    Recorded in Other non-current assets.
(2)    Recorded in Other current assets.
Financial liabilities
Contingent consideration liabilities
($ millions)20262025
Balance as of January 1(169)(96)
Additions— (9)
Accretion for passage of time(7)(5)
Adjustments for changes in assumptions103 — 
Balance as of June 30(73)(110)
Disclosure of net value of unsettled positions for derivative forward contracts and swaps
The below table summarizes the net value of unsettled positions for currency derivatives contracts including swaps, forwards and options as of June 30, 2026 and December 31, 2025.
($ millions)June 30, 2026December 31, 2025
Unrealized gains in Other current assets
15 5 
Unrealized losses in Current financial debts
(3)(6)
Net value of unsettled positions for derivatives contracts
12 (1)