The average price of a hedging instrument. [Refer: Hedging instruments [domain]]

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The amount of a hedging instrument, recognised as a liability. [Refer: Hedging instruments [domain]]

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The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

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The amount of a hedging instrument, recognized as assets (liabilities).

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The increase (decrease) in the fair value as a result of an decrease in the relevant risk variable that was reasonably possible at the end of the reporting period.

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The increase (decrease) in other comprehensive income as a result of a decrease in the relevant risk variable that was reasonably possible at the end of the reporting period.

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Financial instruments and risk management - Cash flow hedge relationships and currency risk (Details) € in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($) $ / $ $ / $ ₩ / $ € / $ ¥ / $	Dec. 31, 2024 USD ($) $ / $ $ / $ € / £ € / SFr $ / £ € / $ ¥ / $	Dec. 31, 2025 EUR (€) $ / $ $ / $ € / $ ₩ / $ ¥ / $	Dec. 31, 2024 EUR (€) $ / $ $ / $ € / £ € / SFr $ / £ € / $ ¥ / $
Forward foreign exchange contracts
Risk management
Notional amount	$ 1,400	$ 2,400
Currency risk \| United States of America, Dollars
Risk management
Percentage of decrease in risk variable used for sensitivity analysis	10.00%	10.00%	10.00%	10.00%
Percentage of increase in risk variable used for sensitivity analysis	10.00%	10.00%	10.00%	10.00%
Increase / (decrease) in income statement	$ 1
Increase / (decrease) in income statement	(1)
Increase / (decrease) in OCI	(46)	$ (40)
Increase / (decrease) in OCI	46	40
Increase (decrease) in net borrowings that would result from decreased currency value, per sensitivity analysis	$ 45	$ 40
Currency risk \| Forward foreign exchange contracts \| United States of America, Dollars
Risk management
Percentage of decrease in risk variable used for sensitivity analysis	10.00%	10.00%	10.00%	10.00%
Increase (decrease) in fair value that would result from decreased currency value, per sensitivity analysis	$ 144	$ 48
Percentage of increase in risk variable used for sensitivity analysis	10.00%	10.00%	10.00%	10.00%
Increase / (decrease) in income statement	$ (6)	$ (7)
Increase / (decrease) in income statement	6	7
Increase / (decrease) in OCI	(138)	(41)
Increase / (decrease) in OCI	129	41
Currency risk \| Cash flow hedges
Risk management
Notional amount	1,428	2,415
Carrying value assets/ (liabilities)	$ 18	$ 30
Currency risk \| Cash flow hedges \| Sell Euros \| In one year
Risk management
Average strike \| € / $	1.17		1.17
Notional amount	$ 390
Carrying value assets/ (liabilities)	$ (4)
Currency risk \| Cash flow hedges \| Sell Euros \| 1 - 3 years
Risk management
Average strike \| € / $	1.2		1.2
Notional amount	$ 390
Carrying value assets/ (liabilities)	$ (1)
Currency risk \| Cash flow hedges \| Sell Australian Dollars \| In one year
Risk management
Average strike \| $ / $	0.65		0.65
Notional amount	$ 110
Carrying value assets/ (liabilities)	$ (3)
Currency risk \| Cash flow hedges \| Sell Australian Dollars \| 1 - 3 years
Risk management
Average strike \| $ / $	0.65		0.65
Notional amount	$ 110
Carrying value assets/ (liabilities)	$ (1)
Currency risk \| Cash flow hedges \| Sell Canadian Dollars \| In one year
Risk management
Average strike \| $ / $	1.36		1.36
Notional amount	$ 53
Currency risk \| Cash flow hedges \| Sell Canadian Dollars \| 1 - 3 years
Risk management
Average strike \| $ / $	1.35		1.35
Notional amount	$ 53
Currency risk \| Cash flow hedges \| Sell Japanese Yen \| In one year
Risk management
Average strike \| ¥ / $	140		140
Notional amount	$ 131
Carrying value assets/ (liabilities)	$ 14
Currency risk \| Cash flow hedges \| Sell Japanese Yen \| 1 - 3 years
Risk management
Average strike \| ¥ / $	140		140
Notional amount	$ 131
Carrying value assets/ (liabilities)	$ 10
Currency risk \| Cash flow hedges \| Sell South Korean Won \| In one year
Risk management
Average strike \| ₩ / $	1,372		1,372
Notional amount	$ 31
Carrying value assets/ (liabilities)	$ 2
Currency risk \| Cash flow hedges \| Sell South Korean Won \| 1 - 3 years
Risk management
Average strike \| ₩ / $	1,366		1,366
Notional amount	$ 29
Carrying value assets/ (liabilities)	1
Currency risk \| Cash flow hedges \| Sell Euros (net) for US Dollars
Risk management
Average strike \| € / $		1.1		1.1
Notional amount		$ 570
Carrying value assets/ (liabilities)		$ 10
Currency risk \| Cash flow hedges \| Buy Pound sterling (net) for US Dollars
Risk management
Average strike \| $ / £		1.24		1.24
Notional amount		$ 438
Currency risk \| Cash flow hedges \| Sell Euros (net) for Pound sterling
Risk management
Average strike \| € / £		0.85		0.85
Notional amount		$ 335
Carrying value assets/ (liabilities)		$ 2
Currency risk \| Cash flow hedges \| Sell Singapore Dollars (net) for US Dollars
Risk management
Average strike \| $ / $		1.32		1.32
Notional amount		$ 174
Carrying value assets/ (liabilities)		$ 4
Currency risk \| Cash flow hedges \| Buy Swiss Franc (net) for Euros
Risk management
Average strike \| € / SFr		0.93		0.93
Notional amount		$ 134
Currency risk \| Cash flow hedges \| Sell Australian Dollars (net) for Singapore Dollars
Risk management
Average strike \| $ / $		0.87		0.87
Notional amount		$ 122
Carrying value assets/ (liabilities)		$ 3
Currency risk \| Cash flow hedges \| Sell Japanese Yen (net) for Singapore Dollars
Risk management
Average strike \| ¥ / $		110		110
Notional amount		$ 101
Carrying value assets/ (liabilities)		3
Currency risk \| Cash flow hedges \| Other currencies
Risk management
Notional amount		541
Carrying value assets/ (liabilities)		8
Currency risk \| Net investment hedge \| EUR corporate bond
Risk management
Carrying Amount Liabilities	$ (588)	$ (520)	€ (500)	€ (500)
Currency risk \| Net investment hedge \| Euro corporate bond \| United States of America, Dollars
Risk management
Carrying Amount Liabilities \| €			€ (500)