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Share-Based Payments - LTI Stock Option Plan Executives - Additional Information (Detail) Unit_pure in Thousands, shares in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 USD ($) shares | Dec. 31, 2022 USD ($) shares | Dec. 31, 2021 shares
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Issued ordinary and restricted shares at 1 January, net of treasury shares | shares | 1,984.0 | 1,981.0 | 1,972.0
Long Term Restricted Stock Unit Program Three [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share based payment vesting period | 5 years |  |
Annual LTI Plans [member] | Long Term Incentive Restricted Stock Unit [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Description of share to acquire by holder | one |  |
Annual LTI Plans [member] | Long Term Incentive Restricted Stock Unit [member] | Executive [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation number of shares issued | 2,900 | 3,900 |
Share-based compensation grant date fair value | $ 183 | $ 228 |
Annual LTI Plans [member] | Long Term Incentive Restricted Stock Unit [member] | Board of Director [Member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Issued ordinary and restricted shares at 1 January, net of treasury shares | shares | 0.1 | 0.5 |
Annual LTI Plans [member] | Long Term Incentive Performance Share Units [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation grant date fair value | $ 39 | $ 39 |
Annual LTI Plans [member] | Long Term Incentive Performance Share Units [member] | Executive [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation number of shares issued | 500 | 500 |
Annual LTI Plans [member] | Performance share units (PSUs) [member] | Board of Director [Member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation number of shares issued | 33 | 100 |
Other Recurring LTI RSU Plans [member] | Long Term Restricted Stock Unit Program One [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation number of shares issued | 600 | 700 |
Fair value of options granted | $ 35 | $ 44 |
Other Recurring LTI RSU Plans [member] | Long Term Restricted Stock Unit Program Three [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation number of shares issued |  | 100 |
Share-based compensation grant date fair value |  | $ 7 |

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