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Issued Capital and Reserves - Share Repurchase Program Authorized Amount (Details) € / shares in Units, $ / shares in Units, € in Millions, $ in Millions | 1 Months Ended | 3 Months Ended | 4 Months Ended | 5 Months Ended | 6 Months Ended
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Sep. 30, 2023 USD ($) $ / shares shares | Sep. 30, 2023 EUR (€) € / shares shares | Aug. 31, 2023 USD ($) $ / shares shares | Aug. 31, 2023 EUR (€) € / shares shares | Jul. 31, 2023 USD ($) $ / shares shares | Jul. 31, 2023 EUR (€) € / shares shares | Jun. 30, 2023 USD ($) $ / shares shares | Jun. 30, 2023 EUR (€) € / shares shares | Mar. 31, 2023 USD ($) $ / shares shares | Mar. 31, 2023 EUR (€) € / shares shares | Feb. 28, 2023 USD ($) $ / shares shares | Feb. 28, 2023 EUR (€) € / shares shares | Jan. 31, 2023 USD ($) $ / shares shares | Jan. 31, 2023 EUR (€) € / shares shares | Oct. 31, 2022 USD ($) $ / shares shares | Oct. 31, 2022 EUR (€) € / shares shares | Sep. 30, 2022 USD ($) $ / shares shares | Sep. 30, 2022 EUR (€) € / shares shares | Aug. 31, 2022 USD ($) $ / shares shares | Aug. 31, 2022 EUR (€) € / shares shares | Jul. 31, 2022 USD ($) $ / shares shares | Jul. 31, 2022 EUR (€) € / shares shares | Jun. 30, 2022 USD ($) $ / shares shares | Jun. 30, 2022 EUR (€) € / shares shares | May 31, 2022 USD ($) $ / shares shares | May 31, 2022 EUR (€) € / shares shares | Mar. 31, 2022 USD ($) | Mar. 31, 2023 USD ($) shares | Mar. 31, 2023 EUR (€) shares | Mar. 17, 2023 USD ($) | Sep. 30, 2023 USD ($) shares | Sep. 30, 2023 EUR (€) shares | Mar. 22, 2023 EUR (€) | Oct. 10, 2022 USD ($) | Oct. 31, 2022 USD ($) shares | Oct. 31, 2022 EUR (€) shares
Disclosure of reserves within equity [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share repurchase program authorized amount |  |  |  |  |  |  |  |  |  | € 500.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,500.0 |  |  |  |  |  |  |  |  |
Number of ADSs purchased (in shares) | shares | 114,513 | 114,513 | 1,261,706 | 1,261,706 | 1,738,061 | 1,738,061 | 1,532,685 | 1,532,685 | 745,196 | 745,196 | 857,620 | 857,620 | 618,355 | 618,355 | 400,483 | 400,483 | 2,280,988 | 2,280,988 | 1,666,515 | 1,666,515 | 519,320 | 519,320 | 1,160,219 | 1,160,219 | 917,988 | 917,988 |  | 2,221,171 | 2,221,171 |  | 4,646,965 | 4,646,965 |  |  | 6,945,513 | 6,945,513
Average price paid per ADS (in dollar per share and euro per share) | (per share) | $ 112.22 | € 105.07 | $ 105.07 | € 95.85 | $ 107.92 | € 97.57 | $ 108.92 | € 100.45 | $ 128.49 | € 121.08 | $ 138.05 | € 129.06 | $ 142.26 | € 131.12 | $ 136.37 | € 139.09 | $ 135.95 | € 137.66 | $ 149.08 | € 148.24 | $ 162.03 | € 159.40 | $ 140.82 | € 133.35 | $ 151.76 | € 143.99 |  |  |  |  |  |  |  |  |  |
Net amount spend | $ 12.9 | € 12.0 | $ 132.6 | € 120.9 | $ 187.6 | € 169.6 | $ 166.9 | € 154.0 | $ 95.7 | € 90.2 | $ 118.4 | € 110.7 | $ 88.0 | € 81.1 | $ 54.6 | € 55.7 | $ 310.1 | € 314.0 | $ 248.4 | € 247.0 | $ 84.1 | € 82.8 | $ 163.4 | € 154.7 | $ 139.3 | € 132.2 |  | $ 302.1 | € 282.0 |  | $ 500.0 | € 456.5 |  |  | $ 999.9 | € 986.4
Share Repurchase Program, Tranche One |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of reserves within equity [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share repurchase program authorized amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 1,000.0 | $ 1,000.0 |  |
Share Repurchase Program, Tranche Two |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of reserves within equity [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share repurchase program authorized amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500.0 |  |  | 500.0 |  |  |
Share Repurchase Program 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of reserves within equity [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share repurchase program authorized amount | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 500.0 |  |  |

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