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Financial Instruments - Narrative (Details) € in Millions, £ in Millions, $ in Millions |  |  | 1 Months Ended | 3 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 08, 2024 USD ($) | Mar. 07, 2024 USD ($) | Mar. 31, 2024 USD ($) | Mar. 31, 2025 USD ($) | Mar. 31, 2024 USD ($) | Mar. 31, 2025 GBP (£) | Mar. 31, 2025 EUR (€) | Dec. 31, 2024 USD ($) | Dec. 31, 2024 GBP (£) | Dec. 31, 2024 EUR (€) | Mar. 31, 2024 GBP (£) | Sep. 30, 2023 EUR (€) | Jun. 30, 2023 GBP (£)
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Other investing activities, net |  |  |  | $ 3 | $ 2 |  |  |  |  |  |  |  |
Other financing activities, net |  |  |  | 33 | 43 |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  | 0 | 174 |  |  |  |  |  |  |  |
Settlement of net investment hedge cross-currency interest rate swaps |  |  |  | 0 | (5) |  |  |  |  |  |  |  |
Worldpay Sale |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative fair value, consideration contingent |  |  |  | 1,000 |  |  |  |  |  |  |  |  |
Gain for the change in fair value |  |  |  | 0 | 0 |  |  |  |  |  |  |  |
Worldpay Sale | Other Noncurrent Assets |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative asset fair value |  |  |  | 108 |  |  |  | $ 108 |  |  |  |  |
Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt | $ 174 | $ 174 |  |  |  |  |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative liability fair value |  |  |  |  |  |  |  | 11 |  |  |  |  |
Derivative asset fair value |  |  |  | 7 |  |  |  |  |  |  |  |  |
Other financing activities, net |  |  |  | 0 | 13 |  |  |  |  |  |  |  |
Net Investment Hedges | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount | € |  |  |  |  |  |  | € 438 |  |  | € 375 |  |  |
Net Investment Hedges | Senior Notes | Senior Euro Notes Maturing 2024 To 2025 and ECP Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount | € |  |  |  |  |  |  | 188 |  |  | 250 |  |  |
Net Investment Hedges | Senior Notes | Sterling Senior Notes Due In 2025 |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount | € |  |  |  |  |  |  | 100 |  |  | 100 |  |  |
Interest Rate Swap | Fair Value Hedging |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  | 1,854 |  | £ 925 |  | 1,854 | £ 925 |  |  |  |
Unamortized fair value basis adjustments |  |  | $ 316 |  | 316 |  |  |  |  |  |  |  |
Derivative liability fair value |  |  |  | 219 |  |  |  | 228 |  |  |  |  |
Fair value of interest expense using amortization approach |  |  |  | 9 | 19 |  |  |  |  |  |  |  |
Net offset by changes in spot foreign currency exchange rates |  |  |  | (18) | 4 |  |  |  |  |  |  |  |
Other investing activities, net |  |  |  | 22 | 22 |  |  |  |  |  |  |  |
Interest Rate Swap | Fair Value Hedging | New Offsetting Variable-to-Fixed Interest Rate Swaps |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  | 1,854 |  | £ 925 |  | 1,854 | £ 925 |  |  |  |
Derivative liability fair value |  |  |  | 564 |  |  |  | 595 |  |  |  |  |
Derivative asset fair value |  |  |  | 6 |  |  |  | 33 |  |  |  |  |
Interest Rate Swap | Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative liability fair value |  |  |  | 89 |  |  |  | 12 |  |  |  |  |
Derivative asset fair value |  |  |  | 29 |  |  |  | 128 |  |  |  |  |
Currency Swap | Fair Value Hedging |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  |  |  |  | £ 170 | € 3,375 | £ 925
Fair value of interest expense using amortization approach |  |  |  | 12 | 12 |  |  |  |  |  |  |  |
Net offset by changes in spot foreign currency exchange rates |  |  |  | 153 | (87) |  |  |  |  |  |  |  |
Derivative asset fair value |  |  |  | 13 |  |  |  | 4 |  |  |  |  |
Derivative liability fair value |  |  |  | (8) |  |  |  | $ (84) |  |  |  |  |
Other comprehensive earnings (loss) for the changes in swap fair values attributable to excluded components |  |  |  | $ (68) | $ (5) |  |  |  |  |  |  |  |
Other financing activities, net |  |  | 33 |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  | $ 19 |  |  |  |  |  |  |  |  |  |
Currency Swap | Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount | € |  |  |  |  |  |  | € 5,045 |  |  | € 5,045 |  |  |

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