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Amortizable Intangible Assets - Amortizable Intangible Assets (Details) - USD ($) $ in Millions | Sep. 30, 2024 | Dec. 31, 2023
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Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying value |  | $ 3,268 | $ 3,172
Accumulated amortization |  | (1,686) | (1,551)
Net carrying value |  | 1,582 | 1,621
Foreign currency translation, Gross carrying value |  | 39 | 34
Foreign currency translation, Accumulated amortization |  | (5) | (2)
Foreign currency translation, Net carrying value |  | 34 | 32
Purchased Customer Accounts and Other |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying value, excluding foreign currency translation |  | 3,229 | 3,138
Accumulated amortization, excluding foreign currency translation |  | (1,681) | (1,549)
Net carrying value, excluding foreign currency translation |  | $ 1,548 | $ 1,589
Weighted average life (years) | [1] | 15 years | 15 years
[1] | Weighted average life calculated as of the date of acquisition.

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