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Restructuring Costs - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		39 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 0	$ 3	$ 0	$ 21
Transaction and transformation	$ 2	97	$ 2	222
Transformation Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, description			In the fourth quarter of 2024, the Company concluded a three-year ‘Transformation program’ designed to enhance operations, optimize technology and align its real estate footprint to its new ways of working.
Restructuring, Cost incurred					$ 1,245
Restructuring costs		3		21
Transaction and transformation		$ 86		$ 205
Transformation Program [Member] | Cumulative Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Cost incurred					1,115
Transformation Program [Member] | Capital Expenditures [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Cost incurred					$ 130

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- Definition

Description of a specific restructuring plan and related activities including the facts and circumstances leading to the restructuring or decision to exit an activity, and the expected completion date. This concept and related items would be utilized for each plan if multiple exit plans have been implemented in the period.

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Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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