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Restructuring - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
Restructuring - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Restructuring Cost and Reserve [Line Items]
Total pretax restructuring costs			$ 422
Restructuring Program, 2024
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related cost	$ 4,000		4,000
Estimate of cumulative pre tax costs that will be noncash	60.00%
Total pretax restructuring costs	$ 177		422
Cumulative costs since program inception	$ 613		$ 613
Restructuring Program, 2019
Restructuring Cost and Reserve [Line Items]
Total pretax restructuring costs		$ 236		$ 333

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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