Annual report [Section 13 and 15(d), not S-K Item 405]

Goodwill and Other Intangible Assets, Net (Other Intangible Assets) (Details)

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Goodwill and Other Intangible Assets, Net (Other Intangible Assets) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Finite-lived and Indefinite-lived Intangible Assets by Major Class [Line Items]      
Indefinite-Lived Trade Names $ 2,120 $ 2,698  
Intangible Assets, Gross (Excluding Goodwill) 6,039 6,584  
Other Intangible Assets (Excluding Goodwill), Accumulated Amortization 3,580 3,473  
Other intangible assets, net (note 6) 2,459 3,111  
Amortization 274 282 $ 290
Purchased and internally developed software      
Finite-lived and Indefinite-lived Intangible Assets by Major Class [Line Items]      
Capitalized Computer Software, Gross 1,094 1,052  
Capitalized Computer Software, Accumulated Amortization 852 784  
Capitalized Computer Software, Net $ 242 268  
Finite-Lived Intangible Asset, Useful Life 2 years 2 months 12 days    
Customer Relationships [Member]      
Finite-lived and Indefinite-lived Intangible Assets by Major Class [Line Items]      
Finite-Lived Customer Relationships, Gross $ 2,816 2,825  
Finite-Lived Customer Relationships, Accumulated Amortization 2,722 2,684  
Finite lived customer relationships, net $ 94 141  
Finite-Lived Intangible Asset, Useful Life 2 years    
Debt [Member]      
Finite-lived and Indefinite-lived Intangible Assets by Major Class [Line Items]      
Debt Issuance Costs, Gross $ 9 9  
Accumulated Amortization, Debt Issuance Costs 6 5  
Debt Issuance Costs, Net $ 3 4  
Finite-Lived Intangible Asset, Useful Life 2 years 1 month 6 days    
Finite-Lived Intangible Assets [Member]      
Finite-lived and Indefinite-lived Intangible Assets by Major Class [Line Items]      
Amortization $ 194 $ 191 $ 174