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Geographic Regions
 12 Months Ended
Dec. 31, 2019
Geographic Regions Disclosure [Abstract]  
Geographic Regions Geographic Regions
Credco is principally engaged in the business of financing the Card Member receivables and loans of its affiliates. Management makes operating decisions and assesses performance based on an ongoing review of these financing activities, which constitute Credco’s only operating segment for financial reporting purposes.
The following table presents Credco’s revenues and pretax income in different geographic regions based, in part, upon internal allocations, which necessarily involve management’s judgment:

(Millions)201920182017
Revenues
United States$1,133  $1,033  $779  
Outside the United States482  428  308  
Consolidated$1,615  $1,461  $1,087  
Pretax income
United States$61  $28  $9  
Outside the United States451  388  266  
Consolidated$512  $416  $275