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Software Development
 6 Months Ended
Jun. 30, 2022
Software Development Costs [Abstract]  
Software Development
2. Software Development

Our total capitalized software development costs of $892 million and $660 million as of June 30, 2022 and December 31, 2021, respectively, primarily relate to internal development costs.

Amortization of capitalized software development costs was as follows (amounts in millions):

 For the Three Months Ended June 30,For the Six Months Ended June 30,
 2022202120222021
Amortization of capitalized software development costs$60 $87 $139 $199