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Equity - Restricted Stock Units (Details) - Restricted Stock Units ("RSUs") - Employee
$ / shares in Units, shares in Thousands, $ in Millions
 9 Months Ended
Sep. 30, 2023
USD ($)
$ / shares
shares
Share-based compensation  
Vesting terms 3 years
Number of Restricted Shares  
Non-vested at the beginning of the period (in shares) | shares 517
Granted (in shares) | shares 217
Vested (in shares) | shares (145)
Cancelled (in shares) | shares (33)
Non-vested at the end of the period (in shares) | shares 556
Weighted Average Fair Value per Share  
Non-vested at the beginning of the period (in dollars per share) | $ / shares $ 88.04
Granted (in dollars per share) | $ / shares 98.29
Vested (in dollars per share) | $ / shares 88.13
Cancelled (in dollars per share) | $ / shares 91.18
Non-vested at the end of the period (in dollars per share) | $ / shares $ 91.94
Other disclosures  
Unrecognized compensation cost | $ $ 24
Weighted-average period for amortization of unrecognized compensation cost 1 year 9 months 18 days