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Equity - Restricted Stock Units (Details) - Restricted Stock Units ("RSUs") - Employee
$ / shares in Units, shares in Thousands, $ in Millions
 6 Months Ended
Jun. 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 517,000
Granted (in shares) | shares 213,000
Vested (in shares) | shares (138,000)
Cancelled (in shares) | shares (28,000)
Non-vested at the end of the period (in shares) | shares 564,000
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 98.46
Vested (in dollars per share) | $ / shares 88.43
Cancelled (in dollars per share) | $ / shares 90.88
Non-vested at the end of the period (in dollars per share) | $ / shares $ 91.80
Other disclosures  
Unrecognized compensation cost | $ $ 29
Weighted-average period for amortization of unrecognized compensation cost 2 years