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STOCK BASED COMPENSATION
 6 Months Ended
Jun. 30, 2026
Share-Based Payment Arrangement [Abstract]  
STOCK BASED COMPENSATION STOCK BASED COMPENSATION
Restricted Stock Units (RSUs)
Time-based RSUs generally vest over a four-year term. Performance-based RSUs are subject to vesting requirements and are earned, in part, based on certain financial performance metrics as defined in the grant notice. Actual number of shares earned under performance-based RSUs may range from 0% to 200% of the target award. Performance-based awards granted in 2026 and 2025 are earned based on a single-year performance period subject to subsequent multi-year time-based vesting with 50% of the shares earned vesting in one year after the performance period and the remaining shares in the year after. RSUs are generally forfeited if the participant terminates service prior to vesting. The fair value of our RSUs is equal to the fair value of our common stock on the grant date.
The following tables summarize RSU activity for the six months ended June 30, 2026:
Time-based RSUs
Total Number
of Shares
Weighted-Average
Grant Date
Fair Value
Nonvested at December 31, 20251,127,651 $86.55 
Granted1,391,175 38.37 
Vested(354,089)76.40 
Forfeited(91,964)83.11 
Nonvested at June 30, 2026
2,072,773 $56.11 
Performance-based RSUs
Total Number of Shares
Weighted-Average
Grant Date
Fair Value
Nonvested at December 31, 2025178,856 $80.78 
Granted (1)
370,704 41.81 
Vested(9,834)83.31 
Forfeited(8,466)76.69 
Nonvested at June 30, 2026
531,260 $53.60 
(1)    Amount includes increase of 37,946 shares related to the finalization of the performance achievement levels for previously issued grants.
Stock Options
Stock options may be granted to eligible employees at exercise prices equal to the fair market value of our common stock on the dates of grant. Stock options generally have a maximum contractual term of 10 years. Stock options vest after 3 years, and are generally forfeited if the employee terminates service prior to vesting.
The following table summarizes stock option activity for the six months ended June 30, 2026:
Number
of Shares		Weighted
Average
Exercise
Price
Weighted
Average
Remaining
Contractual
Term
(in years)
Aggregate
Intrinsic
Value
(in millions)
Balance at December 31, 2025262,245 $76.69 9.22$— 
Forfeited(15,798)76.69 — — 
Balance at June 30, 2026
246,447 $76.69 8.73$— 
Additional Disclosures for Stock Options (in millions)
June 30, 2026
Weighted-average grant date fair value of stock options$31.65 
Stock Based Compensation
Stock based compensation expense for stock-based awards made to our employees pursuant to our equity plans were as follows:  
 Three Months Ended June 30,Six Months Ended June 30,
(in millions)2026202520262025
Cost of providing services$3 $4 $7 $8 
Sales and marketing3 3 5 5 
General and administrative10 9 18 15 
Systems development and programming costs1 2 3 3 
Total stock based compensation expense$17 $18 $33 $31 
Total stock based compensation capitalized$— $1 $1 $1 
The table below summarizes unrecognized compensation expense as of June 30, 2026 associated with the following:
Amount
(in millions)		Weighted-Average Period (in Years)
Nonvested stock options$4 1.72
Nonvested time based RSUs109 3.05
Nonvested performance based RSUs23 2.10