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Revenues (Tables) | 12 Months Ended
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Dec. 31, 2024
Revenues [Abstract] |
Disaggregation of Revenue | Disaggregation of Revenues The tables below present disaggregated revenues from contracts with clients by client location, service line and contract type for each of our reportable business segments. We believe this disaggregation best depicts how the nature, amount, timing and uncertainty of revenues and cash flows are affected by industry, market and other economic factors. Our consulting and technology services include consulting, application development, systems integration, quality engineering and assurance services as well as software solutions and related services while our outsourcing services include application maintenance, infrastructure and security as well as business process services. Revenues are attributed to geographic regions based upon client location, which is the client's billing address. Substantially all revenues in the North America region relate to clients in the United States.
|  | Year Ended December 31, 2024
(in millions) |  | HS |  | FS |  | P&R |  | CMT |  | Total
Revenues |  |  |  |  |  |  |  |  |  |
Geography: |  |  |  |  |  |  |  |  |  |
North America |  | $ | 5,072 |  |  | $ | 4,075 |  |  | $ | 3,272 |  |  | $ | 2,279 |  |  | $ | 14,698 |
United Kingdom |  | 186 |  |  | 572 |  |  | 558 |  |  | 511 |  |  | 1,827 |
Continental Europe |  | 559 |  |  | 613 |  |  | 605 |  |  | 155 |  |  | 1,932 |
Europe - Total |  | 745 |  |  | 1,185 |  |  | 1,163 |  |  | 666 |  |  | 3,759 |
Rest of World |  | 115 |  |  | 493 |  |  | 347 |  |  | 324 |  |  | 1,279 |
Total |  | $ | 5,932 |  |  | $ | 5,753 |  |  | $ | 4,782 |  |  | $ | 3,269 |  |  | $ | 19,736 |
Service line: |  |  |  |  |  |  |  |  |  |
Consulting and technology services |  | $ | 3,456 |  |  | $ | 4,022 |  |  | $ | 3,193 |  |  | $ | 1,821 |  |  | $ | 12,492 |
Outsourcing services |  | 2,476 |  |  | 1,731 |  |  | 1,589 |  |  | 1,448 |  |  | 7,244 |
Total |  | $ | 5,932 |  |  | $ | 5,753 |  |  | $ | 4,782 |  |  | $ | 3,269 |  |  | $ | 19,736 |
Type of contract: |  |  |  |  |  |  |  |  |  |
Time and materials |  | $ | 1,968 |  |  | $ | 3,188 |  |  | $ | 1,995 |  |  | $ | 1,775 |  |  | $ | 8,926 |
Fixed-price |  | 2,878 |  |  | 2,384 |  |  | 2,442 |  |  | 1,324 |  |  | 9,028 |
Transaction or volume-based |  | 1,086 |  |  | 181 |  |  | 345 |  |  | 170 |  |  | 1,782 |
Total |  | $ | 5,932 |  |  | $ | 5,753 |  |  | $ | 4,782 |  |  | $ | 3,269 |  |  | $ | 19,736 |
|  | Year Ended December 31, 2023
(in millions) |  | HS |  | FS |  | P&R |  | CMT |  | Total
Revenues |  |  |  |  |  |  |  |  |  |
Geography: |  |  |  |  |  |  |  |  |  |
North America |  | $ | 4,865 |  |  | $ | 4,091 |  |  | $ | 3,102 |  |  | $ | 2,205 |  |  | $ | 14,263 |
United Kingdom |  | 167 |  |  | 613 |  |  | 534 |  |  | 571 |  |  | 1,885 |
Continental Europe |  | 533 |  |  | 605 |  |  | 612 |  |  | 159 |  |  | 1,909 |
Europe - Total |  | 700 |  |  | 1,218 |  |  | 1,146 |  |  | 730 |  |  | 3,794 |
Rest of World |  | 109 |  |  | 500 |  |  | 380 |  |  | 307 |  |  | 1,296 |
Total |  | $ | 5,674 |  |  | $ | 5,809 |  |  | $ | 4,628 |  |  | $ | 3,242 |  |  | $ | 19,353 |
Service line: |  |  |  |  |  |  |  |  |  |
Consulting and technology services |  | $ | 3,238 |  |  | $ | 3,965 |  |  | $ | 3,010 |  |  | $ | 1,751 |  |  | $ | 11,964 |
Outsourcing services |  | 2,436 |  |  | 1,844 |  |  | 1,618 |  |  | 1,491 |  |  | 7,389 |
Total |  | $ | 5,674 |  |  | $ | 5,809 |  |  | $ | 4,628 |  |  | $ | 3,242 |  |  | $ | 19,353 |
Type of contract: |  |  |  |  |  |  |  |  |  |
Time and materials |  | $ | 2,004 |  |  | $ | 3,215 |  |  | $ | 1,837 |  |  | $ | 1,832 |  |  | $ | 8,888 |
Fixed-price |  | 2,600 |  |  | 2,369 |  |  | 2,435 |  |  | 1,260 |  |  | 8,664 |
Transaction or volume-based |  | 1,070 |  |  | 225 |  |  | 356 |  |  | 150 |  |  | 1,801 |
Total |  | $ | 5,674 |  |  | $ | 5,809 |  |  | $ | 4,628 |  |  | $ | 3,242 |  |  | $ | 19,353 |
|  | Year Ended December 31, 2022
(in millions) |  | HS |  | FS |  | P&R |  | CMT |  | Total
Revenues |  |  |  |  |  |  |  |  |  |
Geography: |  |  |  |  |  |  |  |  |  |
North America |  | $ | 4,853 |  |  | $ | 4,312 |  |  | $ | 3,078 |  |  | $ | 2,192 |  |  | $ | 14,435 |
United Kingdom |  | 171 |  |  | 599 |  |  | 521 |  |  | 519 |  |  | 1,810 |
Continental Europe |  | 483 |  |  | 590 |  |  | 585 |  |  | 137 |  |  | 1,795 |
Europe - Total |  | 654 |  |  | 1,189 |  |  | 1,106 |  |  | 656 |  |  | 3,605 |
Rest of World |  | 124 |  |  | 571 |  |  | 382 |  |  | 311 |  |  | 1,388 |
Total |  | $ | 5,631 |  |  | $ | 6,072 |  |  | $ | 4,566 |  |  | $ | 3,159 |  |  | $ | 19,428 |
Service line: |  |  |  |  |  |  |  |  |  |
Consulting and technology services |  | $ | 3,226 |  |  | $ | 4,207 |  |  | $ | 3,017 |  |  | $ | 1,775 |  |  | $ | 12,225 |
Outsourcing services |  | 2,405 |  |  | 1,865 |  |  | 1,549 |  |  | 1,384 |  |  | 7,203 |
Total |  | $ | 5,631 |  |  | $ | 6,072 |  |  | $ | 4,566 |  |  | $ | 3,159 |  |  | $ | 19,428 |
Type of contract: |  |  |  |  |  |  |  |  |  |
Time and materials |  | $ | 2,010 |  |  | $ | 3,516 |  |  | $ | 1,856 |  |  | $ | 1,797 |  |  | $ | 9,179 |
Fixed-price |  | 2,471 |  |  | 2,265 |  |  | 2,357 |  |  | 1,206 |  |  | 8,299 |
Transaction or volume-based |  | 1,150 |  |  | 291 |  |  | 353 |  |  | 156 |  |  | 1,950 |
Total |  | $ | 5,631 |  |  | $ | 6,072 |  |  | $ | 4,566 |  |  | $ | 3,159 |  |  | $ | 19,428 |
Capitalized Contract Cost | Costs to Fulfill The following table shows significant movements in the capitalized costs to fulfill:
(in millions) |  | 2024 |  | 2023
Beginning balance |  | $ | 245 |  |  | $ | 265 |
Costs capitalized |  | 53 |  |  | 67 |
Amortization expense |  | (89) |  |  | (87) |
Ending balance |  | $ | 209 |  |  | $ | 245 |
Costs to obtain contracts were immaterial for the periods disclosed.
Contract with Customer, Asset and Liability | The table below shows significant movements in contract assets (current and noncurrent):
(in millions) |  | 2024 |  | 2023
Beginning balance |  | $ | 316 |  |  | $ | 326 |
Revenues recognized during the period but not billed |  | 358 |  |  | 308 |
Amounts reclassified to trade accounts receivable |  | (288) |  |  | (327) |
Amounts acquired in business combinations |  | — |  |  | 9 |
Ending balance |  | $ | 386 |  |  | $ | 316 |
The table below shows significant movements in the deferred revenue balances (current and noncurrent):
(in millions) |  | 2024 |  | 2023
Beginning balance |  | $ | 427 |  |  | $ | 417 |
Amounts billed but not recognized as revenues |  | 421 |  |  | 406 |
Revenues recognized related to the beginning balance of deferred revenue |  | (380) |  |  | (409) |
Amounts acquired in business combinations |  | 12 |  |  | 13 |
Ending balance |  | $ | 480 |  |  | $ | 427 |
Reinsurance Recoverable, Allowance for Credit Loss | The following table presents the activity in the allowance for credit losses for the trade accounts receivable:
(in millions) |  | 2024 |  | 2023 |  | 2022
Beginning balance |  | $ | 32 |  |  | $ | 43 |  |  | $ | 50 |
Credit loss expense (1) |  | 12 |  |  | 12 |  |  | 9 |
Write-offs charged against the allowance |  | (18) |  |  | (23) |  |  | (16) |
Ending balance |  | $ | 26 |  |  | $ | 32 |  |  | $ | 43 |
(1)Reported in "Selling, general and administrative expenses" in our consolidated statements of operations.

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