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Business Combinations (Narrative) (Details) - USD ($) $ in Millions |  | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Aug. 26, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Jan. 22, 2024 | Mar. 10, 2023 | Jan. 01, 2023 | Dec. 19, 2022 | Dec. 15, 2022
Business Combinations [Abstract] |  |  |  |  |  |  |  |  |
Revenue from acquisitions |  | $ 384 | $ 130 |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  | 1,615 | 409 | $ 367 |  |  |  |  |
Revenue from acquisitions |  | $ 384 | $ 130 |  |  |  |  |  |
AustinCSI |  |  |  |  |  |  |  |  |
Business Combinations [Abstract] |  |  |  |  |  |  |  |  |
Percentage of voting interests acquired |  |  |  |  |  |  |  |  | 100.00%
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Percentage of voting interests acquired |  |  |  |  |  |  |  |  | 100.00%
Utegration |  |  |  |  |  |  |  |  |
Business Combinations [Abstract] |  |  |  |  |  |  |  |  |
Percentage of voting interests acquired |  |  |  |  |  |  |  | 100.00% |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Percentage of voting interests acquired |  |  |  |  |  |  |  | 100.00% |
OneSource Virtual |  |  |  |  |  |  |  |  |
Business Combinations [Abstract] |  |  |  |  |  |  |  |  |
Percentage of voting interests acquired |  |  |  |  |  |  | 100.00% |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Percentage of voting interests acquired |  |  |  |  |  |  | 100.00% |  |
Mobica |  |  |  |  |  |  |  |  |
Business Combinations [Abstract] |  |  |  |  |  |  |  |  |
Percentage of voting interests acquired |  |  |  |  |  | 100.00% |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Percentage of voting interests acquired |  |  |  |  |  | 100.00% |  |  |
Thirdera |  |  |  |  |  |  |  |  |
Business Combinations [Abstract] |  |  |  |  |  |  |  |  |
Percentage of voting interests acquired |  |  |  |  | 100.00% |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Percentage of voting interests acquired |  |  |  |  | 100.00% |  |  |  |
Belcan |  |  |  |  |  |  |  |  |
Business Combinations [Abstract] |  |  |  |  |  |  |  |  |
Percentage of voting interests acquired | 100.00% |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Percentage of voting interests acquired | 100.00% |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired | $ 1,195 |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | 1,470,589 |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned | $ 113 |  |  |  |  |  |  |  |

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