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Acquisitions & Divestitures - Acquisitions (Details) $ / shares in Units, € in Millions, $ in Millions	3 Months Ended		8 Months Ended
	Jun. 30, 2024 EUR (€)	Mar. 31, 2024 USD ($) acquisition	Dec. 31, 2024 USD ($) $ / shares	Dec. 31, 2023 USD ($)	Dec. 18, 2023 USD ($) € / option	Dec. 18, 2023 EUR (€) € / option
Acquisitions
Restricted cash		$ 162		$ 21
2024 Acquisitions
Acquisitions
Percentage of business acquired (as a percent)		100.00%
Aggregate acquisitions cost		$ 255
Cash consideration payable		157
Restricted cash		$ 144
2024 Acquisitions \| Software
Acquisitions
Number of acquisitions \| acquisition		2
2024 Acquisitions \| Consulting
Acquisitions
Number of acquisitions \| acquisition		1
StreamSets and webMethods \| Foreign Exchange Call Option
Acquisitions
Derivative premium					$ 49
Notional amount					$ 2,300	€ 2,130
Foreign exchange call option strike price (in euros per option) \| € / option					1.095	1.095
StreamSets and webMethods \| Forecast
Acquisitions
Aggregate acquisitions cost \| €	€ 2,130
HashiCorp \| Forecast
Acquisitions
Aggregate acquisitions cost			$ 6,400
Business acquisition, cash per share (in dollars per share) \| $ / shares			$ 35