Acquisitions, Divestitures and Other Transactions - Acquisitions (Details) $ / shares in Units, shares in Millions, $ in Millions		9 Months Ended
	Mar. 17, 2026 USD ($) $ / shares shares	Sep. 30, 2026 USD ($) acquisition	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Acquisitions
Goodwill		$ 74,916	$ 67,717	$ 60,706
Software
Acquisitions
Goodwill		59,843	52,987	47,136
Infrastructure
Acquisitions
Goodwill		4,569	4,389	4,363
Consulting
Acquisitions
Goodwill		$ 10,504	$ 10,341	$ 9,206
2026 Acquisitions
Acquisitions
Percentage of voting interest acquired		100.00%
Aggregate total purchase price		$ 12,600
2026 Acquisitions | Software
Acquisitions
Number of acquisitions | acquisition		2
2026 Acquisitions | Infrastructure
Acquisitions
Number of acquisitions | acquisition		1
2026 Acquisitions | Consulting
Acquisitions
Number of acquisitions | acquisition		1
Confluent, Inc. (Confluent)
Acquisitions
Aggregate total purchase price	$ 11,602
Business acquisition, cash per share (in dollars per share) | $ / shares	$ 31
Cash consideration	$ 11,537
Goodwill		$ 7,247
Estimated percent of goodwill deductible for tax purposes	1.00%
Amortization Life (in years)	9 years 8 months 12 days
Stock awards issued (in shares) | shares	3.0
Stock awards fair value	$ 665
Confluent, Inc. (Confluent) | Common Stock
Acquisitions
Cash consideration	11,268
Confluent, Inc. (Confluent) | Software
Acquisitions
Goodwill	7,158
Confluent, Inc. (Confluent) | Consulting
Acquisitions
Goodwill	$ 89
Other 2026 Acquisitions
Acquisitions
Goodwill		$ 319
Estimated percent of goodwill deductible for tax purposes		59.00%
Amortization Life (in years)		6 years 9 months 18 days
Other 2026 Acquisitions | Software
Acquisitions
Goodwill		$ 16
Other 2026 Acquisitions | Infrastructure
Acquisitions
Goodwill		189
Other 2026 Acquisitions | Consulting
Acquisitions
Goodwill		$ 114