Revenue Recognition - Contract Balances (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Schedule of Contract Assets and Liabilities [Line Items]
Capitalized contract costs	$ 1,680	$ 1,220
Accounts receivable, net	4,065	3,488
Unbilled revenues (included within Accounts receivable, net - Contracts with customers)	1,747	1,548
Deferred revenue	1,643	1,573
Amortization of capitalized contract costs	510	332	$ 168
Deferred revenue from contract with customers	1,600	1,500
Accounts receivable, net - Contracts with customers
Schedule of Contract Assets and Liabilities [Line Items]
Accounts receivable, net	3,924	3,393
Accounts receivable, net - Accounted for under topics other than ASC 606
Schedule of Contract Assets and Liabilities [Line Items]
Accounts receivable, net	135	90
Accounts receivable, net - Affiliate
Schedule of Contract Assets and Liabilities [Line Items]
Accounts receivable, net	$ 6	$ 5