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Revenue Recognition - Contract Assets and Liabilities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Schedule Of Contract Assets And Liabilities [Line Items]
Deferred customer acquisition costs	$ 114		$ 114		$ 133
Total accounts receivable, net	3,862		3,862		3,245
Unbilled revenues (included within Accounts receivable, net - Contracts with customers)	1,503		1,503		1,574
Deferred revenues	191		191		227
Deferred revenue from contract with customers			184		224
Revenue recognized	106	$ 98	117	$ 23
Accounts receivable, net - Contracts with customers
Schedule Of Contract Assets And Liabilities [Line Items]
Total accounts receivable, net	3,609		3,609		3,057
Accounts receivable, net - Derivative instruments and leases
Schedule Of Contract Assets And Liabilities [Line Items]
Total accounts receivable, net	249		249		182
Accounts receivable, net - Affiliate
Schedule Of Contract Assets And Liabilities [Line Items]
Total accounts receivable, net	$ 4		$ 4		$ 6

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

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Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

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