Revenue Recognition (Narrative) (Details) $ in Millions	3 Months Ended
Mar. 31, 2026 USD ($)
Capitalized Contract Cost [Line Items]
Beginning of period contract liability recorded as customer contract revenue during period	$ 3,287
Deferred Acquisition Costs \| Minimum
Capitalized Contract Cost [Line Items]
Amortization period for deferred customer contract acquisition and fulfillment costs	3 years
Deferred Acquisition Costs \| Maximum
Capitalized Contract Cost [Line Items]
Amortization period for deferred customer contract acquisition and fulfillment costs	7 years
Deferred Fulfillment Costs \| Minimum
Capitalized Contract Cost [Line Items]
Amortization period for deferred customer contract acquisition and fulfillment costs	3 years
Deferred Fulfillment Costs \| Maximum
Capitalized Contract Cost [Line Items]
Amortization period for deferred customer contract acquisition and fulfillment costs	7 years

Amortization period of cost capitalized in obtaining or fulfilling contract with customer, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-SubTopic 40
-Topic 340
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479483/340-40-50-2

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 340
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479483/340-40-50-3

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

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