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Summary of Significant Accounting Policies - Depreciation and Amortization (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Capitalized Contract Cost [Line Items] |  |  |  |
Amortization of capitalized contract costs |  |  | $ 231 | $ 108
Amortization of Intangible Assets | $ 192 | $ 244 | 610 | 623
Depreciation of property, plant and equipment | 69 | 64 | 204 | 190
Total depreciation and amortization | 352 | 359 | 1,045 | 921
Contract Cost Fulfillment |  |  |  |
Capitalized Contract Cost [Line Items] |  |  |  |
Amortization of capitalized contract costs | 34 | 14 | 82 | 20
Contract Cost, Acquisitions |  |  |  |
Capitalized Contract Cost [Line Items] |  |  |  |
Amortization of capitalized contract costs | $ 57 | $ 37 | $ 149 | $ 88

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482686/350-30-45-2 + Details
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