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Revenue from Contracts with Customers - Schedule of Contract Assets Rollforward (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Capitalized Cost To Fulfill Customer Contracts |  |  |  |
Change in Capitalized Contract Costs |  |  |  |
Balance at beginning of period | $ 269 | $ 257 | $ 370 | $ 355
Additions | 386 | 355 | 766 | 717
Amortization | (390) | (373) | (868) | (835)
Impairment | 0 | 0 | 0 | 0
Foreign currency translation and other | (1) | 3 | (4) | 5
Balance at end of period | 264 | 242 | 264 | 242
Capitalized Cost To Obtain Customer Contracts |  |  |  |
Change in Capitalized Contract Costs |  |  |  |
Balance at beginning of period | 194 | 183 | 195 | 185
Additions | 18 | 13 | 32 | 23
Amortization | (14) | (13) | (27) | (25)
Impairment | 0 | 0 | 0 | 0
Foreign currency translation and other | (2) | 3 | (4) | 3
Balance at end of period | $ 196 | $ 186 | $ 196 | $ 186

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- Definition Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479483/340-40-50-3 + Details
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- Definition Amount of impairment loss for asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479483/340-40-50-3 + Details
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