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Leases - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Lessee, Lease, Description [Line Items] |  |  |
Right-of-use assets obtained in exchange for lease liabilities | $ 98 | $ 221 | $ 40
Three Large Managed Service Contracts |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Right-of-use assets obtained in exchange for lease liabilities | $ 66 |  |
Radio Tower Sites |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Right-of-use assets obtained in exchange for lease liabilities |  | 150 |
TETRA Ireland Communications Limited |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Additional leases acquired |  | $ 34 |

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- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 53 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479589/842-20-55-53 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (g)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-4 + Details
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