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BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Gain on Sale of Subsidiary (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations - South Africa Fiber $ in Millions, R in Billions		3 Months Ended
	Mar. 06, 2025 USD ($)	Mar. 31, 2025 USD ($)	Mar. 06, 2025 ZAR (R)	Mar. 06, 2025 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds received at closing			R 2.5	$ 137.7
Net assets at closing				(84.1)
Total gain on sale included in Other operating expenses	$ 53.6	$ 53.6
Taxes payable				$ 20.8

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Amount classified as income tax obligations attributable to disposal group held for sale or disposed of.

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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