COMMITMENTS AND CONTINGENCIES (Details) $ in Billions		3 Months Ended
	Mar. 27, 2015 USD ($) communicationsSite renewalPeriod	Mar. 31, 2023 USD ($) communicationsSite renewalPeriod	Dec. 31, 2000 communicationsSite
Verizon Transaction
Loss Contingencies [Line Items]
Leased assets, number of communication sites | communicationsSite	11,250
Right to lease, weighted average term	28 years
Aggregate purchase option price for towers | $	$ 5.0
Customer lease, initial term	10 years
Successive terms to renew lease | renewalPeriod	8
Lease renewal term	5 years
AT&T Transaction
Loss Contingencies [Line Items]
Leased assets, number of communication sites | communicationsSite		500	1,900
Aggregate purchase option price for towers | $		$ 1.1
Successive terms to renew lease | renewalPeriod		5
Lease renewal term		5 years
Operating lease, term of contract		27 years