DEBT - Outstanding Debt (Details) - USD ($)
|
3 Months Ended |
6 Months Ended |
|
Jun. 30, 2026 |
Jun. 30, 2026 |
Dec. 31, 2025 |
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
$ 26,741,669,000
|
$ 26,741,669,000
|
$ 26,407,393,000
|
| Face Amount of Senior Notes |
6,125,000,000
|
6,125,000,000
|
6,125,000,000
|
| Carrying amount of Senior Notes |
6,162,803,000
|
6,162,803,000
|
6,166,925,000
|
| Face Amount of Senior Guaranteed Notes |
10,710,000,000
|
10,710,000,000
|
10,710,000,000
|
| Carrying amount of Senior Guaranteed Notes |
10,685,375,000
|
10,685,375,000
|
10,681,252,000
|
| Face amount of Credit Facility Debt |
5,037,500,000
|
5,037,500,000
|
4,952,500,000
|
| Carrying value of Credit Facility Debt |
5,033,627,000
|
5,033,627,000
|
4,946,401,000
|
| Finance Lease, Liability |
112,169,000
|
112,169,000
|
105,619,000
|
| Long-term debt |
26,550,765,000
|
26,550,765,000
|
26,206,214,000
|
| Long-Term Debt, Current Maturities |
(4,147,837,000)
|
(4,147,837,000)
|
(60,842,000)
|
| Long-term debt, net of current maturities |
22,402,928,000
|
22,402,928,000
|
26,145,372,000
|
| Loans Payable |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Long-term debt |
4,151,284,000
|
4,151,284,000
|
60,842,000
|
| Long-Term Debt, Current Maturities |
(4,147,837,000)
|
(4,147,837,000)
|
|
| Cablevision Lightpath |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Face Amount of Senior Notes and Senior Secured Notes |
1,657,000,000
|
1,657,000,000
|
1,534,183,000
|
| Carrying amount of Senior Notes and Senior Secured Notes |
1,633,079,000
|
1,633,079,000
|
1,525,949,000
|
| Revolving Credit Facility | CSC Holdings Revolving Credit Facility |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
$ 2,225,000,000
|
$ 2,225,000,000
|
2,125,000,000
|
| Stated interest rate |
5.975%
|
5.975%
|
|
| Credit facility |
$ 2,223,984,000
|
$ 2,223,984,000
|
2,123,506,000
|
| Letters of credit outstanding |
174,799,000
|
174,799,000
|
|
| Line of credit facility, remaining borrowing capacity |
75,201,000
|
75,201,000
|
|
| Line of Credit Facility, Maximum Borrowing Capacity |
2,475,000
|
2,475,000
|
|
| Secured Debt [Member] | Incremental Term Loan B-5 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
$ 2,812,500,000
|
$ 2,812,500,000
|
2,827,500,000
|
| Stated interest rate |
8.25%
|
8.25%
|
|
| Credit facility |
$ 2,809,643,000
|
$ 2,809,643,000
|
2,822,895,000
|
| Line of credit facility, periodic payment amount |
7,500,000
|
|
|
| Secured Debt [Member] | Incremental Term Loan B-5 | Alternate base Rate |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Basis spread on variable rate |
|
1.50%
|
|
| Secured Debt [Member] | Incremental Term Loan B-5 | Synthetic LIBOR |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Basis spread on variable rate |
|
2.50%
|
|
| Secured Debt [Member] | Cablevision Lightpath Term B Loan |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
0
|
$ 0
|
669,183,000
|
| Credit facility |
$ 0
|
$ 0
|
667,201,000
|
| Secured Debt [Member] | Cablevision Lightpath Term B Loan | Alternate base Rate |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Basis spread on variable rate |
|
2.25%
|
|
| Secured Debt [Member] | Cablevision Lightpath Term B Loan | Fed Rate, Prime Rate and Alternate Base Rate |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Basis spread on variable rate |
|
50.00%
|
|
| Secured Debt [Member] | Unsub Group Credit Facility |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
|
|
2,000,000,000
|
| Stated interest rate |
9.00%
|
9.00%
|
|
| Credit facility |
$ 2,923,712,000
|
$ 2,923,712,000
|
1,898,893,000
|
| Secured Debt [Member] | NYC ABS Receivable facility loan |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
980,091,000
|
980,091,000
|
|
| Credit facility |
881,175,000
|
881,175,000
|
|
| Senior Subordinated Notes | Unsub Group Credit Facility |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
$ 3,100,000,000
|
$ 3,100,000,000
|
|
| Senior Notes | Cablevision 7.500% Notes due April 1, 2028 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Stated interest rate |
7.50%
|
7.50%
|
|
| Principal amount |
$ 4,118,000
|
$ 4,118,000
|
4,118,000
|
| Outstanding debt |
$ 4,116,000
|
$ 4,116,000
|
4,116,000
|
| Senior Notes | CSC Holdings 7.500% Notes due April 1, 2028 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Stated interest rate |
7.50%
|
7.50%
|
|
| Principal amount |
$ 1,045,882,000
|
$ 1,045,882,000
|
1,045,882,000
|
| Outstanding debt |
$ 1,045,453,000
|
$ 1,045,453,000
|
1,045,342,000
|
| Senior Notes | CSC Holdings 5.750% Notes due January 15, 2030 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Stated interest rate |
5.75%
|
5.75%
|
|
| Principal amount |
$ 2,250,000,000
|
$ 2,250,000,000
|
2,250,000,000
|
| Outstanding debt |
$ 2,266,163,000
|
$ 2,266,163,000
|
2,268,198,000
|
| Senior Notes | CSC Holdings 4.625% Notes due December 1, 2030 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Stated interest rate |
4.625%
|
4.625%
|
|
| Principal amount |
$ 2,325,000,000
|
$ 2,325,000,000
|
2,325,000,000
|
| Outstanding debt |
$ 2,348,140,000
|
$ 2,348,140,000
|
2,350,423,000
|
| Senior Notes | CSC Holdings 5.000% Notes due November 15, 2031 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Stated interest rate |
5.00%
|
5.00%
|
|
| Principal amount |
$ 500,000,000
|
$ 500,000,000
|
500,000,000
|
| Outstanding debt |
498,931,000
|
498,931,000
|
498,846,000
|
| Senior Notes | Cablevision Lightpath LLC 5.625% Notes due September 15, 2028 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
0
|
0
|
415,000,000
|
| Outstanding debt |
$ 0
|
$ 0
|
411,428,000
|
| Secured Debt [Member] | 5.5% Notes due April 15, 2027 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Stated interest rate |
5.50%
|
5.50%
|
|
| Secured Debt [Member] | 5.375% Senior Guaranteed Notes Due February 1, 2028 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Stated interest rate |
5.375%
|
5.375%
|
|
| Secured Debt [Member] | CSC Holdings 6.500% Notes due February 1, 2029 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Stated interest rate |
6.50%
|
6.50%
|
|
| Secured Debt [Member] | CSC Holdings 4.125% Notes due December 1, 2030 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Stated interest rate |
4.125%
|
4.125%
|
|
| Secured Debt [Member] | 8.0% Notes due April 15, 2020 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Stated interest rate |
3.375%
|
3.375%
|
|
| Secured Debt [Member] | CSC Holdings 4.500% Senior Guaranteed Notes due November 15, 2021 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Stated interest rate |
4.50%
|
4.50%
|
|
| Secured Debt [Member] | CSC Holdings 11.2500% Senior Guaranteed Notes due May 15, 2028 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Stated interest rate |
11.25%
|
11.25%
|
|
| Secured Debt [Member] | CSC Holdings 11.7400% Senior Guaranteed Notes due Jan 31, 2029 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Stated interest rate |
11.75%
|
11.75%
|
|
| Secured Debt [Member] | Cablevision Lightpath LLC 3.875% Notes due September 15, 2027 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
$ 0
|
$ 0
|
450,000,000
|
| Outstanding debt |
0
|
0
|
447,320,000
|
| Senior Subordinated Notes | 5.5% Notes due April 15, 2027 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
1,310,000,000
|
1,310,000,000
|
1,310,000,000
|
| Outstanding debt |
1,309,410,000
|
1,309,410,000
|
1,309,053,000
|
| Senior Subordinated Notes | 5.375% Senior Guaranteed Notes Due February 1, 2028 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
1,000,000,000
|
1,000,000,000
|
1,000,000,000
|
| Outstanding debt |
998,311,000
|
998,311,000
|
997,814,000
|
| Senior Subordinated Notes | CSC Holdings 6.500% Notes due February 1, 2029 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
1,750,000,000
|
1,750,000,000
|
1,750,000,000
|
| Outstanding debt |
1,748,951,000
|
1,748,951,000
|
1,748,770,000
|
| Senior Subordinated Notes | CSC Holdings 4.125% Notes due December 1, 2030 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
1,100,000,000
|
1,100,000,000
|
1,100,000,000
|
| Outstanding debt |
1,097,634,000
|
1,097,634,000
|
1,097,399,000
|
| Senior Subordinated Notes | 8.0% Notes due April 15, 2020 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
1,000,000,000
|
1,000,000,000
|
1,000,000,000
|
| Outstanding debt |
998,345,000
|
998,345,000
|
998,183,000
|
| Senior Subordinated Notes | CSC Holdings 4.500% Senior Guaranteed Notes due November 15, 2021 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
1,500,000,000
|
1,500,000,000
|
1,500,000,000
|
| Outstanding debt |
1,496,828,000
|
1,496,828,000
|
1,496,573,000
|
| Senior Subordinated Notes | CSC Holdings 11.2500% Senior Guaranteed Notes due May 15, 2028 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
1,000,000,000
|
1,000,000,000
|
1,000,000,000
|
| Outstanding debt |
997,071,000
|
997,071,000
|
996,406,000
|
| Senior Subordinated Notes | CSC Holdings 11.7400% Senior Guaranteed Notes due Jan 31, 2029 |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
2,050,000,000
|
2,050,000,000
|
2,050,000,000
|
| Outstanding debt |
2,038,825,000
|
2,038,825,000
|
2,037,054,000
|
| Long-term Debt |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Principal amount |
22,590,385,000
|
22,590,385,000
|
26,346,551,000
|
| Long-term debt, net of current maturities |
$ 22,402,928,000
|
$ 22,402,928,000
|
$ 26,145,372,000
|