Accretion of Purchase Accounting, Fair Value Adjustment, Debt

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Debt Instrument, Additional Incremental Debt Capacity

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Deferred Financing Costs

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Net First Lien Leverage Ratio, incurrence indebtedness

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Revolving Credit Facility, Additional Borrowing Capacity

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Face (par) amount of the original debt instrument that was repurchased.

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Amount, after accumulated amortization, of debt discount (premium).

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Maximum month-end amount borrowed under the credit facility during the period.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount of long-term debt and capital lease obligations including current maturities.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Debt (Details)				1 Months Ended	3 Months Ended		6 Months Ended
Debt (Details)	Jun. 30, 2019 USD ($)	Feb. 01, 2019 USD ($)	Dec. 31, 2018 USD ($)	Apr. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Feb. 15, 2019 USD ($)	Feb. 21, 2018 USD ($)
Debt Instrument [Line Items]
Deferred Financing Costs				$ 17,000,000
Loss on extinguishment of debt					$ 66,911,000	$ 0	$ 88,472,000	$ 61,597,000
Debt Instrument, Unamortized Discount (Premium), Net	$ (14,206,000)		$ (19,642,000)		(14,206,000)		(14,206,000)
Debt Issuance Costs, Net	(65,236,000)		(42,840,000)		(65,236,000)		(65,236,000)
Accretion of Purchase Accounting, Fair Value Adjustment, Debt	(200,289,000)		(205,483,000)		(200,289,000)		(200,289,000)
Long-term Debt and Capital Lease Obligations, Including Current Maturities	9,810,943,000		10,002,296,000		9,810,943,000		9,810,943,000
Long-term Debt, Current Maturities	(329,884,000)		(58,184,000)		(329,884,000)		(329,884,000)
Long-term Debt, Excluding Current Maturities	9,481,059,000		9,944,112,000		9,481,059,000		9,481,059,000
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Capital Lease Obligations	81,409,000		49,911,000		81,409,000		81,409,000
Revolving Credit Facility \| Secured Debt [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Description				50,000,000
First Lien Term B1 Loan [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Repurchased face amount				500,000,000
Debt Instrument, Additional Incremental Debt Capacity							300,000,000
Loss on extinguishment of debt				$ (6,000,000)
Long-term debt, gross	3,414,353,000		3,924,438,000		3,414,353,000		$ 3,414,353,000
First Lien Term B1 Loan [Member] \| Minimum \| Secured Debt [Member]
Debt Instrument [Line Items]
Net First Lien Leverage Ratio, incurrence indebtedness				1.00			1.00
First Lien Term B1 Loan [Member] \| Maximum \| Secured Debt [Member]
Debt Instrument [Line Items]
Net First Lien Leverage Ratio, incurrence indebtedness				3.20			2.35
2023 Revolving Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity									$ 50,000,000
Remaining borrowing capacity	301,000,000				$ 301,000,000		$ 301,000,000
Line of Credit Facility, Maximum Month-end Outstanding Amount	$ 99,000,000		0
Prime Notes [Member]
Debt Instrument [Line Items]
Loss on extinguishment of debt								$ 62,000,000
Prime Notes [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Repurchased face amount		$ 300,000,000		$ 1,000,000,000						$ 594,000,000
Interest rate	9.25%				9.25%		9.25%
Long-term debt, gross	$ 1,246,000,000		2,546,000,000		$ 1,246,000,000		$ 1,246,000,000
Repayments of Debt		319,000,000		$ 1,100,000,000
ADT Notes due 2020 [Member] \| Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate	5.25%				5.25%		5.25%
Long-term debt, gross	$ 300,000,000		300,000,000		$ 300,000,000		$ 300,000,000
ADT Notes due 2021 [Member] \| Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate	6.25%				6.25%		6.25%
Long-term debt, gross	$ 1,000,000,000		1,000,000,000		$ 1,000,000,000		$ 1,000,000,000
ADT Notes due 2022 [Member] \| Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate	3.50%				3.50%		3.50%
Long-term debt, gross	$ 1,000,000,000		1,000,000,000		$ 1,000,000,000		$ 1,000,000,000
ADT Notes due 2023 [Member] \| Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate	4.125%				4.125%		4.125%
Long-term debt, gross	$ 700,000,000		700,000,000		$ 700,000,000		$ 700,000,000
ADT Notes due 2032 [Member] \| Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate	4.875%				4.875%		4.875%
Long-term debt, gross	$ 728,016,000		728,016,000		$ 728,016,000		$ 728,016,000
ADT Notes due 2042 [Member] \| Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate	4.875%				4.875%		4.875%
Long-term debt, gross	$ 21,896,000		21,896,000		$ 21,896,000		$ 21,896,000
First Priority Senior Secured Notes due 2024 [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Interest rate	5.25%			5.25%	5.25%		5.25%
Long-term debt, gross	$ 750,000,000		0		$ 750,000,000		$ 750,000,000
Debt Instrument, Face Amount				$ 750,000,000
First Priority Senior Secured Notes due 2026 [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Interest rate	5.75%			5.75%	5.75%		5.75%
Long-term debt, gross	$ 750,000,000		$ 0		$ 750,000,000		$ 750,000,000
Debt Instrument, Face Amount				$ 750,000,000
First Priority Senior Secured Notes due 2024 and 2026 [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Deferred Financing Costs				25,000,000
Prime Notes [Member] \| Prime Notes [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Loss on extinguishment of debt		$ (22,000,000)		$ (61,000,000)