Commitments and Contingencies (Unrecorded Purchase Obligation) (Details) $ in Millions	Sep. 30, 2026 USD ($)
Unrecorded Unconditional Purchase Obligation [Line Items]
Remainder of 2026	$ 610.6
2027	1,450.7
2028	1,172.1
2029	647.8
2030	484.8
2031	89.7
Thereafter	201.0
Total	4,656.7
Purchase commitments
Unrecorded Unconditional Purchase Obligation [Line Items]
Remainder of 2026	408.1
2027	876.9
2028	589.0
2029	137.9
2030	54.4
2031	13.7
Thereafter	57.9
Total	2,137.9
Programming commitments
Unrecorded Unconditional Purchase Obligation [Line Items]
Remainder of 2026	86.8
2027	328.4
2028	298.4
2029	254.6
2030	175.5
2031	33.3
Thereafter	0.0
Total	1,177.0
Network and connectivity commitments
Unrecorded Unconditional Purchase Obligation [Line Items]
Remainder of 2026	15.9
2027	38.3
2028	99.3
2029	78.6
2030	76.9
2031	0.3
Thereafter	0.3
Total	309.6
Other commitments
Unrecorded Unconditional Purchase Obligation [Line Items]
Remainder of 2026	99.8
2027	207.1
2028	185.4
2029	176.7
2030	178.0
2031	42.4
Thereafter	142.8
Total	$ 1,032.2

Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Includes, but is not limited to, lease not yet commenced.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 440
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482648/440-10-50-4

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

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+ References

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Amount of unrecorded obligation to transfer funds in future for fixed or minimum amount or quantity of product and service at fixed or minimum price. Includes, but is not limited to, lease not yet commenced and take-or-pay and throughput contracts.

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 440
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482648/440-10-50-4

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 440
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482648/440-10-50-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 440
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482648/440-10-50-4

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 440
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482648/440-10-50-4

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