v3.10.0.1

Share-based Compensation (Awards Outstanding and Exercisable) (Details)	Jun. 30, 2018 $ / shares shares
Held by Liberty Global employees: | Options and SARs | Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding (in shares)	16,106,261
Options outstanding, weighted average exercise or base price (in dollars per shares) | $ / shares	$ 32.28
Options exercisable (in shares)	9,311,226
Options exercisable, weighted average exercise price or base price (in dollars per shares) | $ / shares	$ 31.85
Held by Liberty Global employees: | Options and SARs | Class C
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding (in shares)	37,449,896
Options outstanding, weighted average exercise or base price (in dollars per shares) | $ / shares	$ 30.38
Options exercisable (in shares)	22,890,732
Options exercisable, weighted average exercise price or base price (in dollars per shares) | $ / shares	$ 29.65
Held by Liberty Global employees: | RSUs | Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options outstanding (in shares)	640,075
Held by Liberty Global employees: | RSUs | Class C
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options outstanding (in shares)	1,265,060
Held by Liberty Global employees: | PSUs | Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options outstanding (in shares)	1,771,830
Held by Liberty Global employees: | PSUs | Class C
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options outstanding (in shares)	3,548,966
Held by former Liberty Global employees: | Options and SARs | Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding (in shares)	1,202,625
Options outstanding, weighted average exercise or base price (in dollars per shares) | $ / shares	$ 32.72
Options exercisable (in shares)	952,952
Options exercisable, weighted average exercise price or base price (in dollars per shares) | $ / shares	$ 31.91
Held by former Liberty Global employees: | Options and SARs | Class C
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding (in shares)	2,825,949
Options outstanding, weighted average exercise or base price (in dollars per shares) | $ / shares	$ 30.54
Options exercisable (in shares)	2,325,227
Options exercisable, weighted average exercise price or base price (in dollars per shares) | $ / shares	$ 29.64
Held by former Liberty Global employees: | RSUs | Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options outstanding (in shares)	13,719
Held by former Liberty Global employees: | RSUs | Class C
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options outstanding (in shares)	27,501
Held by former Liberty Global employees: | PSUs | Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options outstanding (in shares)	172,971
Held by former Liberty Global employees: | PSUs | Class C
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options outstanding (in shares)	346,299

X

- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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+ References

No definition available.

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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