Segment Information - Additional Information (Detail)	6 Months Ended
Dec. 31, 2019 Segment Brand Country Item
Segment Reporting Information [Line Items]
Number of reportable segments \| Segment	5
Foxtel [Member]
Segment Reporting Information [Line Items]
Company ownership percentage	65.00%
Foxtel [Member] \| Telstra [Member]
Segment Reporting Information [Line Items]
Ownership interest held by minority interest	35.00%
Digital Real Estate Services [Member] \| Move Inc [Member]
Segment Reporting Information [Line Items]
Company ownership percentage	80.00%
Digital Real Estate Services [Member] \| Move Inc [Member] \| REA Group Inc [Member]
Segment Reporting Information [Line Items]
Ownership interest held by minority interest	20.00%
Digital Real Estate Services [Member] \| REA Group Inc [Member]
Segment Reporting Information [Line Items]
Company ownership percentage	61.60%
Book Publishing [Member] \| Minimum [Member]
Segment Reporting Information [Line Items]
Number of branded publishing imprints \| Brand	120
Number of countries \| Country	17
Subscription Video Services [Member] \| Foxtel [Member]
Segment Reporting Information [Line Items]
Company ownership percentage	65.00%
Subscription Video Services [Member] \| Foxtel [Member] \| Telstra [Member]
Segment Reporting Information [Line Items]
Ownership interest held by minority interest	35.00%
Subscription Video Services [Member] \| Minimum [Member] \| Foxtel [Member]
Segment Reporting Information [Line Items]
Number of channels \| Item	200

Number Of Branded Publishing Imprints

No definition available.

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Namespace Prefix:	nws_
Data Type:	xbrli:integerItemType
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- Definition

Number of Channels

+ References

No definition available.

+ Details

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Namespace Prefix:	nws_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
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- Definition

The number of countries in which the entity operates as of balance sheet date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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Period Type:	instant

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

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.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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