XML 74 R130.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2

Subsequent event - Additional information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($)
Subsequent Event [Member]
Intangible Asset Impairment	$ 211

X

- Definition

Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.

+ References

No definition available.

+ Details

Name:	us-gaap_GoodwillAndIntangibleAssetImpairment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: