Label	Element	Value
Predecessor Equity [Member] \| Eastern Energy Gas Holdings, LLC [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	$ 1,361,000,000
Member Units [Member] \| Eastern Energy Gas Holdings, LLC [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4,261,000,000
AOCI Attributable to Parent [Member] \| Eastern Energy Gas Holdings, LLC [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	(98,000,000)
Noncontrolling Interest [Member] \| Eastern Energy Gas Holdings, LLC [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2,971,000,000
Cumulative Effect, Period of Adoption, Adjustment [Member] \| Member Units [Member] \| Eastern Energy Gas Holdings, LLC [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	29,000,000
Cumulative Effect, Period of Adoption, Adjustment [Member] \| AOCI Attributable to Parent [Member] \| Eastern Energy Gas Holdings, LLC [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	$ (26,000,000)

Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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+ Details