Goodwill and Other Intangible Assets, net (Amortization Expense) (Details) $ in Millions	Jun. 30, 2020 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Estimated amortization expense, year one, assuming no additional transactions occur that require the amortization of intangible assets	$ 73
Estimated amortization expense, year two, assuming no additional transactions occur that require the amortization of intangible assets	73
Estimated amortization expense, year three, assuming no additional transactions occur that require the amortization of intangible assets	73
Estimated amortization expense, year four, assuming no additional transactions occur that require the amortization of intangible assets	73
Estimated amortization expense, year five, assuming no additional transactions occur that require the amortization of intangible assets	$ 73

Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next 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).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized 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).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth 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).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third 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).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second 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).

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