Divestitures Narrative (Details) - naviHealth [Member] - USD ($) $ in Millions		3 Months Ended
Aug. 01, 2018	Sep. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	98.00%
Proceeds from Divestiture of Businesses	$ 737
Equity Method Investments	358	$ 344
Redeemable Non Controlling Interest Divested	$ 12
Tax Expense From Divestiture of a Business		130
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	44.00%
Partnership Indirect Ownership	100.00%
Pre-Tax Gain on Divestiture		$ 508

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Pre-Tax Gain on Divestiture

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Tax Expense From Divestiture of a Business

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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.

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

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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