Equity Method Investment in Change Healthcare LLC (Narrative) (Details) - shares		6 Months Ended
Jul. 01, 2019	Sep. 30, 2019
Schedule of Equity Method Investments [Line Items]
Ownership percentage acquired in exchange		30.00%
Ownership percentage in Joint Venture	41.00%	41.00%
Shares received from Joint Venture	49,285,713
Additional ownership percentage acquired	11.00%
Legacy CHC [Member]
Schedule of Equity Method Investments [Line Items]
Percentage investment exchanged for membership interest in Joint Venture		45.615%
Joint Venture [Member] \| Legacy CHC [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage in Joint Venture		54.385%

Equity Method Investment, Additional Ownership Percentage Acquired

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Percentage Investment Exchanged for Ownership of Joint Venture

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Cumulative number of shares issued or sold by the subsidiary or equity method investee on all stock transactions.

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Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

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