Business Combinations and Divestitures Zynstra Details (Details) - Zynstra Ltd. [Member] $ in Millions	12 Months Ended
Dec. 31, 2019 USD ($)
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	$ 134
Business Combination, Cash Consideration Paid	112
Business Combination, Contingent Consideration, Liability, Current	22
Business Acquisition, Transaction Costs	$ 2

Business Combination, Cash Consideration Paid

No definition available.

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- Definition

Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

+ References

No definition available.

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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.

+ References

No definition available.

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- Definition

Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

+ References

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- Definition

Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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