Commitments And Contingencies (Narrative) (Details) $ in Millions	Jun. 30, 2018 USD ($)
Loss Contingencies [Line Items]
Liability for Uncertainty in Income Taxes, Noncurrent	$ 237
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	140
Business Combination, Contingent Consideration, Liability	122
Unrecorded Unconditional Purchase Obligation Payable in Common Stock Per Year \| Maximum
Loss Contingencies [Line Items]
Unrecorded Unconditional Purchase Obligation	10
Unrecorded Unconditional Purchase Obligation Payable in Common Stock \| Maximum
Loss Contingencies [Line Items]
Unrecorded Unconditional Purchase Obligation	$ 30

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(3)
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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

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-Publisher FASB
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Amount recognized for uncertainty in income taxes classified as noncurrent.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 1
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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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Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

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