Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

No definition available.

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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- Definition

Amount of the cumulative effect on retained earnings before related income tax effect.

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- Definition

This item represents a receivable for an incentive or inducement contractually stipulated between parties to a lease whereby the lessor has committed to provide the entity (lessee) with a cash payment as inducement to enter the lease.

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- Definition

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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No definition available.

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- Definition

Amount of lessee's right to use underlying asset under operating lease.

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- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Basis of Presentation and Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Millions	May 23, 2019	Jan. 01, 2019	Jun. 30, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative Effect on Retained Earnings, before Tax		$ 1
Operating Leases, Future Minimum Payments Due		160
Operating Lease, Right-of-Use Asset		150	$ 216
Lease Incentive Receivable		$ 10
The Navigators Group, Inc. [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Business Acquisition, Share Price	$ 70
Business Combination, Consideration Transferred	$ 2,136