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Business Combination, Contingent and Deferred Consideration

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Payments For Previous Acquisition, Contingent Consideration

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Payments For Previous Acquisition, Deferred Consideration

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

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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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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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

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This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The number of businesses acquired by the entity during the period.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Acquisitions and Dispositions (Narrative) (Details) £ / shares in Units, $ in Millions, £ in Billions				3 Months Ended		12 Months Ended
	Apr. 01, 2019 USD ($)	Apr. 01, 2019 GBP (£) £ / shares	Sep. 20, 2018 GBP (£)	Mar. 31, 2019 USD ($) acquisition	Mar. 31, 2018 USD ($)	Dec. 31, 2018 acquisition	Jan. 01, 2019
Business Acquisition [Line Items]
Total consideration				$ 177	$ 36
Cash				142	29
Estimated fair value of deferred/contingent consideration				35	7
Deferred purchase consideration from prior years' acquisitions				23	40
Contingent consideration from prior year's acquisitions				6	30
Assumption of debt				5	4
Current Fiscal Period Acquisitions
Business Acquisition [Line Items]
Total consideration				177
Cash				142
Estimated fair value of deferred/contingent consideration				35
Revenue related to acquisitions				4	3
Operating (loss) income related to acquisitions				1	(1)
Prior Fiscal Periods Acquisitions
Business Acquisition [Line Items]
Deferred purchase consideration from prior years' acquisitions					40
Contingent consideration from prior year's acquisitions				$ 35	$ 40
Jardine Lloyd Thompson Group plc
Business Acquisition [Line Items]
Total consideration \| £			£ 5.2
Risk and Insurance Services Segment
Business Acquisition [Line Items]
Number of acquisitions made (in acquisitions) \| acquisition				2		12
Consulting Segment
Business Acquisition [Line Items]
Number of acquisitions made (in acquisitions) \| acquisition						8
Minimum
Business Acquisition [Line Items]
Revenue target period (in years)				2 years
Minimum \| Current Fiscal Period Acquisitions
Business Acquisition [Line Items]
Revenue target period (in years)				2 years
Maximum
Business Acquisition [Line Items]
Revenue target period (in years)				4 years
Maximum \| Current Fiscal Period Acquisitions
Business Acquisition [Line Items]
Revenue target period (in years)				4 years
Subsequent Event \| Jardine Lloyd Thompson Group plc
Business Acquisition [Line Items]
Total consideration \| £		£ 5.2
Business acquisition, share price (in usd per share) \| £ / shares		£ 19.15
Equity interests issued and issuable	$ 5,600	£ 4.3
Assumption of debt	$ 1,000
Marsh India
Business Acquisition [Line Items]
Percentage of ownership in equity investment						26.00%	49.00%