Subsequent Events (Details) - Subsequent Event - USD ($)	Nov. 01, 2021	Oct. 22, 2021
E&I Engineering
Subsequent Event [Line Items]
Business combination consideration transferred, upfront consideration	$ 1,800,000,000
Payments to acquire businesses, gross	1,200,000,000
Business combination, step acquisition, equity interest in acquiree, fair value	$ 630,000,000.0
Stock consideration transferred (in shares)	23,100,000
Business combination, additional cash consideration	$ 100,000,000.0
Incremental cash consideration	100,000,000.0
Senior Secured Notes due 2028 \| Private Placement
Subsequent Event [Line Items]
Aggregate principal amount		$ 850,000,000.0
Stated interest rate		4.125%
Debt issuance costs, net		$ 12,000,000.0
Minimum \| E&I Engineering
Subsequent Event [Line Items]
Business combination, earnings before interest, taxes, depreciation, and amortization	146,000,000.0
Maximum \| E&I Engineering
Subsequent Event [Line Items]
Business combination, earnings before interest, taxes, depreciation, and amortization	$ 156,000,000.0

Number of shares of equity interests issued or issuable to acquire entity.

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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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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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