Divestitures	3 Months Ended
Mar. 31, 2017
Discontinued Operations and Disposal Groups [Abstract]
Divestitures	Divestitures In April 2016, the Company disposed of a business, historically included within the Civil segment, that was primarily focused on providing design, build and heavy construction engineering services. The Company received cash proceeds of $23 million, resulting in a preliminary pre-tax gain on sale of $3 million. The major classes of assets and liabilities sold included $73 million of accounts receivable, net; $3 million of non-current assets and $63 million of accounts payable and accrued liabilities. In addition, the Company recorded a $6 million liability in connection with issuance of a performance guarantee on a contract sold and guarantee of collection of the accounts receivables transferred. The Company paid $1 million of selling costs related to the transaction. The Company recorded the preliminary pre-tax gain on sale in "Other income, net" in the Company's condensed consolidated statements of income during the quarter ended July 1, 2016. On July 24, 2015, the Company completed the sale of its equity interests in Plainfield Renewable Energy Holdings LLC for an aggregate consideration of $102 million, subject to certain adjustments and contingent earn-out payments. The consideration received by the Company at closing consisted of a cash payment of $29 million and a secured promissory note for $73 million, net of discount (the “Note”). The Note is payable semi-annually with a final lump sum in July 2018. The Company collected $6 million of principal and interest during the quarter ended March 31, 2017. As of March 31, 2017, the Company expects the remainder of the Note to be collectible in full.

Divestitures

3 Months Ended

Mar. 31, 2017

Discontinued Operations and Disposal Groups [Abstract]

In April 2016, the Company disposed of a business, historically included within the Civil segment, that was primarily focused on providing design, build and heavy construction engineering services. The Company received cash proceeds of $23 million, resulting in a preliminary pre-tax gain on sale of $3 million. The major classes of assets and liabilities sold included $73 million of accounts receivable, net; $3 million of non-current assets and $63 million of accounts payable and accrued liabilities. In addition, the Company recorded a $6 million liability in connection with issuance of a performance guarantee on a contract sold and guarantee of collection of the accounts receivables transferred. The Company paid $1 million of selling costs related to the transaction. The Company recorded the preliminary pre-tax gain on sale in "Other income, net" in the Company's condensed consolidated statements of income during the quarter ended July 1, 2016.

On July 24, 2015, the Company completed the sale of its equity interests in Plainfield Renewable Energy Holdings LLC for an aggregate consideration of $102 million, subject to certain adjustments and contingent earn-out payments. The consideration received by the Company at closing consisted of a cash payment of $29 million and a secured promissory note for $73 million, net of discount (the “Note”). The Note is payable semi-annually with a final lump sum in July 2018. The Company collected $6 million of principal and interest during the quarter ended March 31, 2017. As of March 31, 2017, the Company expects the remainder of the Note to be collectible in full.