New Accounting Pronouncements	3 Months Ended
Mar. 31, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements and Changes in Accounting Principles	New Accounting Pronouncements Standards adopted in 2017 Stock-Based Compensation On January 1, 2017, we adopted an accounting standards update issued by the Financial Accounting Standards Board (FASB) which simplifies several aspects of accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and the classification on the statement of cash flows. In addition, the update allows an entity-wide accounting policy election to either estimate the number of awards that are expected to vest or account for forfeitures when they occur. The element of the update that will have the most impact on our financial statements will be income tax consequences. Excess tax benefits and tax deficiencies on stock-based compensation awards are now included in our tax provision within our condensed consolidated statement of operations as discrete items in the reporting period in which they occur, rather than previous accounting of recording in additional paid-in capital on our condensed consolidated balance sheets. We have also elected to continue our current policy of estimating forfeitures of stock-based compensation awards at the time of grant and revising in subsequent periods to reflect actual forfeitures. We applied the update prospectively beginning January 1, 2017, and the adoption did not have a material impact on our condensed consolidated financial statements. Intra-Entity Transfers of Assets On January 1, 2017, we adopted an accounting standards update issued by the FASB to improve the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. The update requires an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs, rather than the previous requirement to defer recognition of current and deferred income taxes for an intra-entity asset transfer until the asset had been sold to an outside party. Two common examples of assets included in the scope of this update are intellectual property and property, plant and equipment. The update was applied on a modified retrospective basis resulting in a cumulative-effect adjustment of $384 million recorded directly to retained earnings as of January 1, 2017. Inventory On January 1, 2017, we adopted an accounting standards update issued by the FASB which simplifies the measurement of inventory. The update now requires inventory measured using the first in, first out or average cost methods to be subsequently measured at the lower of cost and net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable cost of completion, disposal and transportation. The update eliminated the requirement to subsequently measure inventory at the lower of cost or market, which could be replacement cost, net realizable value, or net realizable value less an approximately normal profit margin. The adoption of this update did not impact our condensed consolidated financial statements. Standards not yet adopted Revenue Recognition In May 2014, the FASB and the International Accounting Standards Board (IASB) issued a comprehensive new revenue recognition standard that will supersede existing revenue recognition guidance under U.S. GAAP and International Financial Reporting Standards (IFRS). The issuance of this guidance completes the joint effort by the FASB and the IASB to improve financial reporting by creating common revenue recognition guidance for U.S. GAAP and IFRS. This new revenue recognition standard will be effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. The core principle of the new guidance is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. The standard creates a five step model that requires companies to exercise judgment when considering the terms of a contract and all relevant facts and circumstances. The standard allows for several transition methods: (a) a full retrospective adoption in which the standard is applied to all of the periods presented, or (b) a modified retrospective adoption in which the standard is applied only to the most current period presented in the financial statements, including additional disclosures of the standard’s application impact to individual financial statement line items. We are currently determining the impacts of the new standard on our contract portfolio. Our approach includes performing a detailed review of key contracts representative of our different businesses and comparing historical accounting policies and practices to the new standard. Because the standard will impact our business processes, systems and controls, we are also developing a comprehensive change management project plan to guide the implementation. Our services are primarily short-term in nature, and our assessment at this stage is that we do not expect the new revenue recognition standard will have a material impact on our financial statements upon adoption. We are still evaluating software contracts within our Landmark Software and Services product service line and long-term contracts requiring integrated project management services within our Consulting and Project Management product service line for potential impact from the new accounting guidance. We currently intend on adopting the new standard utilizing the modified retrospective method that will result in a cumulative effect adjustment as of January 1, 2018. Leases In February 2016, the FASB issued an accounting standards update related to accounting for leases, which requires the assets and liabilities that arise from leases to be recognized on the balance sheet. Currently only capital leases are recorded on the balance sheet. This update will require the lessee to recognize a lease liability equal to the present value of the lease payments and a right-of-use asset representing its right to use the underlying asset for the lease term for all leases longer than 12 months. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and liabilities and recognize the lease expense for such leases generally on a straight-line basis over the lease term. This update will be effective for fiscal periods beginning after December 15, 2018, including interim periods within that reporting period. Early adoption is permitted. We are currently evaluating the impact that this update will have on our condensed consolidated financial statements.

New Accounting Pronouncements

Standards adopted in 2017

Stock-Based Compensation

On January 1, 2017, we adopted an accounting standards update issued by the Financial Accounting Standards Board (FASB) which simplifies several aspects of accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and the classification on the statement of cash flows. In addition, the update allows an entity-wide accounting policy election to either estimate the number of awards that are expected to vest or account for forfeitures when they occur. The element of the update that will have the most impact on our financial statements will be income tax consequences. Excess tax benefits and tax deficiencies on stock-based compensation awards are now included in our tax provision within our condensed consolidated statement of operations as discrete items in the reporting period in which they occur, rather than previous accounting of recording in additional paid-in capital on our condensed consolidated balance sheets. We have also elected to continue our current policy of estimating forfeitures of stock-based compensation awards at the time of grant and revising in subsequent periods to reflect actual forfeitures. We applied the update prospectively beginning January 1, 2017, and the adoption did not have a material impact on our condensed consolidated financial statements.

Intra-Entity Transfers of Assets

On January 1, 2017, we adopted an accounting standards update issued by the FASB to improve the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. The update requires an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs, rather than the previous requirement to defer recognition of current and deferred income taxes for an intra-entity asset transfer until the asset had been sold to an outside party. Two common examples of assets included in the scope of this update are intellectual property and property, plant and equipment. The update was applied on a modified retrospective basis resulting in a cumulative-effect adjustment of $384 million recorded directly to retained earnings as of January 1, 2017.

Inventory

On January 1, 2017, we adopted an accounting standards update issued by the FASB which simplifies the measurement of inventory. The update now requires inventory measured using the first in, first out or average cost methods to be subsequently measured at the lower of cost and net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable cost of completion, disposal and transportation. The update eliminated the requirement to subsequently measure inventory at the lower of cost or market, which could be replacement cost, net realizable value, or net realizable value less an approximately normal profit margin. The adoption of this update did not impact our condensed consolidated financial statements.

Standards not yet adopted

Revenue Recognition

In May 2014, the FASB and the International Accounting Standards Board (IASB) issued a comprehensive new revenue recognition standard that will supersede existing revenue recognition guidance under U.S. GAAP and International Financial Reporting Standards (IFRS). The issuance of this guidance completes the joint effort by the FASB and the IASB to improve financial reporting by creating common revenue recognition guidance for U.S. GAAP and IFRS. This new revenue recognition standard will be effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period.

The core principle of the new guidance is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. The standard creates a five step model that requires companies to exercise judgment when considering the terms of a contract and all relevant facts and circumstances. The standard allows for several transition methods: (a) a full retrospective adoption in which the standard is applied to all of the periods presented, or (b) a modified retrospective adoption in which the standard is applied only to the most current period presented in the financial statements, including additional disclosures of the standard’s application impact to individual financial statement line items.

We are currently determining the impacts of the new standard on our contract portfolio. Our approach includes performing a detailed review of key contracts representative of our different businesses and comparing historical accounting policies and practices to the new standard. Because the standard will impact our business processes, systems and controls, we are also developing a comprehensive change management project plan to guide the implementation. Our services are primarily short-term in nature, and our assessment at this stage is that we do not expect the new revenue recognition standard will have a material impact on our financial statements upon adoption. We are still evaluating software contracts within our Landmark Software and Services product service line and long-term contracts requiring integrated project management services within our Consulting and Project Management product service line for potential impact from the new accounting guidance. We currently intend on adopting the new standard utilizing the modified retrospective method that will result in a cumulative effect adjustment as of January 1, 2018.

Leases

In February 2016, the FASB issued an accounting standards update related to accounting for leases, which requires the assets and liabilities that arise from leases to be recognized on the balance sheet. Currently only capital leases are recorded on the balance sheet. This update will require the lessee to recognize a lease liability equal to the present value of the lease payments and a right-of-use asset representing its right to use the underlying asset for the lease term for all leases longer than 12 months. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and liabilities and recognize the lease expense for such leases generally on a straight-line basis over the lease term. This update will be effective for fiscal periods beginning after December 15, 2018, including interim periods within that reporting period. Early adoption is permitted. We are currently evaluating the impact that this update will have on our condensed consolidated financial statements.