Significant Accounting Policies (Policy)	9 Months Ended
Sep. 30, 2019
Significant Accounting Policies [Abstract]
Leases	Leases We determine if an arrangement is a lease at inception. We recognize an ROU asset and lease liability for all leases with terms of 12 months or more. ROU assets represent our right to use an underlying asset for the lease term, and lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and lease liabilities are recognized at commencement date based on the present value of lease payments over the lease term. Our lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. We use the implicit rate when readily determinable. The operating lease ROU asset is recorded net of lease incentives. Lease expense for operating lease payments is recognized on a straight-line basis over the lease term. We have lease agreements with lease and non-lease components, which are accounted for separately for our real estate leases. See Note 5 to the accompanying condensed consolidated and combined financial statements for information related to our leases.
Adoption Of New Accounting Standards	Adoption of New Accounting Standards In February 2016, the FASB issued ASU 2016-02, which is the final standard on accounting for leases. While both lessees and lessors are affected by the new guidance, the effects on lessees are much more significant. The most significant change for lessees is the requirement under the new guidance to recognize ROU assets and lease liabilities for all leases. The lease liability represents the lessee’s obligation to make lease payments arising from a lease and is measured as the present value of the lease payments. The ROU asset represents the lessee’s right to use a specified asset for the lease term and will be measured at the lease liability amount, adjusted for lease prepayment, lease incentives received and the lessee’s initial direct costs. We adopted ASC 842 effective January 1, 2019. We utilized the permitted alternative transition method, which removed the requirement that the financial statements of prior periods be restated. There was no cumulative effect adjustment recorded to beginning equity as a result of our adoption of this standard. We also elected the package of practical expedients permitted under the transition guidance, which allowed us to carry forward our historical lease classification, our assessment on whether expired or existing contracts were or contained a lease and our initial direct costs for any leases that existed prior to adoption of the new standard. In addition, we have elected the practical expedients that allow us, by class of underlying asset, to not separate lease and non-lease components and to not recognize ROU assets and lease liabilities for leases with lease terms of 12 months or less. This standard had a material impact on our condensed consolidated statements of financial position but did not have an impact on our condensed consolidated and combined statements of operations and comprehensive income or condensed consolidated and combined statements of cash flows. The most significant impact was the recognition of ROU assets and lease liabilities of approximately $24 million for operating leases, while our accounting for finance leases remained unchanged.
Accounting Standards Issued But Not Yet Effective	Accounting Standards Issued but Not Yet Effective In June 2016, the FASB issued ASU 2016-13, which requires earlier recognition of credit losses while also providing additional transparency about credit risk. Further, the new credit loss model utilizes a lifetime expected credit loss measurement objective for the recognition of credit losses at the time the financial asset is originated or acquired. The expected credit losses are adjusted each period for changes in expected lifetime credit losses. We plan to adopt this standard and related amendments on its effective date of January 1, 2020 and are currently evaluating its impact on our consolidated financial statements and related disclosures. In August 2018, the FASB issued ASU 2018-15, which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. We plan to adopt this standard on its effective date of January 1, 2020 and are currently evaluating its impact on our consolidated financial statements and related disclosures.

Significant Accounting Policies (Policy)

9 Months Ended

Sep. 30, 2019

Significant Accounting Policies [Abstract]

We determine if an arrangement is a lease at inception. We recognize an ROU asset and lease liability for all leases with terms of 12 months or more. ROU assets represent our right to use an underlying asset for the lease term, and lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and lease liabilities are recognized at commencement date based on the present value of lease payments over the lease term. Our lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. We use the implicit rate when readily determinable. The operating lease ROU asset is recorded net of lease incentives. Lease expense for operating lease payments is recognized on a straight-line basis over the lease term. We have lease agreements with lease and non-lease components, which are accounted for separately for our real estate leases. See Note 5 to the accompanying condensed consolidated and combined financial statements for information related to our leases.

Adoption Of New Accounting Standards

Adoption of New Accounting Standards

In February 2016, the FASB issued ASU 2016-02, which is the final standard on accounting for leases. While both lessees and lessors are affected by the new guidance, the effects on lessees are much more significant. The most significant change for lessees is the requirement under the new guidance to recognize ROU assets and lease liabilities for all leases. The lease liability represents the lessee’s obligation to make lease payments arising from a lease and is measured as the present value of the lease payments. The ROU asset represents the lessee’s right to use a specified asset for the lease term and will be measured at the lease liability amount, adjusted for lease prepayment, lease incentives received and the lessee’s initial direct costs.

We adopted ASC 842 effective January 1, 2019. We utilized the permitted alternative transition method, which removed the requirement that the financial statements of prior periods be restated. There was no cumulative effect adjustment recorded to beginning equity as a result of our adoption of this standard. We also elected the package of practical expedients permitted under the transition guidance, which allowed us to carry forward our historical lease classification, our assessment on whether expired or existing contracts were or contained a lease and our initial direct costs for any leases that existed prior to adoption of the new standard. In addition, we have elected the practical expedients that allow us, by class of underlying asset, to not separate lease and non-lease components and to not recognize ROU assets and lease liabilities for leases with lease terms of 12 months or less.

This standard had a material impact on our condensed consolidated statements of financial position but did not have an impact on our condensed consolidated and combined statements of operations and comprehensive income or condensed consolidated and combined statements of cash flows. The most significant impact was the recognition of ROU assets and lease liabilities of approximately $24 million for operating leases, while our accounting for finance leases remained unchanged.

Accounting Standards Issued But Not Yet Effective

Accounting Standards Issued but Not Yet Effective

In June 2016, the FASB issued ASU 2016-13, which requires earlier recognition of credit losses while also providing additional transparency about credit risk. Further, the new credit loss model utilizes a lifetime expected credit loss measurement objective for the recognition of credit losses at the time the financial asset is originated or acquired. The expected credit losses are adjusted each period for changes in expected lifetime credit losses. We plan to adopt this standard and related amendments on its effective date of January 1, 2020 and are currently evaluating its impact on our consolidated financial statements and related disclosures.

In August 2018, the FASB issued ASU 2018-15, which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. We plan to adopt this standard on its effective date of January 1, 2020 and are currently evaluating its impact on our consolidated financial statements and related disclosures.