8. GOODWILL AND OTHER INTANGIBLE ASSETS

Goodwill

The changes in the carrying amount of goodwill for the three months ended March 31, 2017 are as follows (in millions):




Balance as of December 31, 2016	$	6,521
Goodwill acquired as part of acquisitions during current year		1
Consideration and purchase price allocation adjustments
for prior year’s acquisitions and other adjustments		(3)
Goodwill allocated to hospitals held for sale		(192)
Balance as of March 31, 2017	$	6,327

Goodwill is allocated to each identified reporting unit, which is defined as an operating segment or one level below the operating segment (referred to as a component of the entity). Management has determined that the Company’s hospital operating segment meets the criteria to be classified as a single reporting unit. At March 31, 2017, the Company had approximately $6.3 billion of goodwill recorded, all of which resides at its hospital operations reporting unit.

Goodwill is evaluated for impairment at the same time every year and when an event occurs or circumstances change that, more likely than not, reduce the fair value of the reporting unit below its carrying value. There is a two-step method for determining goodwill impairment. Step one is to compare the fair value of the reporting unit with the unit’s carrying amount, including goodwill. If this test indicates the fair value is less than the carrying value, then step two is required to compare the implied fair value of the reporting unit’s goodwill utilizing a hypothetical purchase price allocation with the carrying value of the reporting unit’s goodwill. The Company performed its last annual goodwill evaluation during the fourth quarter of 2016. No impairment was indicated by this evaluation. The next annual goodwill evaluation will be performed during the fourth quarter of 2017, or sooner if the Company identifies certain indicators of impairment.

While no impairment was indicated by the fourth quarter of 2016 evaluation, the reduction in the Company’s fair value and the resulting goodwill impairment charge recorded during 2016 reduced the excess of fair value calculated in the step two analysis over the carrying value of the Company’s hospital operations reporting unit to an amount less than 1% of the Company’s carrying value. This minimal amount in the excess fair value over carrying value of the hospital operations reporting unit increases the risk that future declines in fair value could result in goodwill impairment. The determination of fair value in the Company’s goodwill impairment analysis is based on an estimate of fair value for each reporting unit utilizing known and estimated inputs at the evaluation date. Some of those inputs include, but are not limited to, the most recent price of the Company’s common stock or fair value of long-term debt, estimates of future revenue and expense growth, estimated market multiples expected capital expenditures, income tax rates, and costs of invested capital. Future estimates of fair value could be adversely affected if the actual outcome of one or more of these assumptions changes materially in the future, including further decline in the Company’s stock price or fair value of long-term debt, lower than expected hospital volumes, or increased operating costs. Such changes impacting the calculation of fair value could result in a material impairment charge in the future.

The Company estimates the fair value of the related reporting units using both a discounted cash flow model as well as a market multiple model. The cash flow forecasts are adjusted by an appropriate discount rate based on the Company’s estimate of a market participant’s weighted-average cost of capital. These models are both based on the Company’s best estimate of future revenues and operating costs and are reconciled to the Company’s consolidated market capitalization, with consideration of the amount a potential acquirer would be required to pay, in the form of a control premium, in order to gain sufficient ownership to set policies, direct operations and control management decisions.

During the three months ended June 30, 2016, the Company identified certain indicators of impairment requiring an interim goodwill impairment evaluation. Those indicators were primarily the decline in the Company’s market capitalization and fair value of long-term debt during the three months ended June 30, 2016, as well as a decrease in the estimated future earnings of the Company compared to the Company’s most recent annual evaluation. The Company performed an estimated calculation of fair value in step one of the impairment test at June 30, 2016, which indicated that the carrying value of its hospital operations reporting unit exceeded its fair value. An initial step two calculation was performed to determine the implied value of goodwill in a hypothetical purchase price allocation. The Company recorded an estimated non-cash impairment charge of $1.4 billion to goodwill at June 30, 2016 based on these analyses, and adjusted the estimated impairment charge based on the final step two valuation of $1.395 billion at September 30, 2016. The decrease in the goodwill impairment as of September 30, 2016, from the original estimate as of June 30, 2016, was primarily due to lower estimated fair values of the individual hospital property and equipment assets as compared to the assumptions used in the June 30, 2016 estimate, resulting in a higher implied goodwill amount when applied to a hypothetical purchase price allocation as required in the step two analysis. This impairment charge taken during 2016 represents the cumulative amount of impairment recorded historically on the Company’s goodwill.

The determination of fair value of the Company’s hospital operations reporting unit represents a Level 3 fair value measurement in the fair value hierarchy due to its use of internal projections and unobservable measurement inputs.

These impairment charges do not have an impact on the calculation of the Company’s financial covenants under the Company’s Credit Facility.

Intangible Assets

No intangible assets other than goodwill were acquired during the three months ended March 31, 2017. The gross carrying amount of the Company’s other intangible assets subject to amortization was $18 million at March 31, 2017 and $41 million at December 31, 2016, respectively, and the net carrying amount was $13 million at March 31, 2017 and $14 million at December 31, 2016, respectively. The carrying amount of the Company’s other intangible assets not subject to amortization was $79 million at March 31, 2017 and $86 million at December 31, 2016, respectively. Other intangible assets are included in other assets, net on the Company’s condensed consolidated balance sheets. Substantially all of the Company’s intangible assets are contract-based intangible assets related to operating licenses, management contracts, or non-compete agreements entered into in connection with prior acquisitions.

The weighted-average remaining amortization period for the intangible assets subject to amortization is approximately six years. There are no expected residual values related to these intangible assets. Amortization expense on these intangible assets was $2 million and $4 million during the three months ended March 31, 2017 and 2016, respectively. Amortization expense on intangible assets is estimated to be $3 million for the remainder of 2017, $3 million in 2018, $2 million in 2019, $1 million in 2020, $1 million in 2021, $1 million in 2022 and $2 million thereafter.

The gross carrying amount of capitalized software for internal use was approximately $1.4 billion at March 31, 2017 and $1.3 billion at December 31, 2016, and the net carrying amount was approximately $585 million at March 31, 2017 and $574 million at December 31, 2016. The estimated amortization period for capitalized internal-use software is generally three years, except for capitalized costs related to significant system conversions, which is generally eight to ten years. There is no expected residual value for capitalized internal-use software. At March 31, 2017, there was approximately $49 million of capitalized costs for internal-use software that is currently in the development stage and will begin amortization once the software project is complete and ready for its intended use. Amortization expense on capitalized internal-use software was $49 million and $55 million during the three months ended March 31, 2017 and 2016, respectively. Amortization expense on capitalized internal-use software is estimated to be $152 million for the remainder of 2017, $140 million in 2018, $92 million in 2019, $58 million in 2020, $52 million in 2021, $38 million in 2022 and $53 million thereafter.