XML 36 R18.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Other Long-Term Assets, Net | 12 Months Ended
--- | ---
Dec. 31, 2017
Other Assets [Abstract] |
Other Long-Term Assets, Net | Other Long-Term Assets, Net Other long-term assets, net of accumulated amortization, consisted of the following (in millions):
| December 31,
| 2017 |  | 2016
Intangible assets (1) | $ | 1,265 |  |  | $ | 603 |
Other | 60 |  |  | 48 |
| 1,325 |  |  | 651 |
Accumulated amortization | (421 | ) |  | (361 | )
| $ | 904 |  |  | $ | 290 |
(1) | We include rights-of-way, which are intangible assets, in our pipeline and related facilities amounts within property and equipment. See Note 5 for a discussion of property and equipment.
The increase in intangible assets for the year ended December 31, 2017 was primarily due to acreage dedication contracts and associated customer relationships associated with our ACC Acquisition. See Note 6 for additional information. Amortization expense for finite-lived intangible assets for the years ended December 31, 2017, 2016 and 2015 was $54 million, $44 million and $49 million, respectively. Intangible assets that have finite lives are tested for impairment when events or circumstances indicate that the carrying value may not be recoverable. We did not recognize any impairments of finite-lived intangible assets during the three years ended December 31, 2017. Our intangible assets that have finite lives consisted of the following (in millions):
|  |  | December 31, 2017 |  | December 31, 2016
| Estimated Useful Lives (Years) |  | Cost |  | Accumulated Amortization |  | Net |  | Cost |  | Accumulated Amortization |  | Net
Customer contracts and relationships | 1 – 20 |  | $ | 1,188 |  |  | $ | (383 | ) |  | $ | 805 |  |  | $ | 529 |  |  | $ | (330 | ) |  | $ | 199 |
Property tax abatement | 7 – 13 |  | 38 |  |  | (30 | ) |  | 8 |  |  | 38 |  |  | (26 | ) |  | 12 |
Other agreements | 25 – 70 |  | 39 |  |  | (8 | ) |  | 31 |  |  | 36 |  |  | (5 | ) |  | 31 |
|  |  | $ | 1,265 |  |  | $ | (421 | ) |  | $ | 844 |  |  | $ | 603 |  |  | $ | (361 | ) |  | $ | 242 |
We estimate that our amortization expense related to finite-lived intangible assets for the next five years will be as follows (in millions):
2018 | $ | 63 |
2019 | $ | 68 |
2020 | $ | 74 |
2021 | $ | 75 |
2022 | $ | 76 |

X
- References No definition available. + Details
Name: | us-gaap_OtherAssetsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for other assets. This disclosure includes other current assets and other noncurrent assets. + References No definition available. + Details
Name: | us-gaap_OtherAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration