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INTANGIBLE ASSETS (Tables) | 6 Months Ended
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Jun. 30, 2019
Intangible Assets [Abstract] |
Disclosure of detailed information about intangible assets |
| As of
US$ MILLIONS | June 30, 2019 |  | December 31, 2018
Cost | $ | 13,283 |  |  | $ | 12,515 |
Accumulated amortization | (1,128 | ) |  | (880 | )
Total | $ | 12,155 |  |  | $ | 11,635 |
Intangible assets are allocated to the following cash generating units:
| As of
US$ MILLIONS | June 30, 2019 |  | December 31, 2018
Brazilian regulated gas transmission operation | $ | 4,166 |  |  | $ | 4,211 |
North American residential energy infrastructure operation | 1,806 |  |  | 1,763 |
Australian regulated terminal | 1,757 |  |  | 1,766 |
Peruvian toll roads | 1,157 |  |  | 1,118 |
Chilean toll roads | 926 |  |  | 928 |
Indian toll roads(1) | 838 |  |  | 843 |
U.K. port operation | 271 |  |  | 273 |
Other(2) | 1,234 |  |  | 733 |
Total | $ | 12,155 |  |  | $ | 11,635 |
1. | Indian toll roads include $739 million of intangible assets at our investment in Simhapuri Expressway Ltd and Rayalseema Expressway Private Limited and $99 million at BIF India Holdings Pte Ltd.
2. | Other intangibles are comprised of customer contracts at our Australian port operation, contracted order book at our U.K. regulated distribution operation, and concession rights to our Brazilian electricity transmission operation as well as our cross country gas pipeline business in India.
Disclosure of reconciliation of changes in intangible assets and goodwill | The following table presents the accumulated amortization for Brookfield Infrastructure’s intangible assets:
| For the six-month period ended June 30
US$ MILLIONS | 2019 |  |  | 2018 |
Accumulated amortization at beginning of the period | $ | (880 | ) |  | $ | (576 | )
Amortization | (228 | ) |  | (173 | )
Foreign currency translation | (20 | ) |  | 62 |
Ending Balance | $ | (1,128 | ) |  | $ | (687 | )
The following table presents the change in the cost balance of intangible assets:
| For the six-month period ended June 30
US$ MILLIONS | 2019 |  |  | 2018 |
Cost at beginning of the period | $ | 12,515 |  |  | $ | 10,470 |
Additions through business combinations | 520 |  |  | 17 |
Additions, net of disposals | 57 |  |  | 32 |
Foreign currency translation | 191 |  |  | (964 | )
Ending Balance | $ | 13,283 |  |  | $ | 9,555 |

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