| Reconciliation of the change in goodwill |
Reconciliations of the changes in the carrying
value of goodwill during 2018 and 2017 follows (in millions).
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December 31, |
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2018 |
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2017 |
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Balance at beginning of year
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$ |
81,258 |
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$ |
79,486 |
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Acquisitions of businesses
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376 |
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1,545 |
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Other, including foreign currency translation
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(609 |
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227 |
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Balance at end of year
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$ |
81,025 |
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$ |
81,258 |
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| Schedule of intangible assets |
Our other intangible assets and related accumulated
amortization are summarized as follows (in millions).
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December 31, 2018 |
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December 31, 2017 |
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Gross carrying
amount |
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Accumulated
amortization |
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Gross carrying
amount |
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Accumulated
amortization |
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Insurance and other
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$ |
40,493 |
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$ |
8,994 |
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$ |
40,225 |
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$ |
7,707 |
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Railroad, utilities and energy
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1,011 |
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|
362 |
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|
988 |
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|
324 |
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$ |
41,504 |
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$ |
9,356 |
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$ |
41,213 |
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$ |
8,031 |
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Trademarks and trade names
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$ |
5,368 |
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$ |
750 |
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$ |
5,381 |
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$ |
692 |
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Patents and technology
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4,446 |
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|
2,790 |
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4,341 |
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2,493 |
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Customer relationships
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28,375 |
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4,573 |
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28,322 |
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3,722 |
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Other
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3,315 |
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1,243 |
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3,169 |
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|
1,124 |
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$ |
41,504 |
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$ |
9,356 |
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$ |
41,213 |
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$ |
8,031 |
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