(in millions)

Indefinite-lived

Finite-lived

Total

December 31, 2018

$

17,578

$

261

$

17,839

Amortization expense

—

(40

)

(40

)

Acquisition ⁽¹⁾

—

678

678

June 30, 2019

$

17,578

$

899

$

18,477

⁽¹⁾

^{In connection with the eFront Transaction, which closed on May 10, 2019, the Company acquired $452 million of finite-lived customer relationships, $205 million of finite-lived technology-related intangible assets and $21 million of a finite-lived trade name, with weighted-average estimated lives of approximately 11 years, eight years and five years, respectively. See Note 3, Acquisition, for information on the eFront Transaction.}