Restructuring	3 Months Ended
Mar. 31, 2018
Restructuring and Related Activities [Abstract]
Restructuring	Restructuring In 2014, we initiated a restructuring plan to invest in continuing innovation and the launch of our new pipeline molecules, while improving our cost structure. As part of the plan, we closed facilities in Washington State and Colorado and are reducing the number of buildings we occupy at our headquarters in Thousand Oaks, California, as well as at other locations. We estimate that we will incur $825 million to $900 million of pre-tax charges in connection with our restructuring, including: (i) separation and other headcount-related costs of $560 million to $600 million with respect to staff reductions and (ii) asset-related charges of $265 million to $300 million that consist primarily of asset impairments, accelerated depreciation and other related costs resulting from the consolidation of our worldwide facilities. Through March 31, 2018, we incurred a total of $558 million of separation costs and other headcount-related costs and $243 million of net asset-related charges. The amounts related to the restructuring recorded in the Condensed Consolidated Statements of Income during the three months ended March 31, 2018 and 2017, were not significant. As of March 31, 2018, the total restructuring liability was not significant.

Restructuring

In 2014, we initiated a restructuring plan to invest in continuing innovation and the launch of our new pipeline molecules, while improving our cost structure. As part of the plan, we closed facilities in Washington State and Colorado and are reducing the number of buildings we occupy at our headquarters in Thousand Oaks, California, as well as at other locations.

We estimate that we will incur $825 million to $900 million of pre-tax charges in connection with our restructuring, including: (i) separation and other headcount-related costs of $560 million to $600 million with respect to staff reductions and (ii) asset-related charges of $265 million to $300 million that consist primarily of asset impairments, accelerated depreciation and other related costs resulting from the consolidation of our worldwide facilities. Through March 31, 2018, we incurred a total of $558 million of separation costs and other headcount-related costs and $243 million of net asset-related charges.

The amounts related to the restructuring recorded in the Condensed Consolidated Statements of Income during the three months ended March 31, 2018 and 2017, were not significant. As of March 31, 2018, the total restructuring liability was not significant.