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Segment and Geographic Reporting Geographic Information (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | [1] | Jun. 30, 2016 | [1] | Mar. 31, 2016 | [1] | Dec. 31, 2015 | Sep. 30, 2015 | [1] | Jun. 30, 2015 | [1] | Mar. 31, 2015 | [1] | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 3,965 | [1] | $ 3,904 | $ 4,094 | $ 3,548 | $ 3,340 | [1] | $ 3,720 | $ 3,979 | $ 3,565 | $ 15,511 | $ 14,604 | $ 18,072
Other revenues from operations |  |  |  |  |  |  |  |  |  |  | 1,958 | 1,386 | 1,250
Property, plant and equipment, net | 10,122 |  |  |  |  | 9,535 |  |  |  |  | 10,122 | 9,535 |
United States |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  | 10,489 | 9,672 | 13,086
Other revenues from operations |  |  |  |  |  |  |  |  |  |  | 1,886 | 1,304 | 1,169
Property, plant and equipment, net | 8,063 |  |  |  |  | 7,221 |  |  |  |  | 8,063 | 7,221 |
Germany |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  | 1,455 | 1,480 | 1,507
Other revenues from operations |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Property, plant and equipment, net | 458 |  |  |  |  | 464 |  |  |  |  | 458 | 464 |
Other geographical locations |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  | 3,567 | 3,452 | 3,479
Other revenues from operations |  |  |  |  |  |  |  |  |  |  | 72 | 82 | $ 81
Property, plant and equipment, net | $ 1,601 |  |  |  |  | $ 1,850 |  |  |  |  | $ 1,601 | $ 1,850 |
[1] | The comparability of our quarterly financial data is impacted by the acquisitions of certain businesses during both of the years December 31, 2016 and 2015 as discussed in Note 1, "Description of Business and Basis of Presentation."

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