Borrowings (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Schedule of short-term debt [Table Text Block]

Borrowings consist of the following:

	December 31, 2016		December 31, 2015
Short-term:
Current portion of long-term debt	$	6,950	$	122
Commercial paper	407,600		151,000
Total short-term debt	$	414,550	$	151,122

Borrowings [Table Text Block]

	December 31, 2016			December 31, 2015
Long-term:
5.45% 10-year notes due March 15, 2018	$	349,588		$	349,258
2.125% 7-year notes due December 1, 2020 (euro-denominated)	313,370			328,592
4.30% 10-year notes due March 1, 2021	449,891			449,865
3.150% 10-year notes due November 15, 2025	397,259			396,951
1.25% 10-year notes due November 9, 2026 (euro-denominated)	621,326			—
6.65% 30-year debentures due June 1, 2028	199,586			199,552
5.375% 30-year debentures due October 15, 2035	297,003			296,844
6.60% 30-year notes due March 15, 2038	248,124			248,036
5.375% 30-year notes due March 1, 2041	346,147			345,989
Other	829			2,255
Total long-term debt	3,223,123			2,617,342
Unamortized debt issuance costs	(16,486		)	(13,687		)
Total long-term debt, net of debt issuance costs	$	3,206,637		$	2,603,655

Schedule of interest expense and interest income [Table Text Block]

Interest expense and income for the years ended December 31, 2016, 2015 and 2014 were as follows:

	Years Ended December 31,
	2016			2015			2014
Interest expense	$	136,401		$	131,676		$	131,689
Interest income	(6,759		)	(4,419		)	(4,510		)
Interest expense, net	$	129,642		$	127,257		$	127,179

Scheduled maturities [Table Text Block]

As of December 31, 2016, the future maturities of long-term debt were as follows:

	Future Maturities
2017	$	6,950
2018	350,357
2019	—
2020	313,370
2021	449,891
2022 and thereafter	2,109,505
Total	$	3,230,073