v3.10.0.1

Derivative Instruments (Fair Values of Derivative Assets and Liabilities) (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Assets:
Current	$ 385.3	$ 494.4
Long-term	1,836.0	1,633.3
June 30, 2018	2,221.3	2,127.7
Liabilities:
Current	392.7	223.3
Long-term	1,254.2	1,557.9
Total	1,646.9	1,781.2
Cross-currency and interest rate derivative contracts
Assets:
Current	371.6	477.0
Long-term	1,344.1	1,071.9
June 30, 2018	1,715.7	1,548.9
Liabilities:
Current	386.5	210.2
Long-term	1,254.1	1,557.7
Total	1,640.6	1,767.9
Equity-related derivative instruments:
Assets:
Current	0.0	0.0
Long-term	491.9	560.9
June 30, 2018	491.9	560.9
Liabilities:
Current	1.7	5.4
Long-term	0.0	0.0
Total	1.7	5.4
Foreign currency forward and option contracts
Assets:
Current	13.6	17.0
Long-term	0.0	0.1
June 30, 2018	13.6	17.1
Liabilities:
Current	4.5	7.7
Long-term	0.0	0.2
Total	4.5	7.9
Other
Assets:
Current	0.1	0.4
Long-term	0.0	0.4
June 30, 2018	0.1	0.8
Liabilities:
Current	0.0	0.0
Long-term	0.1	0.0
Total	$ 0.1	$ 0.0

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