v3.7.0.1

Financing Components of Debt (Detail) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016	Jun. 20, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Long-term borrowings, carrying value	$ 3,262.7	$ 3,358.0		$ 0.0
Commercial Paper [Member]
Debt Instrument [Line Items]
Long-term borrowings, carrying value		374.8
US Dollar-Denominated Commercial Paper [Member] | Commercial Paper [Member]
Debt Instrument [Line Items]
Long-term borrowings, carrying value	118.5	347.9
Euro Denominated Commercial Paper [Member] | Commercial Paper [Member]
Debt Instrument [Line Items]
Long-term borrowings, carrying value	160.3	26.8
1.80% Senior Unsecured Notes due 2019 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Long-term borrowings, carrying value	$ 298.4	298.3
Debt Instrument, Interest Rate, Stated Percentage	1.80%		1.80%
2.35% Senior Unsecured Notes due 2021 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Long-term borrowings, carrying value	$ 745.1	744.8
Debt Instrument, Interest Rate, Stated Percentage	2.35%		2.35%
3.15% Senior Unsecured Notes due 2026 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Long-term borrowings, carrying value	$ 890.4	890.1
Debt Instrument, Interest Rate, Stated Percentage	3.15%		3.15%
4.30% Senior Unsecured Notes due 2046 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Long-term borrowings, carrying value	$ 546.8	546.8
Debt Instrument, Interest Rate, Stated Percentage	4.30%		4.30%
Other Debt [Member]
Debt Instrument [Line Items]
Long-term borrowings, carrying value	$ 3.2	3.3
Term Loan [Member]
Debt Instrument [Line Items]
Long-term borrowings, carrying value	$ 500.0	$ 500.0	$ 500.0
Debt Instrument, Interest Rate, Stated Percentage		1.87%

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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+ References

No definition available.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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