Debt - Summary of Debt (Detail) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Commercial paper	$ 0.0	$ 0.0
Receivables facilities	438.2	187.4
Other debt	68.8	73.3
Total debt	11,184.6	11,892.8
Debt
Total debt	11,184.6	11,892.8
Short-term debt and current portion of long-term debt	(852.5)	(601.9)
LONG-TERM DEBT	10,332.1	11,290.9
2.05% Senior Notes Due 2017 [Member]
Debt Instrument [Line Items]
Total Debt	349.5	349.4
6.25% Senior Notes Due 2018 [Member]
Debt Instrument [Line Items]
Total Debt	186.4	249.8
2.15% Senior Notes Due 2018 [Member]
Debt Instrument [Line Items]
Total Debt	299.1	298.9
2.60% Senior Notes Due 2019 [Member]
Debt Instrument [Line Items]
Total Debt	266.2	995.0
2.875% Senior Notes Due 2019 [Member]
Debt Instrument [Line Items]
Total Debt	348.1	347.9
4.70% Senior Notes Due 2020 [Member]
Debt Instrument [Line Items]
Total Debt	304.1	380.0
3.15% Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Total Debt	992.2	991.7
3.75% Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Total Debt	338.6	326.9
4.00% Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Total Debt	248.6	248.5
3.85% Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Total Debt	1,737.4	1,737.0
5.00% Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Total Debt	313.6	314.1
4.00% Senior Notes Due 2024 [Member]
Debt Instrument [Line Items]
Total Debt	495.4	495.2
3.90% Senior Notes Due 2025 [Member]
Debt Instrument [Line Items]
Total Debt	296.9	296.8
4.20% Senior Notes Due 2026 [Member]
Debt Instrument [Line Items]
Total Debt	1,981.4	1,981.0
5.375% Senior Notes Due 2036 [Member]
Debt Instrument [Line Items]
Total Debt	494.8	494.7
5.50% Senior Notes Due 2046 [Member]
Debt Instrument [Line Items]
Total Debt	1,725.7	1,725.7
Term Loan [Member]
Debt Instrument [Line Items]
Total Debt	$ 299.6	$ 399.5