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Debt (Summary Of Outstanding Debt) (Details) - USD ($) $ in Millions |  |  |  |  |  |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 01, 2046 | Apr. 01, 2036 | Apr. 01, 2026 | Nov. 01, 2023 | Apr. 01, 2023 | Oct. 01, 2021 | Apr. 01, 2021 | Mar. 29, 2019 | Apr. 15, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes |  |  |  |  |  |  |  |  |  |  | $ 11,234.1 | $ 2,692.6 |
Debt Mark To Market Adjustment |  |  |  |  |  |  |  |  |  |  | (5.9) | (3.1) |
Deferred Gain (Loss) on Discontinuation of Interest Rate Fair Value Hedge |  |  |  |  |  |  |  |  |  |  | 7.2 | 12.9 |
Loans Payable to Bank, Noncurrent |  |  |  |  |  |  |  |  |  |  | 399.5 | 0.0 |
Commercial Paper |  |  |  |  |  |  |  |  |  |  | 0.0 | 0.0 |
Receivables facility |  |  |  |  |  |  |  |  |  |  | 187.4 | 350.0 |
Other debt |  |  |  |  |  |  |  |  |  |  | 70.5 | 33.8 |
Total debt |  |  |  |  |  |  |  |  |  |  | 11,892.8 | 3,057.9 |
Short-term debt and current portion of long-term debt |  |  |  |  |  |  |  |  |  |  | (601.9) | (388.8) |
Long-term debt |  |  |  |  |  |  |  |  |  |  | 11,290.9 | 2,669.1 |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | [1] |  |  |  |  |  |  |  |  |  | (198.0) | (153.3) | $ (126.3)
2.05% Senior Notes Due 2017 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes |  |  |  |  |  |  |  |  |  |  | 349.4 | 348.7 |
6.25% senior notes due 2018 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes |  |  |  |  |  |  |  |  |  |  | 249.8 | 249.7 |
2.15% senior notes due 2018 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes |  |  |  |  |  |  |  |  |  |  | 298.9 | 298.3 |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  | $ 300.0 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  | 2.15% |  |
Debt Instrument, Maturity Date |  |  |  |  |  |  |  |  |  |  | Oct. 15, 2018 |  |
2.60% Senior Notes due 2019 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes |  |  |  |  |  |  |  |  |  |  | $ 995.0 | 0.0 |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  | $ 1,000.0 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  | 2.60% |  |
Debt Instrument, Maturity Date |  |  |  |  |  |  |  |  | Mar. 29, 2019 |  |  |  |
2.875% senior notes due 2019 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes |  |  |  |  |  |  |  |  |  |  | $ 347.9 | 347.2 |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  | $ 350.0 |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  | 2.875% |
Debt Instrument, Maturity Date |  |  |  |  |  |  |  |  |  |  |  | Dec. 01, 2019 |
4.70% senior notes due 2020 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes |  |  |  |  |  |  |  |  |  |  | $ 380.0 | $ 379.7 |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 550.0
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  | 4.70% |  | 4.70%
Debt Instrument, Maturity Date |  |  |  |  |  |  |  |  |  |  |  |  | Aug. 15, 2020
3.15% Senior Notes due 2021 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes |  |  |  |  |  |  |  |  |  |  | $ 991.7 | 0.0 |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  | $ 1,000.0 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  | 3.15% |  |
Debt Instrument, Maturity Date |  |  |  |  |  |  |  | Apr. 01, 2021 |  |  |  |  |
3.75% Senior Exchange Notes due 2021 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes |  |  |  |  |  |  |  |  |  |  | $ 326.9 | 0.0 |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  | $ 300.0 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  | 3.75% |  |  |
Debt Instrument, Maturity Date |  |  |  |  |  |  | Oct. 01, 2021 |  |  |  |  |  |
Newell Exchange Notes |  |  |  |  |  |  |  |  |  | $ 271.9 |  |  |
4.00% Senior Notes Due 2022 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes |  |  |  |  |  |  |  |  |  |  | 248.5 | 248.2 |
3.85% Senior Notes due 2023 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes |  |  |  |  |  |  |  |  |  |  | 1,737.0 | 0.0 |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  | $ 1,750.0 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  | 3.85% |  |
Debt Instrument, Maturity Date |  |  |  |  |  | Apr. 01, 2023 |  |  |  |  |  |  |
5% Senior Exchange Notes due 2023 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes |  |  |  |  |  |  |  |  |  |  | $ 314.1 | 0.0 |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  | $ 300.0 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  | 5.00% |  |  |
Debt Instrument, Maturity Date |  |  |  |  | Nov. 01, 2023 |  |  |  |  |  |  |  |
Newell Exchange Notes |  |  |  |  |  |  |  |  |  | $ 295.1 |  |  |
4.00% Senior Notes Due 2024 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes |  |  |  |  |  |  |  |  |  |  | 495.2 | $ 494.6 |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  | $ 500.0 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  | 4.00% | 4.00% |
Debt Instrument, Maturity Date |  |  |  |  |  |  |  |  |  |  | Dec. 01, 2024 |  |
3.90% Senior Notes Due 2025 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes |  |  |  |  |  |  |  |  |  |  | $ 296.8 | $ 296.4 |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  | $ 300.0 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  | 3.90% |  |
Debt Instrument, Maturity Date |  |  |  |  |  |  |  |  |  |  | Oct. 15, 2025 |  |
4.20% Senior Notes due 2026 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes |  |  |  |  |  |  |  |  |  |  | $ 1,981.0 | 0.0 |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  | $ 2,000.0 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  | 4.20% |  |
Debt Instrument, Maturity Date |  |  |  | Apr. 01, 2026 |  |  |  |  |  |  |  |  |
6.11% senior notes due 2028 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes |  |  |  |  |  |  |  |  |  |  | $ 1.5 | 1.5 |
5.375% Senior Notes due 2036 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Notes |  |  |  |  |  |  |  |  |  |  | 494.7 | 0.0 |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  | $ 500.0 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  | 5.375% |  |
Debt Instrument, Maturity Date |  |  | Apr. 01, 2036 |  |  |  |  |  |  |  |  |  |
5.5% Senior Notes due 2046 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Notes |  |  |  |  |  |  |  |  |  |  | $ 1,725.7 | $ 0.0 |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  | $ 1,750.0 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  | 5.50% |  |
Debt Instrument, Maturity Date |  | Apr. 01, 2046 |  |  |  |  |  |  |  |  |  |  |
[1] | Includes foreign exchange (losses) gains of $(23.3) million, $(22.9) million and $(29.6) million during 2016, 2015 and 2014, respectively, associated with intercompany loans designated as long-term.

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