XML 21 R68.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Debt - Summary of Debt (Non-Printing) (Detail) | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Oct. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Nov. 30, 2019 | Aug. 31, 2019 | Mar. 31, 2019
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  |  |  | 3.85% |
2.60% senior notes due 2019 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  | 2.60% | 2.60% |  |  | 2.60%
Maturity year |  | 2019 | 2019 |  |  |
4.70% senior notes due 2020 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  | 4.70% | 4.70% |  |  |
Maturity year |  | 2020 | 2020 |  |  |
3.15% senior notes due 2021 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  | 3.15% | 3.15% |  |  |
Maturity year |  | 2021 | 2021 |  |  |
3.75% senior notes due 2021 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  | 3.75% | 3.75% |  |  |
Maturity year |  | 2021 | 2021 |  |  |
4.00% senior notes due 2022 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  | 4.00% | 4.00% |  |  |
Maturity year |  | 2022 | 2022 |  |  |
3.85% senior notes due 2023 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  | 3.85% | 3.85% |  |  |
Maturity year |  | 2023 | 2023 |  |  |
5.00% senior notes due 2023 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  | 5.00% | 5.00% | 5.00% |  |
Maturity year |  | 2023 | 2023 |  |  |
4.00% senior notes due 2024 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  | 4.00% | 4.00% |  | 4.00% |
Maturity year |  | 2024 | 2024 |  |  |
3.90% senior notes due 2025 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  | 3.90% | 3.90% |  | 3.90% |
Maturity year |  | 2025 | 2025 |  |  |
4.20% senior notes due 2026 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate | 4.20% | 4.20% | 4.20% |  |  |
Maturity year | 2026 | 2026 | 2026 |  |  |
5.375% senior notes due 2036 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  | 5.375% | 5.375% |  |  |
Maturity year |  | 2036 | 2036 |  |  |
5.50% senior notes due 2046 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  | 5.50% | 5.50% |  |  |
Maturity year |  | 2046 | 2046 |  |  |

X
- Definition Debt instruments maturity year. + References No definition available. + Details
Name: | nwl_Debtinstrumentsmaturityyear
Namespace Prefix: | nwl_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nwl_A2.60SeniorNotesdue2019Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nwl_A470SeniorNotesDue2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nwl_A3.15SeniorNotesdue2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nwl_A3.75SeniorExchangeNotesdue2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nwl_A400SeniorNotesDue2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nwl_A3.85SeniorNotesdue2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nwl_A5SeniorExchangeNotesdue2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nwl_A4.00SeniorNotesDue2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nwl_A3.90SeniorNotesDue2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nwl_A4.20SeniorNotesdue2026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nwl_A5.375SeniorNotesdue2036Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nwl_A5.5SeniorNotesdue2046Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |