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Financing Arrangements and Derivative Financial Instruments - Notes and Credit Facilities Narrative (Details) |  | 1 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 27, 2019 EUR (€) | Mar. 31, 2018 | Jun. 30, 2019 USD ($) | Jun. 30, 2019 EUR (€) | Dec. 31, 2018 USD ($) | Dec. 31, 2018 EUR (€) | Oct. 18, 2018 EUR (€)
Debt Instrument [Line Items] |  |  |  |  |  |  |
Notes payable |  |  | $ 3,314,000,000 |  | $ 3,314,000,000 |  |
Long-term debt, before deferred financing fees |  |  | 6,040,000,000 |  | 5,352,000,000 |  |
Long-Term debt and finance leases due within one year |  |  | 491,000,000 |  | 243,000,000 |  |
Credit arrangements, unused amount |  |  | 2,525,000,000 |  |  |  |
Short-term debt |  |  | 480,000,000 |  | 410,000,000 |  |
$2.0 Billion First Lien Revolving Credit Facility due 2021 | Line of Credit |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum borrowing capacity |  |  | 2,000,000,000.0 |  |  |  |
Additional borrowing capacity which may be requested |  |  | 250,000,000 |  |  |  |
$2.0 Billion First Lien Revolving Credit Facility due 2021 | Line of Credit | Letter of Credit |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum borrowing capacity |  |  | 800,000,000 |  |  |  |
Letters of credit outstanding |  |  | $ 37,000,000 |  | 37,000,000 |  |
$2.0 Billion First Lien Revolving Credit Facility due 2021 | Line of Credit | Letter of Credit | LIBOR |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  |  | 1.25% |  |  |  |
$2.0 Billion First Lien Revolving Credit Facility due 2021 | Line of Credit | Revolving Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Annual commitment fee on undrawn amounts |  |  | 0.30% |  |  |  |
Maximum borrowing base increase based on value of certain cash |  |  | $ 200,000,000 |  |  |  |
Borrowing base amount below stated amount |  |  | 287,000,000 |  |  |  |
Long-term debt, before deferred financing fees |  |  | 430,000,000 |  | 0 |  |
Second lien term loan facility due 2025 | Line of Credit | Secured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, before deferred financing fees |  |  | $ 400,000,000 |  | 400,000,000 |  |
Leverage ratio threshold |  |  | 1.25 | 1.25 |  |  |
Debt instrument, optional reduction of basis spreads on variable rates |  | 0.25% |  |  |  |  |
Second lien term loan facility due 2025 | Line of Credit | Secured Debt | LIBOR |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  | 2.00% |  |  |  |  |
Debt instrument, basis spread on reference rate |  | 1.00% |  |  |  |  |
Second lien term loan facility due 2025 | Line of Credit | Secured Debt | Alternative Base Rate |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  | 1.00% |  |  |  |  |
Second lien term loan facility due 2025 | Line of Credit | Secured Debt | Federal Funds Rate |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument, basis spread on reference rate |  | 0.50% |  |  |  |  |
European Revolving Credit Facility | Line of Credit | Letter of Credit |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum borrowing capacity | € | € 75,000,000 |  |  |  |  |  |
Letters of credit outstanding |  |  | $ 0 |  | 0 |  |
European Revolving Credit Facility | Line of Credit | Revolving Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum borrowing capacity | € | 800,000,000 |  |  | € 800,000,000 |  | € 550,000,000 |
Additional borrowing capacity which may be requested | € | € 200,000,000 |  |  |  |  |  |
Basis spread reduction | 0.25% |  |  |  |  |  |
Commitment fee percentage reduction | 0.05% |  |  |  |  |  |
Long-term debt, before deferred financing fees |  |  | 220,000,000 |  | 0 |  |
Commitment fee percentage | 0.25% |  |  |  |  |  |
Amount outstanding |  |  |  |  | 0 |  |
European Revolving Credit Facility | Line of Credit | Revolving Credit Facility | LIBOR |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate | 1.50% |  |  |  |  |  |
European Revolving Credit Facility | Line of Credit | Revolving Credit Facility | EURIBOR |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate | 1.50% |  |  |  |  |  |
European Revolving Credit Facility | Line of Credit | German Tranche |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum borrowing capacity | € | € 180,000,000 |  |  |  |  |  |
Amount outstanding |  |  | 100,000,000 | 88,000,000 |  |  |
European Revolving Credit Facility | Line of Credit | All-borrower Tranche |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum borrowing capacity | € | 620,000,000 |  |  |  |  |  |
Amount outstanding |  |  | 120,000,000 | 105,000,000 |  |  |
European Revolving Credit Facility | Line of Credit | Swingline Loan |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum borrowing capacity | € | € 175,000,000 |  |  |  |  |  |
Pan-European Accounts Receivable Facility | Line of Credit | Secured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum borrowing capacity | € |  |  |  |  |  |  | € 320,000,000
Long-term debt, before deferred financing fees |  |  | 266,000,000 |  | 335,000,000 |  |
Current borrowing capacity |  |  | 266,000,000 | 234,000,000 | 335,000,000 | € 293,000,000 |
Pan-European Accounts Receivable Facility | Line of Credit | Secured Debt | Minimum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum borrowing capacity | € |  |  |  | 30,000,000 |  |  |
Pan-European Accounts Receivable Facility | Line of Credit | Secured Debt | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum borrowing capacity | € |  |  |  | € 450,000,000 |  |  |
Accounts Receivable Factoring Facilities | Secured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Off-balance sheet receivables sold |  |  | 582,000,000 |  | 568,000,000 |  |
Mexican credit facilities | Line of Credit | Foreign Line of Credit |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, before deferred financing fees |  |  | 290,000,000 |  | 200,000,000 |  |
Current borrowing capacity |  |  |  |  | 340,000,000 |  |
Long-Term debt and finance leases due within one year |  |  | 90,000,000 |  | 0 |  |
Chinese Credit Facilities | Secured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum borrowing capacity |  |  | 704,000,000 |  | 672,000,000 |  |
Long-Term debt and finance leases due within one year |  |  | 78,000,000 |  | 32,000,000 |  |
Credit arrangements, unused amount |  |  | 109,000,000 |  | 116,000,000 |  |
Amount outstanding |  |  | 361,000,000 |  | 341,000,000 |  |
Chinese Credit Facilities | Foreign Line of Credit | Line of Credit |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Short-term debt |  |  | 151,000,000 |  | 122,000,000 |  |
Chinese Credit Facilities | Line of Credit | Foreign Line of Credit |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, before deferred financing fees |  |  | 210,000,000 |  | 219,000,000 |  |
Long-Term debt and finance leases due within one year |  |  | $ 78,000,000 |  | $ 32,000,000 |  |

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