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