Financing Arrangements and Derivative Financial Instruments - Long Term Debt and Finance Leases, Net of Unamortized Discounts, and Interest Rates (Details) - USD ($) $ in Millions	Sep. 30, 2020	Aug. 16, 2020	May 18, 2020	Dec. 31, 2019
Long-term Debt and Lease Obligation [Abstract]
Long-term debt, before deferred financing fees	$ 5,905			$ 5,094
Unamortized deferred financing fees	(34)			(28)
Total long term debt excluding capital leases	5,871			5,066
Finance lease obligations	248			249
Long-term debt and capital leases	6,119			5,315
Less portion due within one year	(411)			(562)
Long-term debt and capital leases, excluding current maturities	5,708			4,753
Other Foreign and Domestic Debt
Long-term Debt and Lease Obligation [Abstract]
Long-term debt, before deferred financing fees	881			661
Less portion due within one year	$ (395)			$ (187)
Interest rate	2.56%			4.02%
8.75% Due 2020 | Senior Notes
Long-term Debt and Lease Obligation [Abstract]
Long-term debt, before deferred financing fees	$ 0	$ 282		$ 280
Less portion due within one year	$ 0			$ (280)
Interest rate, stated percentage	8.75%	8.75%		8.75%
5.125% due 2023 | Senior Notes
Long-term Debt and Lease Obligation [Abstract]
Long-term debt, before deferred financing fees	$ 1,000			$ 1,000
Interest rate, stated percentage	5.125%			5.125%
3.75% Euro Notes due 2023 | Euro Notes
Long-term Debt and Lease Obligation [Abstract]
Long-term debt, before deferred financing fees	$ 293			$ 281
Interest rate, stated percentage	3.75%			3.75%
9.5% due 2025 | Senior Notes
Long-term Debt and Lease Obligation [Abstract]
Long-term debt, before deferred financing fees	$ 803			$ 0
Interest rate, stated percentage	9.50%		9.50%	9.50%
5% due 2026 | Senior Notes
Long-term Debt and Lease Obligation [Abstract]
Long-term debt, before deferred financing fees	$ 900			$ 900
Interest rate, stated percentage	5.00%			5.00%
4.875% due 2027 | Senior Notes
Long-term Debt and Lease Obligation [Abstract]
Long-term debt, before deferred financing fees	$ 700			$ 700
Interest rate, stated percentage	4.875%			4.875%
7% due 2028 | Senior Notes
Long-term Debt and Lease Obligation [Abstract]
Long-term debt, before deferred financing fees	$ 150			$ 150
Interest rate, stated percentage	7.00%			7.00%
First lien revolving credit facility due 2025 | Revolving Credit Facility | Line of Credit
Long-term Debt and Lease Obligation [Abstract]
Long-term debt, before deferred financing fees	$ 0			$ 0
Interest rate	0.00%			0.00%
Second lien term loan facility due 2025 | Senior Notes | Line of Credit
Long-term Debt and Lease Obligation [Abstract]
Long-term debt, before deferred financing fees	$ 400			$ 400
Interest rate	2.16%			3.97%
European revolving credit facility due 2024 | Revolving Credit Facility | Line of Credit
Long-term Debt and Lease Obligation [Abstract]
Long-term debt, before deferred financing fees	$ 100			$ 0
Interest rate	1.65%			0.00%
Pan-European accounts receivable facility | Senior Notes | Line of Credit
Long-term Debt and Lease Obligation [Abstract]
Long-term debt, before deferred financing fees	$ 270			$ 327
Interest rate	1.00%			0.98%
Mexican credit facility | Foreign Line of Credit | Line of Credit
Long-term Debt and Lease Obligation [Abstract]
Long-term debt, before deferred financing fees	$ 200			$ 200
Interest rate	2.43%			3.44%
Chinese credit facilities | Foreign Line of Credit | Line of Credit
Long-term Debt and Lease Obligation [Abstract]
Long-term debt, before deferred financing fees	$ 208			$ 195
Less portion due within one year	$ (16)			$ (95)
Interest rate	4.50%			4.87%