Financing Arrangements and Derivative Financial Instruments - Long Term Debt and Finance Leases, Net of Unamortized Discounts, and Interest Rates (Parenthetical) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	May 31, 2021	May 18, 2021	May 06, 2021	Apr. 06, 2021	Dec. 31, 2020
Long-term Debt and Lease Obligation [Abstract]
Non Cash Financing Additions	$ 12
5.125% due 2023 | Senior Notes
Long-term Debt and Lease Obligation [Abstract]
Interest rate, stated percentage	5.125%	5.125%		5.125%		5.125%
3.75% Euro Notes due 2023 | Euro Notes
Long-term Debt and Lease Obligation [Abstract]
Interest rate, stated percentage	3.75%					3.75%
9.5% due 2025 | Senior Notes
Long-term Debt and Lease Obligation [Abstract]
Interest rate, stated percentage	9.50%					9.50%
5% due 2026 | Senior Notes
Long-term Debt and Lease Obligation [Abstract]
Interest rate, stated percentage	5.00%					5.00%
4.875% due 2027 | Senior Notes
Long-term Debt and Lease Obligation [Abstract]
Interest rate, stated percentage	4.875%					4.875%
7.625% due 2027 | Senior Notes
Long-term Debt and Lease Obligation [Abstract]
Interest rate, stated percentage	7.625%					7.625%
7% due 2028 | Senior Notes
Long-term Debt and Lease Obligation [Abstract]
Interest rate, stated percentage	7.00%					7.00%
2.75 Due 2028 | Euro Notes
Long-term Debt and Lease Obligation [Abstract]
Interest rate, stated percentage	2.75%					2.75%
5% due 2029 | Senior Notes
Long-term Debt and Lease Obligation [Abstract]
Interest rate, stated percentage	5.00%		5.00%			5.00%
5.25% due April 2031 | Senior Notes
Long-term Debt and Lease Obligation [Abstract]
Interest rate, stated percentage	5.25%				5.25%	5.25%
5.25% due July 2031 | Senior Notes
Long-term Debt and Lease Obligation [Abstract]
Interest rate, stated percentage	5.25%		5.25%			5.25%
5.625% due 2033 | Senior Notes
Long-term Debt and Lease Obligation [Abstract]
Interest rate, stated percentage	5.625%				5.625%	5.625%