Unaudited Quarterly Financial Information - Summary of Unaudited Quarterly Financial Information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Net Sales	$ 830	$ 781	$ 802	$ 835	$ 799	$ 784	$ 877	$ 915	$ 3,248	$ 3,375	$ 3,096
Gross Profit	161	172	182	196	172	178	215	211	711	776	735
Net income (loss)	$ 136	$ 38	$ 66	$ 73	$ 69	$ 929	$ 150	$ 58	$ 313	$ 1,206	$ (983)
Earnings (loss) per share - basic	$ 1.82	$ 0.51	$ 0.88	$ 0.98	$ 0.93	$ 12.54	$ 2.03	$ 0.78	$ 4.20	$ 16.28	$ (13.27)
Earnings (loss) per share - diluted	$ 1.79	$ 0.50	$ 0.86	$ 0.97	$ 0.92	$ 12.54	$ 2.03	$ 0.78	$ 4.12	$ 16.21	$ (13.27)