Consolidating Financial Information - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Assets	$ 17,194,000,000		$ 16,511,000,000
Liabilities	12,234,000,000		11,786,000,000
Total shareholders' equity	4,960,000,000	$ 4,332,000,000	4,725,000,000	$ 4,142,000,000
Net income	166,000,000	184,000,000
Net sales	3,699,000,000	3,691,000,000
Cost of goods sold	2,765,000,000	2,701,000,000
8.75% due 2020 | Senior Notes
Debt Instrument [Line Items]
Debt instrument, face amount	$ 282,000,000
Interest rate, stated percentage	8.75%
7% due 2022 | Senior Notes
Debt Instrument [Line Items]
Debt instrument, face amount	$ 700,000,000
Interest rate, stated percentage	7.00%
5.125% due 2023 | Senior Notes
Debt Instrument [Line Items]
Debt instrument, face amount	$ 1,000,000,000
Interest rate, stated percentage	5.125%
5% due 2026 | Senior Notes
Debt Instrument [Line Items]
Debt instrument, face amount	$ 900,000,000
Interest rate, stated percentage	5.00%
4.875% due 2027 | Senior Notes
Debt Instrument [Line Items]
Debt instrument, face amount	$ 700,000,000
Interest rate, stated percentage	4.875%
Reportable Legal Entities | Parent Company
Debt Instrument [Line Items]
Assets	$ 11,744,000,000		11,477,000,000
Liabilities	7,011,000,000		6,970,000,000
Total shareholders' equity	4,733,000,000		4,507,000,000
Net income	166,000,000	184,000,000
Net sales	1,767,000,000	1,787,000,000
Cost of goods sold	1,380,000,000	1,330,000,000
Reportable Legal Entities | Parent Company | Restatement Adjustment
Debt Instrument [Line Items]
Assets			(113,000,000)
Liabilities			(113,000,000)
Reportable Legal Entities | Guarantor Subsidiaries
Debt Instrument [Line Items]
Assets	1,400,000,000		1,399,000,000
Liabilities	242,000,000		268,000,000
Total shareholders' equity	1,158,000,000		1,131,000,000
Net income	24,000,000	28,000,000
Net sales	299,000,000	314,000,000
Cost of goods sold	274,000,000	295,000,000
Reportable Legal Entities | Guarantor Subsidiaries | Restatement Adjustment
Debt Instrument [Line Items]
Assets			(358,000,000)
Liabilities			(46,000,000)
Total shareholders' equity			(312,000,000)
Net income		6,000,000
Reportable Legal Entities | Non-Guarantor Subsidiaries
Debt Instrument [Line Items]
Assets	9,291,000,000		8,989,000,000
Liabilities	5,213,000,000		5,097,000,000
Total shareholders' equity	4,078,000,000		3,892,000,000
Net income	107,000,000	89,000,000
Net sales	2,302,000,000	2,256,000,000
Cost of goods sold	1,796,000,000	1,777,000,000
Reportable Legal Entities | Non-Guarantor Subsidiaries | Restatement Adjustment
Debt Instrument [Line Items]
Net sales		292,000,000
Cost of goods sold		292,000,000
Consolidating Entries and Eliminations
Debt Instrument [Line Items]
Assets	(5,241,000,000)		(5,354,000,000)
Liabilities	(232,000,000)		(549,000,000)
Total shareholders' equity	(5,009,000,000)		$ (4,805,000,000)
Net income	(131,000,000)	(117,000,000)
Net sales	(669,000,000)	(666,000,000)
Cost of goods sold	$ (685,000,000)	(701,000,000)
Consolidating Entries and Eliminations | Restatement Adjustment
Debt Instrument [Line Items]
Net sales		(292,000,000)
Cost of goods sold		$ (292,000,000)