Guarantees of Registered Securities - Narrative (Details) - RCI (Issuer) [Member]	3 Months Ended
	Sep. 30, 2016
Condensed Financial Statements, Captions [Line Items]
Subsidiary ownership percentage by parent	100.00%
Unsecured Debt [Member] | 5% Senior Notes, due September 2017 [Member]
Condensed Financial Statements, Captions [Line Items]
Stated interest rate percentage	5.00%
Unsecured Debt [Member] | 7.875% Senior Notes, due August 2019 [Member]
Condensed Financial Statements, Captions [Line Items]
Stated interest rate percentage	7.875%
Unsecured Debt [Member] | 4.875% Senior Notes, due June 2022 [Member]
Condensed Financial Statements, Captions [Line Items]
Stated interest rate percentage	4.875%
Unsecured Debt [Member] | 4.75% Senior Notes, due January 2024 [Member]
Condensed Financial Statements, Captions [Line Items]
Stated interest rate percentage	4.75%
Unsecured Debt [Member] | 5.4% Senior Notes due 2042 [Member]
Condensed Financial Statements, Captions [Line Items]
Stated interest rate percentage	5.40%
Unsecured Debt [Member] | 5.85% Senior Notes, due January 2044 [Member]
Condensed Financial Statements, Captions [Line Items]
Stated interest rate percentage	5.85%