Subsequent Event	3 Months Ended
Mar. 31, 2014
Subsequent Events [Abstract]
Subsequent Event	11. Subsequent Event On April 18, 2014, we entered into a five-year senior unsecured credit facility with a syndicate of lenders, including Wells Fargo Bank, National Association, as administrative agent. The credit facility will become available to us upon the satisfaction of customary conditions, including the consummation of the separation. The credit facility will be for an aggregate principal amount of up to $750 million with sub-facilities for standby letters of credit and swingline loans, each with a sublimit of $150 million and $50 million, respectively. We have the right, subject to certain conditions, to increase the aggregate principal amount of commitments under the credit facility by $250 million. The credit facility will be unsecured and guaranteed by our domestic subsidiaries. In the event that we or any subsidiary incurs long-term debt which is secured (other than certain excluded obligations), then we are required to secure the credit facility on equal terms with the security granted to such future debt. The credit agreement related to the credit facility contains usual and customary affirmative and negative covenants for credit facilities of this type including financial covenants consisting of (a) a maximum capitalization ratio (as defined in the credit agreement) of 50% and (b) a minimum interest coverage ratio (as defined in the credit agreement) of no less than 3.00x. Borrowings under the credit facility will bear interest at a base rate (as defined in the credit agreement) plus an applicable interest margin based on our capitalization ratio. The base rate is calculated as the highest of (a) the Federal Funds Rate, as published by the Federal Reserve Bank of New York, plus 1/2 of 1%, (b) the prime commercial lending rate of the administrative agent, as established from time to time at its principal U.S. office, and (c) the Daily One-Month LIBOR (as defined in the credit agreement) plus 1%. We also have the option for our borrowings under the credit facility to bear interest based on LIBOR (as defined in the credit agreement). The credit agreement also provides for customary fees, including administrative agent fees, commitment fees, fees in respect of letters of credit and other fees.

11. Subsequent Event

On April 18, 2014, we entered into a five-year senior unsecured credit facility with a syndicate of lenders, including Wells Fargo Bank, National Association, as administrative agent. The credit facility will become available to us upon the satisfaction of customary conditions, including the consummation of the separation.

The credit facility will be for an aggregate principal amount of up to $750 million with sub-facilities for standby letters of credit and swingline loans, each with a sublimit of $150 million and $50 million, respectively. We have the right, subject to certain conditions, to increase the aggregate principal amount of commitments under the credit facility by $250 million.

The credit facility will be unsecured and guaranteed by our domestic subsidiaries. In the event that we or any subsidiary incurs long-term debt which is secured (other than certain excluded obligations), then we are required to secure the credit facility on equal terms with the security granted to such future debt.

The credit agreement related to the credit facility contains usual and customary affirmative and negative covenants for credit facilities of this type including financial covenants consisting of (a) a maximum capitalization ratio (as defined in the credit agreement) of 50% and (b) a minimum interest coverage ratio (as defined in the credit agreement) of no less than 3.00x. Borrowings under the credit facility will bear interest at a base rate (as defined in the credit agreement) plus an applicable interest margin based on our capitalization ratio. The base rate is calculated as the highest of (a) the Federal Funds Rate, as published by the Federal Reserve Bank of New York, plus 1/2 of 1%, (b) the prime commercial lending rate of the administrative agent, as established from time to time at its principal U.S. office, and (c) the Daily One-Month LIBOR (as defined in the credit agreement) plus 1%. We also have the option for our borrowings under the credit facility to bear interest based on LIBOR (as defined in the credit agreement). The credit agreement also provides for customary fees, including administrative agent fees, commitment fees, fees in respect of letters of credit and other fees.