Retirement and Employee Benefit Plans (Plan Assets Allocation to any Asset Class Falls Outside of the Specified Range) (Details)	12 Months Ended
	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations	100.00%
Actual asset allocations	100.00%
U.S. Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations	35.00%	[1]
Actual asset allocations	36.00%	[1]
International Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations	30.00%	[2]
Actual asset allocations	31.00%	[2]
Emerging Market Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations	5.00%	[3]
Actual asset allocations	6.00%	[3]
Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations	29.00%	[4]
Actual asset allocations	26.00%	[4]
Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations	1.00%	[5]
Actual asset allocations	1.00%	[5]

[1] Asset category above includes the following equity securities in the table below: U.S large cap growth equity, U.S. large cap value equity, U.S. large cap core equity, and U.S. small cap equity.

[2] Asset category above includes Non-U.S. equity securities in the table below.

[3] Asset category above includes Emerging markets equity securities below.

[4] Asset category above includes Fixed income pension plan assets in the table below.

[5] Asset category above includes Cash and cash equivalents pension plan assets in the table below.