Retirement Benefit Plans (Details 8)	9 Months Ended
	Sep. 30, 2014
Target assets allocation and actual asset allocations for US pension plan assets
Actual Asset Allocation	100.00%
Postretirement Benefit Plans [Member]
Target assets allocation and actual asset allocations for US pension plan assets
Actual Asset Allocation	100.00%
Postretirement Benefit Plans [Member] | Equity Securities [Member]
Target assets allocation and actual asset allocations for US pension plan assets
Actual Asset Allocation	50.00%
Postretirement Benefit Plans [Member] | Debt Securities [Member]
Target assets allocation and actual asset allocations for US pension plan assets
Actual Asset Allocation	50.00%
U.S. Plans [Member] | Equity Securities [Member]
Target assets allocation and actual asset allocations for US pension plan assets
Actual Asset Allocation	23.00%
Minimum [Member] | Postretirement Benefit Plans [Member] | Equity Securities [Member]
Target assets allocation and actual asset allocations for US pension plan assets
Current Target Allocation	45.00%
Minimum [Member] | Postretirement Benefit Plans [Member] | Debt Securities [Member]
Target assets allocation and actual asset allocations for US pension plan assets
Current Target Allocation	45.00%
Minimum [Member] | U.S. Plans [Member] | Equity Securities [Member]
Target assets allocation and actual asset allocations for US pension plan assets
Current Target Allocation	15.00%
Minimum [Member] | U.S. Plans [Member] | Debt Securities [Member]
Target assets allocation and actual asset allocations for US pension plan assets
Current Target Allocation	55.00%
Minimum [Member] | U.S. Plans [Member] | Other Investments [Member]
Target assets allocation and actual asset allocations for US pension plan assets
Current Target Allocation	8.00%
Maximum [Member] | Postretirement Benefit Plans [Member] | Equity Securities [Member]
Target assets allocation and actual asset allocations for US pension plan assets
Current Target Allocation	55.00%
Maximum [Member] | Postretirement Benefit Plans [Member] | Debt Securities [Member]
Target assets allocation and actual asset allocations for US pension plan assets
Current Target Allocation	55.00%
Maximum [Member] | U.S. Plans [Member] | Equity Securities [Member]
Target assets allocation and actual asset allocations for US pension plan assets
Current Target Allocation	25.00%
Maximum [Member] | U.S. Plans [Member] | Debt Securities [Member]
Target assets allocation and actual asset allocations for US pension plan assets
Current Target Allocation	65.00%
Actual Asset Allocation	59.00%
Maximum [Member] | U.S. Plans [Member] | Other Investments [Member]
Target assets allocation and actual asset allocations for US pension plan assets
Current Target Allocation	25.00%
Actual Asset Allocation	18.00%