|
Retirement Benefits (Fair Value Disclosures) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2013
|
Dec. 31, 2013
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2011
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2011
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fixed Income Funds [Member]
|
Dec. 31, 2013
Fixed Income Funds [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fixed Income Funds [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fixed Income Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fixed Income Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Equity Funds [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Equity Funds [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Equity Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Equity Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Equity Securities [Member]
|
Dec. 31, 2013
Equity Securities [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Equity Securities [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Equity Securities [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Equity Securities [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Equity Securities - International [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Equity Securities - International [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Equity Securities - International [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Equity Securities - International [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fixed Income Funds, Emerging Markets [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fixed Income Funds, Emerging Markets [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fixed Income Funds, Emerging Markets [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fixed Income Funds, Emerging Markets [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Hedge Funds [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Hedge Funds [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Hedge Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Hedge Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Real Estate [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Real Estate [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Real Estate [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Real Estate [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Other Assets [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Other Assets [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Other Contract [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Other Contract [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Other Plan Assets [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Other Plan Assets [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 1 [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 1 [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 1 [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 1 [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 1 [Member]
Fixed Income Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 1 [Member]
Fixed Income Funds Developed Markets [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 1 [Member]
Equity Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 1 [Member]
Equity Securities [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 1 [Member]
Equity Securities [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 1 [Member]
Equity Securities [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 1 [Member]
Equity Securities [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 1 [Member]
Equity Securities - International [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 1 [Member]
Equity Securities - International [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 1 [Member]
Equity Securities - International [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 1 [Member]
Equity Securities - International [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 1 [Member]
Real Estate [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 1 [Member]
Real Estate [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 1 [Member]
Real Estate [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 1 [Member]
Real Estate [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 1 [Member]
Other Assets [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 1 [Member]
Other Assets [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 1 [Member]
Other Plan Assets [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 1 [Member]
Other Plan Assets [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Fixed Income Funds [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Fixed Income Funds [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Fixed Income Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Fixed Income Funds Developed Markets [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Equity Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Equity Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Equity Securities [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Equity Securities [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Equity Securities [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Equity Securities [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Equity Securities - International [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Equity Securities - International [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Equity Securities - International [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Equity Securities - International [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Fixed Income Funds, Emerging Markets [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Fixed Income Funds, Emerging Markets [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Fixed Income Funds, Emerging Markets [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Fixed Income Funds, Emerging Markets [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Hedge Funds [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Hedge Funds [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Hedge Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Hedge Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Real Estate [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Other Assets [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Other Assets [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Other Contract [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Other Contract [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Other Plan Assets [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Other Plan Assets [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 3 [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 3 [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 3 [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 3 [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 3 [Member]
Fixed Income Funds [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 3 [Member]
Fixed Income Funds [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 3 [Member]
Fixed Income Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 3 [Member]
Fixed Income Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 3 [Member]
Fixed Income Funds Developed Markets [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 3 [Member]
Equity Funds [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 3 [Member]
Equity Funds [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 3 [Member]
Equity Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 3 [Member]
Equity Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 3 [Member]
Hedge Funds [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 3 [Member]
Hedge Funds [Member]
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 3 [Member]
Hedge Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 3 [Member]
Hedge Funds [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2013
Fair Value, Inputs, Level 3 [Member]
Real Estate [Member]
Pension Plans, Defined Benefit [Member]
|
Dec. 31, 2012
Fair Value, Inputs, Level 3 [Member]
Real Estate [Member]
Pension Plans, Defined Benefit [Member]
|
|
| Defined Benefit Plan, Percentage of Global Investments in Plan Assets | 80.00% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Defined Benefit Plan, Target Allocation Percentage of Assets | 20.00% | 80.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Defined Benefit Plan, Fair Value of Plan Assets, Ending Balance | $ 1,879.6 | $ 1,518.0 | $ 1,339.0 | $ 9,481.7 | $ 8,286.6 | $ 7,186.3 | $ 54.7 | $ 59.4 | $ 1,036.1 | $ 1,075.4 | $ 88.9 | $ 81.9 | $ 1,069.9 | $ 991.2 | $ 39.4 | $ 45.4 | $ 400.3 | $ 457.7 | $ 167.2 | $ 127.7 | $ 2,483.8 | $ 1,905.3 | $ 38.2 | $ 40.3 | $ 382.6 | $ 402.3 | $ 266.4 | $ 234.0 | $ 2,902.3 | $ 2,555.5 | $ 36.7 | $ 35.4 | $ 521.4 | $ 504.3 | $ 51.3 | $ 685.3 | $ 1,136.8 | $ 869.1 | $ 24.8 | $ 394.9 | $ 134.6 | $ 105.9 | $ 2,018.4 | $ 1,648.6 | $ 170.2 | $ 156.4 | $ 17.4 | $ 18.3 | $ 30.4 | $ 189.2 | $ 307.9 | $ 61.6 | $ 33.9 | $ 1,045.8 | $ 673.3 | $ 36.7 | $ 35.4 | $ 368.0 | $ 353.5 | $ 18.0 | $ 245.2 | $ 6.2 | $ 140.1 | $ 1,533.9 | $ 1,229.9 | $ 4,860.1 | $ 4,363.1 | $ 53.1 | $ 59.0 | $ 850.0 | $ 915.3 | $ 76.4 | $ 63.3 | $ 21.1 | $ 15.0 | $ 211.1 | $ 149.8 | $ 105.6 | $ 93.8 | $ 1,438.0 | $ 1,232.0 | $ 38.2 | $ 40.3 | $ 382.6 | $ 402.3 | $ 145.8 | $ 134.1 | $ 1,461.9 | $ 1,337.4 | $ 8.2 | $ 33.3 | $ 440.1 | $ 1,136.8 | $ 869.1 | $ 18.6 | $ 254.8 | $ 211.1 | $ 182.2 | $ 2,603.2 | $ 2,274.9 | $ 1.6 | $ 0.4 | $ 15.9 | $ 3.7 | $ 3.7 | $ 88.9 | $ 81.9 | $ 993.5 | $ 910.5 | $ 120.6 | $ 99.9 | $ 1,440.4 | $ 1,218.1 | $ 153.4 | $ 142.6 | |||
| Defined Benefit Plan, Fair Value of Plan Assets, Beginning Balance | 1,879.6 | 1,518.0 | 1,339.0 | 9,481.7 | 8,286.6 | 7,186.3 | 54.7 | 59.4 | 1,036.1 | 1,075.4 | 88.9 | 81.9 | 1,069.9 | 991.2 | 39.4 | 45.4 | 400.3 | 457.7 | 167.2 | 127.7 | 2,483.8 | 1,905.3 | 38.2 | 40.3 | 382.6 | 402.3 | 266.4 | 234.0 | 2,902.3 | 2,555.5 | 36.7 | 35.4 | 521.4 | 504.3 | 51.3 | 685.3 | 1,136.8 | 869.1 | 24.8 | 394.9 | 134.6 | 105.9 | 2,018.4 | 1,648.6 | 170.2 | 156.4 | 17.4 | 18.3 | 30.4 | 189.2 | 307.9 | 61.6 | 33.9 | 1,045.8 | 673.3 | 36.7 | 35.4 | 368.0 | 353.5 | 18.0 | 245.2 | 6.2 | 140.1 | 1,533.9 | 1,229.9 | 4,860.1 | 4,363.1 | 53.1 | 59.0 | 850.0 | 915.3 | 76.4 | 63.3 | 21.1 | 15.0 | 211.1 | 149.8 | 105.6 | 93.8 | 1,438.0 | 1,232.0 | 38.2 | 40.3 | 382.6 | 402.3 | 145.8 | 134.1 | 1,461.9 | 1,337.4 | 8.2 | 33.3 | 440.1 | 1,136.8 | 869.1 | 18.6 | 254.8 | 182.2 | 185.2 | 2,274.9 | 2,256.6 | 0.4 | 0 | 3.7 | 0 | 3.7 | 81.9 | 79.9 | 910.5 | 870.2 | 99.9 | 105.3 | 1,218.1 | 1,248.4 | 142.6 | 138.0 | |||
| Defined Benefit Plan, Actual Return on Plan Assets Still Held | 23.9 | (0.9) | 284.6 | 32.0 | (0.3) | 0 | (3.0) | 0.3 | 13.9 | 0 | 155.7 | 10.1 | 10.3 | (0.9) | 123.4 | 18.3 | 8.5 | 3.3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Defined Benefit Plan, Actual Return on Plan Assets Sold During Period | 0 | 0 | 0 | (0.2) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | (0.2) | 0 | 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Defined Benefit Plan, Purchases, Sales, and Settlements | 3.9 | 32.2 | 0.4 | 3.7 | (6.9) | (72.7) | 10.4 | 98.9 | 2.3 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Defined Benefit Plan, Business Combinations and Acquisitions, Plan Assets | (2.2) | (14.6) | 0.3 | 2.3 | 2.0 | 30.2 | (4.5) | (48.4) | 1.3 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Defined Benefit Plan, Transfers Between Measurement Levels | $ 1.1 | $ 0.1 | $ 11.5 | $ 1.1 | $ 1.1 | $ 0.1 | $ 11.5 | $ 1.1 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||