Note 16 - Retirement Plans (Details) - Reconciliation of Beginning and Ending Balances of Assets Measured With Signficiant Unobservable Inputs - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Major US Plans [Member]
Note 16 - Retirement Plans (Details) - Reconciliation of Beginning and Ending Balances of Assets Measured With Signficiant Unobservable Inputs [Line Items]
Fair value of plan assets at beginning of period	$ 4,160
Fair value of plan assets at end of period	3,793	$ 4,160
Major Non-U.S. Plans [Member]
Note 16 - Retirement Plans (Details) - Reconciliation of Beginning and Ending Balances of Assets Measured With Signficiant Unobservable Inputs [Line Items]
Fair value of plan assets at beginning of period	795
Fair value of plan assets at end of period	728	795
Real Estate [Member] | Major US Plans [Member]
Note 16 - Retirement Plans (Details) - Reconciliation of Beginning and Ending Balances of Assets Measured With Signficiant Unobservable Inputs [Line Items]
Fair value of plan assets at beginning of period	139
Fair value of plan assets at end of period	130	139
Real Estate [Member] | Major Non-U.S. Plans [Member]
Note 16 - Retirement Plans (Details) - Reconciliation of Beginning and Ending Balances of Assets Measured With Signficiant Unobservable Inputs [Line Items]
Fair value of plan assets at beginning of period	2
Fair value of plan assets at end of period	2	2
Private Equity Funds [Member] | Major US Plans [Member]
Note 16 - Retirement Plans (Details) - Reconciliation of Beginning and Ending Balances of Assets Measured With Signficiant Unobservable Inputs [Line Items]
Fair value of plan assets at beginning of period	780
Fair value of plan assets at end of period	768	780
Private Equity Funds [Member] | Major Non-U.S. Plans [Member]
Note 16 - Retirement Plans (Details) - Reconciliation of Beginning and Ending Balances of Assets Measured With Signficiant Unobservable Inputs [Line Items]
Fair value of plan assets at beginning of period	56
Fair value of plan assets at end of period	61	56
Fair Value, Inputs, Level 3 [Member] | Major US Plans [Member]
Note 16 - Retirement Plans (Details) - Reconciliation of Beginning and Ending Balances of Assets Measured With Signficiant Unobservable Inputs [Line Items]
Fair value of plan assets at beginning of period	69
Net Realized and Unrealized Gains/Losses	7
Net Purchases and Sales	(18)
Fair value of plan assets at end of period	58	69
Fair Value, Inputs, Level 3 [Member] | Major Non-U.S. Plans [Member]
Note 16 - Retirement Plans (Details) - Reconciliation of Beginning and Ending Balances of Assets Measured With Signficiant Unobservable Inputs [Line Items]
Fair value of plan assets at beginning of period	69	101
Net Realized and Unrealized Gains/Losses		(12)
Net Purchases and Sales		(20)
Fair value of plan assets at end of period		69
Fair Value, Inputs, Level 3 [Member] | Real Estate [Member] | Major US Plans [Member]
Note 16 - Retirement Plans (Details) - Reconciliation of Beginning and Ending Balances of Assets Measured With Signficiant Unobservable Inputs [Line Items]
Fair value of plan assets at beginning of period	41
Net Realized and Unrealized Gains/Losses	6
Net Purchases and Sales	(13)
Fair value of plan assets at end of period	34	41
Fair Value, Inputs, Level 3 [Member] | Real Estate [Member] | Major Non-U.S. Plans [Member]
Note 16 - Retirement Plans (Details) - Reconciliation of Beginning and Ending Balances of Assets Measured With Signficiant Unobservable Inputs [Line Items]
Fair value of plan assets at beginning of period	41	47
Net Purchases and Sales		(6)
Fair value of plan assets at end of period		41
Fair Value, Inputs, Level 3 [Member] | Private Equity Funds [Member] | Major US Plans [Member]
Note 16 - Retirement Plans (Details) - Reconciliation of Beginning and Ending Balances of Assets Measured With Signficiant Unobservable Inputs [Line Items]
Fair value of plan assets at beginning of period	28
Net Realized and Unrealized Gains/Losses	1
Net Purchases and Sales	(5)
Fair value of plan assets at end of period	24	28
Fair Value, Inputs, Level 3 [Member] | Private Equity Funds [Member] | Major Non-U.S. Plans [Member]
Note 16 - Retirement Plans (Details) - Reconciliation of Beginning and Ending Balances of Assets Measured With Signficiant Unobservable Inputs [Line Items]
Fair value of plan assets at beginning of period	$ 28	54
Net Realized and Unrealized Gains/Losses		(12)
Net Purchases and Sales		(14)
Fair value of plan assets at end of period		$ 28