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EMPLOYEE RETIREMENT PLANS (Details 9) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Retirement Plans [Line Items]
Pre-tax expense	$ 76us-gaap_PensionExpense	$ 89us-gaap_PensionExpense	$ 83us-gaap_PensionExpense
Defined-contribution plans
Retirement Plans [Line Items]
Pre-tax expense	46	54	43
Defined-benefit pension plans
Retirement Plans [Line Items]
Pre-tax expense	25	31	36
Multi-employer plans
Retirement Plans [Line Items]
Pre-tax expense	$ 5	$ 4	$ 4

The amount of pension benefit costs recognized during the period for (1) defined benefit plans and (2) defined contribution plans. For defined benefit plans, pension expense includes the following components: service cost, interest cost, expected return on plan assets, gain (loss) on plan assets, prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. For defined contribution plans, the pension expense generally equals the firm's contribution to employees' accounts (if the firm contributes) during the period.

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