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Defined Benefit Pension Plan Accounting Policy Changes (Details) (Subsequent Event [Member], Change in Accounting Policy, Change in Accounting Method, Market-related Value to Fair Value [Member], Restatement Adjustment [Member], USD $) In Millions, unless otherwise specified	Jul. 04, 2014
Retained Earnings [Member]
Change in Accounting Estimate [Line Items]
Cumulative effect of change in accounting principle	$ 986
Accumulated Other Comprehensive Income (Loss) [Member]
Change in Accounting Estimate [Line Items]
Cumulative effect of change in accounting principle	1,002
Non-Controlling Interest [Member]
Change in Accounting Estimate [Line Items]
Cumulative effect of change in accounting principle	$ 16

Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented.

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